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250-700 exam Dumps Source : Implementation of HA Solutions for Windows using VCS 4.1
Test Code : 250-700
Test title : Implementation of HA Solutions for Windows using VCS 4.1
Vendor title : Symantec
: 73 actual Questions
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Symantec Implementation of HA Solutions
No outcome discovered, try modern keyword!nowadays, cloud-primarily based ERP options are altering the affordability and operability equations, and businesses of low sizes are turning to web-primarily based application solutions to retailer on upfront charges, simplify imp...
MOUNTAIN VIEW, CA--(Marketwire -08/13/12)- Symantec Corp. (SYMC) these days announced an add-on retort for Symantec's Cluster File system that allows consumers to race huge information analytics on their current infrastructure through making it highly purchasable and manageable. Apache Hadoop offers shoppers colossal expense to pressure income by using helping anatomize statistics for company insights, besides the fact that children many existing information solutions want the statistics management capabilities and developed-in resilience to overcome the can imbue and complexity of expanding storage and server sprawl. with the aid of working intently with Hortonworks, the modern Symantec enterprise retort for Hadoop providing offers a scalable, resilient statistics management solution for managing broad facts workloads to wait on bear Apache Hadoop in a position for enterprise deployment.
click to Tweet: Symantec massive statistics retort and @Hortonworks partnership bear Apache Hadoop enterprise ready: http://bit.ly/QRNPUi
Symantec's Cluster File outfit is a confirmed enterprise retort to ply broad information workloads. With Symantec commercial enterprise solution for Hadoop, businesses can:
Leverage their latest infrastructure by means of scaling up to 16 PB of information including structured and unstructured information
evade over provisioning on both storage and compute potential
Run analytics anywhere the statistics sits, disposing of expensive records strikes
Make Hadoop extremely obtainable with out a feasible separate factor of failure or a efficiency bottleneck
examine greater specified weblog posts: http://bit.ly/P3dtSA
Leveraging present Infrastructure and avoiding Over ProvisioningIT directors believe spent appreciable time and resources consolidating their records facilities and decreasing their footprint via virtualization and cloud computing. Taking abilities of big data analytics should leverage this consolidation of storage and compute resources. Symantec commerce solution for Hadoop enables consumers to race Hadoop whereas minimizing investments in a parallel infrastructure -- drastically cutting back the storage footprint to in the reduction of cost and complexity.
examining records where it Resides and removing high priced facts MovesThe first step in making the Hadoop infrastructure travail is to funnel facts for evaluation. by means of enabling integration of present storage belongings into the Hadoop processing framework, companies can sojourn away from time drinking and dear records circulation activities. Symantec commerce solution for Hadoop permits administrators to depart the data where it resides and race analytics on it while not having to extract, radically change and load it to a divorce cluster -- averting costly and painful information migrations.
guaranteeing Hadoop is totally AvailableIn an Apache Hadoop environment, statistics is allotted across nodes with just one metadata server that knows the statistics vicinity -- probably leading to a performance bottleneck and separate point of failure that could lead to software downtime. to meet the exigency for well timed insights, Symantec commercial enterprise retort for Hadoop offers file outfit inordinate availability to the metadata server while additionally guaranteeing analytics purposes proceed to race so long as there is at least one working node within the cluster. due to the fact that the Hadoop file outfit is changed with Symantec's Cluster File gadget, each node within the cluster can additionally access records concurrently, disposing of both the efficiency bottleneck and separate constituent of failure.
Pricing, Availability and SupportThe Symantec commercial enterprise solution for Hadoop is accessible now to present Cluster File system consumers at no additional charge. Symantec commercial enterprise solution for Hadoop supports Hortonworks data Platform (HDP) 1.0 and Apache Hadoop 1.0.2. customers working HDP 1.0 may exist capable of procure Hadoop assist and training from Symantec's Hadoop accomplice Hortonworks, a number one commerce vendor merchandising the innovation, structure and wait on of Apache Hadoop.
aiding prices"shoppers can't Come up with the money for to let the challenges of imposing broad information translate into administration challenges inside the infrastructure they've worked so challenging to build," spoke of Don Angspatt, vice chairman of product management, Storage and Availability administration neighborhood, Symantec Corp. "Our commerce retort for Hadoop helps connect Hadoop's enterprise analytics to the current storage ambiance whereas addressing key challenges of server sprawl and high availability for vital applications. or not it's now utterly viable to procure the huge information solution you desire from the infrastructure you could believe got."
"Hortonworks is excited to associate with Symantec to supply shoppers unbelievable company analytics with no exigency to rebuild their IT infrastructure," spoke of Mitch Ferguson, vice president of enterprise development, Hortonworks. "The Hortonworks facts Platform is built upon the most tough version of Apache Hadoop and Symantec offers the market leading storage management and high availability utility with their Cluster File system to enable seamless implementation. They appear to exist forward to providing best-in-category aid and working towards to champion shoppers race Hadoop in their latest ambiance and coerce their businesses forward to the subsequent degree."
"corporations exigency to leverage the vigour of Hadoop analytics to contemplate if Hadoop-supported applications can coerce censorious enterprise selections. therefore, IT management will want the self belief that their Hadoop-related infrastructure is ready to arise to the demands of a construction records middle ambiance," referred to John Webster, Senior colleague of Evaluator group. "Symantec commercial enterprise retort for Hadoop is one instance of a device designed to smooth the transition from pilot project to creation via addressing key facts headquarters challenges including high availability, protection, information insurance plan, and records governance."
connect with Symantec
About Symantec Symantec protects the realm's suggestions, and is the international leader in safety, backup and availability solutions. Their imaginitive products and functions protect people and assistance in any ambiance -- from the smallest cellular gadget, to the enterprise information core, to cloud-based mostly programs. Their industry-leading potential in maintaining records, identities and interactions offers their shoppers self assurance in a linked world. greater guidance is purchasable at www.symantec.com or by using connecting with Symantec at: go.symantec.com/socialmedia.
observe TO EDITORS: if you'd enjoy additional info on Symantec employer and its items, gladden consult with the Symantec intelligence scope at http://www.symantec.com/news. low fees mentioned are in U.S. bucks and are cogent simplest within the u.s..
Symantec and the Symantec brand are emblems or registered emblems of Symantec employer or its affiliates in the U.S. and other nations. other names could exist logos of their respective house owners.
ahead-searching STATEMENTS: Any forward-looking indication of plans for items is preparatory and low future release dates are tentative and are discipline to alternate. Any future liberate of the product or planned changes to product means, functionality, or feature are area to ongoing assessment through Symantec, and might or might furthermore no longer exist carried out and should now not exist considered enterprise commitments by Symantec and may no longer exist relied upon in making procuring decisions.
Technorati TagsSymantec, massive records, Hadoop, Apache Hadoop, Hortonworks, analytics, virtualization, cloud, information, storage administration, high availability, disaster recuperation
The epic of Symantec’s fresh transformation starts with a strategic aspiration: to position the enterprise as an incredible disruptor in its chosen sector of cybersecurity. Over the span of five years, the company went through two foremost divestitures, selling Veritas to a personal fairness neighborhood in 2016, and web page protection to DigiCert in 2017. The enterprise furthermore made two colossal acquisitions, Blue Coat in 2016 and LifeLock in 2017, followed through three smaller ones. Symantec then initiated two intensive rounds of restructuring that protected decreasing head count number, which laid the groundwork for a subsequent wave of growth.
In doing low this, the company reoriented its aim. It went from promoting enterprise software to featuring the world’s main cybersecurity structures for both patrons and global agencies, and shifted company models from product orientation to subscription-based. The enterprise furthermore went via a deeply felt cultural trade, including a brand modern emphasis on diversity on the exact management stage. lastly, Symantec changed CEOs twice, discovering solid ground with Blue Coat alumnus Greg Clark on the helm.
Symantec chief counsel officer Sheila Jordan performed — and continues to play — a pivotal position overseeing the redesign and consolidation of the enterprise’s technological infrastructure. Jordan joined Symantec in 2014, soon after the initiative began. Jordan prior to now served as a senior vp at Cisco techniques and Disney, no longer simply in IT however additionally in finance, assisting sales and advertising and marketing. Her technical information and enthusiastic, matter-of-fact strategy to simplifying the company’s digital expertise became a mannequin for Symantec’s consumers. She’s furthermore one among Silicon Valley’s most prominent female executives, partially on account of her potential to identify developments within the industry, and reside ahead of the curve.
method+company caught up with Jordan in her Mountain View, Calif., office to dispute Symantec’s transformation and the changes taking region in Silicon Valley nowadays.
S+B: How would you characterize your role in Symantec’s transformation?JORDAN: i used to exist hired back in 2014 to carry suggestions expertise returned in-residence from a outdated outsourced mannequin and to construct a global-classification IT organization. I knew that could exist a broad challenge, and i conception it would exist lots of fun. at the moment, I had no thought that the gross company turned into about to alternate.
Then came the Veritas separation. A divestiture of this model is drastically more involved than an acquisition. They were becoming two divorce businesses with their personal unbiased ecosystems of approaches and techniques: WANs, LANs, sites, statistics facilities and labs, commercial enterprise aid planning (ERP) methods, applications, laptops, and cell instruments. every dinky thing needed to exist rupture up apart, together with the entire information. They determined to Do it in a comprehensive means, to acquire this probability to start cleansing up strategies and simplifying every dinky thing.
In 2016, with the Blue Coat acquisition, they made an analogous alternative. They may believe just jammed both companies together, with many legacy and redundant applications running similtaneously. instead, they chose to simplify.
We strategically transformed every point of the enterprise and took the haphazard to believe tactically and lengthy-time period. This resulted in a number of accomplishments, including consolidating into one consumer relationship administration equipment. we're presently one unencumber far from consolidating distinctive ERPs into one ERP; reworking their company procedures and casting off product SKUs; and streamlining their distribution channels and programs to bear doing commerce with Symantec more straightforward.
S+B: What had to occur interior the commerce to bear the transformation prevail?JORDAN: americans dispute “digital transformations” as in the event that they were low about expertise. within the grand scheme of issues, the know-how is the facile half. greater importantly, you should headquarters of attention on enhancing your clients’ adventure in purchasing your products and functions. as an instance, due to the fact that your customers disburse cellular gadgets, your application interfaces believe to exist as cellular-oriented as your shoppers are. At Symantec, they concentrated on 4 factors: pace, alignment, strategic selections, and communique.
S+B: Let’s acquire these so as. What does specializing in hasten and alignment insinuate in practice?JORDAN: We’ve become a distinguished deal quicker and extra aligned at Symantec. through this alignment, they were able to forward a end that integrated six organizations and divested two. Between April 2017 and November 2018, we went via eight primary application releases, which blanketed colossal alterations to ERP, CRM, and foundational statistics and reporting systems, with minimal enterprise disruption. this is unparalleled in the ERP world. each and every principal release included a regular of 24 diverse services, from advertising and marketing to engineering to finance. This equates to essentially a release each different month. They used an agile approach, with building, integration, and consumer acceptance low going on at the identical time as. because of the enterprise and IT alignment, the satisfactory of every liberate turned into wonderful.
We used an identical tips on how to build their world subscription platform, which is the platform used to sell their cloud SaaS [software-as-a-service] products. To enhance velocity and simplicity, they modeled their user interface on the Amazon event: in barely a pair of clicks your order is achieved.
shoppers and partners want a seamless adventure. They don’t are looking to observe inner organizational handoffs. helping the company articulate the client experience has [given us] a compelling option to suppose horizontally, and from a customer lens, versus a purposeful view.
We brought IT, the company units, and the other capabilities in sync. for instance, once they realized they couldn’t procure every dinky thing executed in the April ERP outfit unlock, they determined to thrust some points to can also. This meant the businesses would exigency to absorb a sheperd fashion for a brief period of time. They agreed to this in enhance because they low shared their expectations up front and they spent a honest period of time on verbal exchange.
i am additionally super proud of the style their engineering, advertising, and IT teams travail together. For the international subscription platform, engineering owns the everyday cloud, where the safety SaaS products procure provisioned. marketing owns the navigation, consumer adventure, and content material on the website for their direct small- and medium-company consumers. IT owns the ordering and money systems — and naturally, connects the entire platform together. but low of us personal and are dependable for the total event.
In that context, i really enjoy that IT individuals are naturally systemic process thinkers; they observe horizontally. They understand how clients adventure the company. they will add expense in broader companies via pointing out duplications, gaps, and dependencies.
big choices and communication
S+B: You said a different ingredient turned into “strategic choices.” What does that imply?JORDAN: i used to exist relating to the manner they organized the design and implementation of the transformation undertaking. There are two councils. each different Friday, a software council that oversees the details of the alternate system meets for 2 hours to lope through enterprise and IT considerations. Then, fundamental strategic decisions are discussed once a month with the aid of a extra senior group: the software board. This board includes the CEO and commerce unit prevalent managers. throughout these sessions, they believe modified their pricing structure for minute groups, rethought their channel method, and simplified their product choices.
S+B: How Do you are making the councils work?JORDAN: They set expectations through the manner they work. Flawless execution is not non-compulsory for us. It’s obligatory. We’re low during this together, and we’re low in charge.
as an instance, they realized to rejoice what they convene “reds.” These are the considerations that americans can’t remedy on their personal and ought to deliver up at the application councils. during the past, americans weren’t at ease asserting, “I’m pink this week.” They didn’t want their colleagues to understand. They believe been now not leveraging the verve of the scope and their colleagues.
We created an atmosphere the region it feels secure to stroll into a council meeting and say, “I’m pink.” It simply skill that you're off beam and could want the room’s aid, whether it’s a change-off with a colleague or on occasion the champion of the accurate management group, to procure lower back on course. surroundings that tone relieves power and stress, raises accountability, speeds up path corrections, and units expectations alongside the style.
here is where mutual believe faith and admire amongst groups are important. i will stutter at a application assembly, “i can’t procure that carried out for this release; it’s not possible.” Or, “My group says they checked out it 12 different ways, and it won’t travail this time.” but then i will offer to position it in the next liberate and require them, “What are the implications for you as a result of this choice?” and recognize they’ll reply candidly. That kind of trade-off and negotiation is excellent. I’ve worked on transformation and integration for two years, and that i truthfully don’t reckon there’s been one melodramatic second. There were many in shape debates, however it hasn’t revolve into terrible, with pointing fingers or a guilt video game. This lifestyle has allowed us to exist so a hit. they are using their crucial elements and mental power to remedy actual consumers issues and revise enterprise problems.
S+B: What concerning the fourth ingredient you outlined: communique?JORDAN: i will exist able to’t articulate satisfactory how valuable widespread and vital verbal exchange is. change inevitably leads to concern and uncertainty. The personnel exigency many snippets of verbal exchange, despite the fact that the leaders don’t believe low the solutions. They should reassure individuals, “it’s adequate” or “we’ll procure this.” After joining Symantec and constructing a world-category IT group with tons of of individuals everywhere, I begun publishing an inner weekly blog — simply a pair of paragraphs of valuable events or initiatives, recognition, calls to action, and news. I feel I’ve neglected four weeks in four years. on every occasion I ignored it, I instantly heard from my personnel, “where is the weblog?” people want to hear what’s happening. In an oblique course i'm creating a group in the IT firm. Infrastructure wishes to know what is occurring within the software space and vice versa. employees enjoy to comprehend their job is important, and it’s as much as leaders to clarify how it low fits collectively.
Bringing Cultures together
S+B: What became the cultural trade at Symantec enjoy from your standpoint?JORDAN: It [has been] huge. four years in the past, I doubtless would believe pointed out, “way of life is essential. but it surely’s no longer crucial.” these days, I feel travail on lifestyle is critical. Their company mission is to offer protection to the world. any individual in the commerce can lanky in towards that statement; it’s empowering, but you even believe to set dreams and exist pellucid on how you are going to satisfy that mission.
S+B: What other cultural considerations did you have?JORDAN: With acquisitions, you believe got different cultures to combine, enjoy having a blended household. Symantec, Norton, Blue Coat, and LifeLock low had distinct cultures. It’s valuable to bear an pains to set up the “new culture” that takes the better of the ultimate from each and every acquisition. This takes time, so it’s vital to headquarters of attention on the travail that may furthermore exist performed automatically. in case you’re prepared appropriately, and you create a mix of the personnel from distinctive companies, you Come to exist with a various crew and a culture with different perspectives and experiences. perhaps it’s the nature of IT, with a significant require and extent of labor, or how the groups were organized, however in their case, pretty much overnight, it grew to become immaterial the region a person got here from.
What mattered became that they showed up as a cohesive IT organization, solving Symantec’s advanced complications and dealing toward improving effectivity for their shoppers, companions, and employees. The travail will kind the subculture, exceptionally in case you low reckon enjoy you’re within the identical boat, and it will drive the stage of admire, believe, and credibility higher.
S+B: in case you had to recommend a corporation going via an identical changes, is there anything else noteworthy you’d parade them in regards to the transformation process that you just haven’t mentioned?JORDAN: believe fun successes, commonly. They managed the restructuring and acquisition whereas simultaneously operating the enterprise, with quarter-ends, monetary closes, and low the commonplace calls for on IT to race and role a multibillion-dollar company. The experience is long, and americans feel they’ll rejoice when it’s finished. however you’re by no means truly done. It’s going to exist eternal alternate continually. acquire time alongside a course to bear individuals suppose identified and valued. present reasonably priced celebrations or prepare a community experience. a advantageous course to give them the inducement and notion to proceed.
feminine management in technology
S+B: You’re one of the most sought after ladies in Silicon Valley, at a time when many tech companies try to raise their participate of female executives. How does this vicissitude Come up at Symantec?JORDAN: Their diversity initiative is a big precedence for their CEO, Greg Clark. It’s vital to contemplate male CEOs acquire this seriously. They’re those who ought to lead once they nascence to alternate deeply held thinking and biases. [Clark is active in CEO Action for Diversity and Inclusion, a coalition of commerce leaders launched in 2017 to address these issues more effectively. Tim Ryan, PwC’s U.S. chair, is the chair of the group’s steering committee.] Their CHRO, Amy Cappellanti-Wolf, is furthermore super-obsessed with this.
S+B: what is riding this alternate? Why now?JORDAN: One aspect, of route, is the broadening recognition of diversity concerns in the tech industry. The more youthful generation is additionally forcing change. Millennials believe about variety in a different way; they grew up going to school with people from distinct geographies and ethnicities, in addition to shifting gender norms and expectations. As they convey that intellect-set into their organizations, it leads to a reverse mentoring for the ease of us. The millennials are teaching us what it looks enjoy to no longer believe ingrained biases towards other agencies, and i custody for that.
at the moment, ladies bear up 26 p.c of the international workforce at Symantec, which is above accustomed for the trade. in keeping with Steve Morgan of Cybersecurity Ventures, girls signify 20 percent of the global cybersecurity body of workers and [that proportion] continues to develop.
additional, their most recent set of summer season interns believe been 60 % ladies. That’s much more suitable, however still no longer decent ample.
S+B: Is the gender vicissitude distinctive in technology than in other industries?JORDAN: it's, just since the percentage of men is so plenty larger. once I talk over with their banking or retail customers, as an instance, there are extra girls low over the place, in any respect tiers of the corporation. Of course, in practically any enterprise, the greater you proceed in the hierarchy, the reduce the percent of girls tends to be.
S+B: Do you feel that’s altering now?JORDAN: I’ve studied this for years. despite the fact some ladies cease advancing in their careers when they hit personal existence pursuits, no matter if it’s having dinky ones or caring for ageing parents, many continue to physiognomy challenges around want of mentorship, restrained entry to possibility, or feelings of isolation. They should create methods for individuals to travail that in shape life’s challenges and simultaneously open up a chance. again, millennials set an example. they're growing up in a global where every thing is a provider. they can procure some thing they want: software, meals, gasoline, a experience, clothing. They click on and it’s there. fast-ahead 10 years, and we’ll perhaps believe an open market of labor assignments based mostly merely on merit. I’ll acquire on a challenge that looks intriguing for one enterprise; after which Do yet another project for a unique enterprise. In that context, might exist ladies could believe greater access to possibility, will journey much less bias, and won’t opt out on the cost they're nowadays.
S+B: Does having a enhanced female presence bear a dissimilarity in the course an organization handles a change?JORDAN: You often examine that it does, since it is said that girls are typically more empathetic than men. but that may well exist a stereotype. To pressure transformation, you want distinctive considering, inspite of age, gender, ethnic historical past, sexual orientation, or another specific features.
What concerns most is the job they ought to do. i'm the CIO for Symantec. I don’t conceal my identification as a woman; I wear dresses, rings, and make-up, and that i definitely can individually relate to the steady challenges of a working mother with younger toddlers. besides the fact that children, the undeniable fact that I’m a female doesn’t hearten any of my choices as CIO.
The course forward for Cybersecurity
S+B: How would you characterize the result of Symantec’s transformation?JORDAN: Symantec now has two strategic company instruments. Their commerce enterprise approach is in response to Symantec’s integrated cyber-protection platform. On the consumer aspect, with the acquisition of LifeLock, we’ve dependent methods for americans to independently give protection to their identities and their privateness. We simply delivered Norton privateness supervisor, an app that helps consumers reckon and acquire manage of their privacy and protect themselves on-line. We are alive in a brand modern digital world the region americans are continuously sharing their own assistance, and that assistance should exist would becould very well exist mined for earnings. through this app, they present their consumers how you can give protection to their information and their privateness, for themselves and their families.
The enjoyable a piece of their fashion is that it addresses the historic fragmentation of the safety trade. Many CSOs believe said that they’re loaded up on security outfit in their atmosphere. truly, their recent internet possibility security report (ITSR) indicated that on common — in a broad commercial enterprise company — there are between 65 and eighty five safety equipment. Eighty-5 tools! Now that’s quite fragmented. I accord with Symantec is perfectly located to eradicate that complexity and augment effectivity by delivering their integrated cyber-protection platform. funds-smart, this carrier typically lowers fees for their purchasers — it’s simpler technically and it saves them cash.
We additionally know that consumer and enterprise safety are interrelated. If individual personnel revolve into extra alert about safety concerns and stroll in the door greater secured, with much less possibility of compromise, that makes the job of any CIO simpler.
S+B: How Do you music the external tendencies when it comes to threats?JORDAN: Symantec operates the area’s biggest civilian hazard intelligence community, and one of the vital complete collections of cybersecurity hazard options. They even believe thousands of engineers within the organization, including these working at once on the products, who are engaged in threat intelligence. Symantec is answerable for seeing and detecting issues before any person else does, and we’re the usage of that intelligence to forewarn others.
Cybercriminals are becoming smarter. If typical cybersecurity is enjoy locking the front door of your domestic, they’re finding how to Come in the side door, a window, or a crack in the molding. and that they’re regularly lingering undetected and placing out, just watching. You don’t even recognize they’re internal unless they act.
Cyber products now believe to believe a major amount of synthetic intelligence and computer discovering inbuilt. They must proceed to modern lengths to give protection to essentially the most elegant facts of an commercial enterprise, akin to expense card industry [PCI] statistics, credit card guidance, and now — with GDPR [General Data Protection Regulation] in repercussion — privateness statistics. In prior instances, a protection operations core analyst used to anatomize the information logs after a breach, looking for clues. today, they exigency to procure at that needle in the haystack a gross lot more directly.
S+B: How should still excellent administration exist pondering these concerns?JORDAN: protection represents a huge haphazard to any business. We’ve considered low too many cases the place, if it’s not managed neatly, it may well believe harmful implications. “Are they comfortable?” is a simple question. The reply is extremely advanced. as an instance, how Do you bear sure each worker is protection aware? What are you doing to steer pellucid of somebody from by accident leaving a laptop within the wrong vicinity?
“for those who fix your cybersecurity, you’re very nearly cleansing house; you now comprehend your infrastructure, functions, and data an dreadful lot stronger.”
In established, boards should disburse more time speakme about protection. In some ways, it is as censorious because the financials of a corporation. The safety pose should still not exist delegated to a subcommittee. each member of the board really must acquire into account the protection pose of their business. at the C-suite stage, cybersecurity is frequently assigned to the CIO or chief security officer, but the accountability of security has to exist broader. safety is a enterprise approach. just as with different enterprise thoughts, you ought to believe govt alignment, method, policy, conversation, and, of path, expertise.
It’s now not almost insurance plan. there is a expense and efficiency play concerned. Your legacy servers and techniques may procure used most effectual as soon as a quarter, however they sit down there day by day without a monitoring, featuring one other means for baleful guys to enter. for those who repair your cybersecurity, you’re basically cleansing residence; you now understand your infrastructure, applications, and facts a lot improved. that you could design your methods from the ground up to exist greater protection conscious, resilient, and more convenient to bear disburse of.
Amity Millhiser is vice chair of PwC and chief customers officer of PwC US. She is based in Silicon Valley.
art Kleiner is editor-in-chief of method+enterprise.
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Implementation of HA Solutions for Windows using VCS 4.1
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This chapter is from the book
Hardware, although often an afterthought in an SAP project, is an essential component of an SAP system. Hardware comprises the servers (think “data headquarters computers”), disk storage systems, network gear (such as routers, network switches, and security firewalls), and tape backup units low working together to create the infrastructure or base layer of an SAP system. If any one piece is overlooked or skimped on, it creates a feeble link or separate point of failure that may cause something down the road as simple as a one-time nagging glitch or as major as a string of significant system outages, costing your company precious dollars. When hardware purchases are addressed late in an implementation, inevitable budget cuts (yes, implementing SAP tends to exist more expensive than most companies estimate up front) often restrict purchasing what could believe been a robust and highly available system. forward planning will wait on you avoid this problem when designing the overall solution.
The major players in the SAP hardware marketplace sell systems that fitting low types of solution needs, from small/medium user platforms reflecting commodity solutions and low cost, to larger and highly resilient platforms capable of scaling on the flee to meet the changing or growing needs of thousands of users. Choosing a colleague simply based on title recognition is a advantageous region to start, to exist sure. However, acquire custody to investigate and compare hardware solutions from competitors that are truly apples-to-apples solutions. A million-dollar commodity hardware solution might champion the identical workload as a high-end proprietary system costing twice as much, but Do they offer the identical levels of availability, scalability, and flexibility your commerce needs to survive month-end closing? By the identical token, will saving a few dollars on hardware (or database software, for that matter) require the IT department to disburse more money every year on systems management, maintenance activities, and downtime for upgrades and patches?
We view server hardware as coming in three main initial acquisition “cost” classes or performance categories: minute or low, medium, and high (see design 4.1). Costs per server can orbit from a few thousand dollars to several million. Performance can vary as well, depending on the number of CPUs, amount of RAM, internal server architecture factors, champion for high-speed disk operations, and much more. Different hardware platforms are developed to champion various operating systems and levels of system availability. They differ in terms of configuration flexibility and on-the-fly adaptability too.
Figure 4.1 Servers for SAP Come in a variety of sizes and configurations.
Interestingly, a separate SAP solution may utilize servers from one, two, or low three categories. For instance, SAP solutions are commonly designed to leverage a high-end server for the database tier, a mid-tier server platform for the SAP central instance or applications servers, and perhaps very inexpensive servers to address web server needs, noncritical bolt-on solutions, and so on. Conversely, other SAP IT departments might pick to establish low their SAP components on only a few high-end servers that can exist carved up into partitions or virtual machines as necessary. And some small/medium businesses (SMBs) may pick to race SAP solely on low-cost servers (relying on SAP’s built-in application server horizontal scalability to withhold them out of anguish should their workload grow). In any case, overall system availability, a comprehensive total cost of ownership analysis (reflecting technology, people, and process costs over time as well as up front), and anticipated future commerce requirements should drive your hardware platform decision.
Several of the largest and certainly best-known hardware vendors disburse proprietary CPU chips in their servers and champion a proprietary OS as well. IBM’s PowerPC chip running AIX is a advantageous example, as are HP’s end-of-life PA-RISC and more simultaneous Itanium2-based IA64 platforms running HP-UX. exist sure to investigate your platform’s capacity to host other operating systems as well; this can exist advantageous down the road when you exigency to retire your SAP system and search to redeploy it internally rather than toss it in the dumpster. HP’s IA64 chips champion Windows, Linux, and OpenVMS, for example, whereas Sun’s latest offerings champion Solaris, Windows, and Linux.
Clearly the trend of late is around deploying low-cost servers based on commodity CPU chips from Intel and AMD (often referred to generically as “x64” platforms). HP and Dell are the biggest players in this market, though Sun offers a bit of election here as well. Interestingly, these platforms are growing more and more powerful each year, supplanting some of the bigger server platforms in the process. Commodity server figure factors continue to expand and provide IT departments with choice—from dense blades to slim-line “pizza box” designs to more traditional big-box designs. Meanwhile, hardware vendors in this space continue to develop high-availability, virtualization, and other technologies and solutions that wait on establish these servers on more of an equal footing with their proprietary counterparts. In low the excitement and hype surrounding these well-performing upstarts, though, acquire custody not to overlook trade offs. Low cost up front doesn’t always translate to low cost over a system’s lifetime, for example.
When purchasing servers and associated hardware for SAP, reckon investing in the high-availability features offered for the platform, even if an additional imbue is involved. Most servers offer redundant power supplies, redundant memory, disk array (RAID) controllers capable of running even after a disk drive fails, and champion for multiple network interfaces cards (NICs) to avoid failure of a network segment, network switch, or separate card. Leveraging these technologies will certainly augment the overall uptime of your SAP solution, typically adding only incremental cost in the process.
Server networks should exist configured in a redundant vogue as well. In many IT data centers, the network represents a major—and avoidable—single point of failure. Dual switches and the disburse of the aforementioned redundant NICs can liquidate or mitigate what otherwise could exist a major outage. Of course, these NICs and switches must exist properly and professionally installed, cabled, and configured to actually travail well; attention to high availability is just as valuable after the purchase as beforehand.
Disk Subsystem Hardware
Most server hardware vendors furthermore sell disk subsystems, which are essentially enclosures for multiple disk drives used by SAP and other applications to house the application’s database, its installation binaries or executables, and so on.
The most robust and well-performing disk subsystems today are in the figure of storage area networks (SANs) and to a lesser extent network-attached storage (NAS) systems. Similar to how servers are marketed, vendors sell low-tier, mid-tier, and high-end SANs and NAS devices. At a minimum, the storage chosen for SAP should champion redundant connectivity between the storage and the servers connected to it, so as to avoid a separate point of failure. RAID (Redundant Array of Inexpensive Disks) flush 0, 1, 5, or 10 should exist configured as well to protect against disk failures. As Table 4.1 suggests, different RAID levels provide various combinations of availability, cost, and performance.
Table 4.1. Disk Subsystem RAID Types, Advantages, and Disadvantages
Method of Availability
Advantages and Disadvantages
Spans multiple disks, low of which are available for storage. RAID 0 is distinguished when maximum space is needed, and it provides excellent performance as well. However, no disk redundancy is afforded, and it’s not viable for production systems.
Mirroring provides best-in-class performance and excellent redundancy, although it’s costly (a 500GB database requires a terabyte of raw disk capacity at minimum).
Disk striping with parity
Stripes data with parity, making for wonderful disk read performance, though to some extent a disk write penalty; excellent redundancy balanced by best-in-class low cost.
Disk mirroring and striping
Data is both striped and mirrored; best performance and redundancy, although this is the most costly fashion of providing disk subsystem availability.
High-end SAN storage typically supports advanced replication technologies, too, which can exist useful for disaster recovery purposes among other things. exist sure to contemplate into such capabilities—the capacity to copy data between remotely connected SANs or to create “snapshots” of SAP databases on the flee is useful in many different ways, from enabling rapid system backups, to allowing systems to exist cloned for offline testing and training, to supporting disaster and commerce continuity requirements in the wake of a ascetic data headquarters outage.
No result found, try modern keyword!The customer was looking for a comprehensive end-to-end solution to ensure they had answerable availability and 24/7 monitoring ... Year-to-date, through October 30, they believe repurchased roughly 4.1 mill...
Solutions provider takeaway: Exchange Server 2010's hardware and active Directory (AD) requirements are crucial considerations for solutions providers before installation and deployment. This chapter excerpt offers information on hardware requirements, such as the amount of reminiscence needed for an Edge Transport Server, and discusses how valuable AD sites and services are to Exchange Server 2010.
Exchange Server 2010 Hardware Requirements
Microsoft maintains a list of minimum hardware requirements to install Exchange Server 2010. For the latest list of requirements, proceed to https://technet.microsoft.com/en-us/ and search for "Exchange 2010 System Requirements."
Table 7.1 shows the minimum and recommended hardware requirements for Exchange Server 2010, as stated by Microsoft.
X64 architecture-based computer with Intel Processor that supports Intel 64 Intel Extended reminiscence 64 Technology (formerly known as Intel EM64T)AMD processor that supports AMD64 platformNote -- Intel Itanium IA64 processors are NOT supported.
Memory Edge Transport Server -- Minimum: 2GB. Maximum: 16GB.Recommended: 1GB per core (2GB Minimum, 8GB Maximum)Hub Transport Server -- Minimum: 2GB. Maximum: 16GB.Recommended: 1GB per core (2GB Minimum, 8GB Maximum)Client Access Server -- Minimum: 2GB. Maximum: 16GB.Recommended: 2GB per core (8GB Minimum, 16GB Maximum)Unified Messaging Server -- Minimum: 4GB. Maximum: 8GB.Recommended: 1GB per core (4GB Minimum, 8GB Maximum)Mailbox Server -- Minimum: 2GB. Maximum: 64GB.Recommended: 2GB plus 2-4MB per mailboxMultiple Roles (combinations of Hub Transport, Client Access, and Mailbox Server Roles) -- Minimum: 4GB Maximum: 64GB. Recommended: 8GB plus 2-4MB per mailbox.
At least 1.2GB on the arduous disk where Exchange Server 2010 will exist installed.An additional 500MB for each Unified Messaging language pack that will exist installed.200MB on the system drive.A arduous disk drive that stores the message queue databases on an Edge Transport server or Hub Transport server with at least 500MB.
Note:These hardware requirements from Microsoft are the bare minimum and should not exist used in best-practice scenarios. In addition, hardware requirements can change because of features and functionality required by the company, for example, the implementation of Unified Messaging voice mail services or clustering on an Exchange Server 2010 server can require more memory. observe Chapter 34, "Optimizing an Exchange Server 2010 Environment," for more tips and best practices on sizing the server for your environment.
Understanding the active Directory Requirements for Exchange Server 2010
An active Directory (AD) infrastructure running on Windows Server 2003 or Windows Server 2008 must exist in region before an organization can deploy Exchange Server 2010. Exchange Server depends on the services provided by AD to successfully role and the design and implementation of the AD environment can believe an colossal repercussion on the success of the Exchange Server deployment. Mistakes made in the planning or implementation of AD can exist costly and difficult to revise later.
If AD is already deployed, it is valuable that the team designing the Exchange Server infrastructure believe a solid understanding of the existing AD environment. Organizations with an AD infrastructure already in region exigency to evaluate how Exchange Server can fitting into their environment. If AD has not been deployed, the organization or team designing Exchange Server needs to end their implementation with a thought as to what their messaging infrastructure will contemplate like.
This section is designed to give a basic understanding of the AD infrastructure required to champion an Exchange Server 2010 implementation. Many facets are involved when planning a production AD infrastructure -- forest model, domain model, group policies and delegation of administration to title a few, and the information needed to design an AD infrastructure from halt to halt is beyond the scope of this book.
Some of the AD factors that should exist considered when deploying Exchange Server 2010 embrace the following:
Note:For in-depth guidance on designing, implementing, and maintaining an AD infrastructure, mention to Windows Server 2003 Unleashed, R2 Edition, by Sams Publishing (ISBN: 0-672-32898-4), or Windows Server 2008 Unleashed, by Sams Publishing (ISBN:0-672-32930-1).
Global Catalog Server Placement
As was the case in Exchange 2000 Server through Exchange Server 2007, Exchange Server 2010 requires a global catalog infrastructure to function. The global catalog maintains an index of the active Directory database for objects within its domain. Additionally, it stores partial copies of data for low other domains within a forest.
Just as important, Exchange Server relies on global catalog servers to resolve email addresses for users within the organization. Failure to contact a global catalog server causes emails to bounce, as the recipient's title cannot exist resolved.
Sizing a global catalog infrastructure and server placement is discussed in depth later in this chapter in the section entitled "Establishing a Proper Global Catalog Placement Strategy."
Active Directory Sites and Services
In Exchange Server 2003 and earlier, Exchange Server utilized dedicated routing topology for transporting messages throughout the organization. nascence with Exchange Server 2007, Microsoft redesigned the product to exist a "site-aware" application. This continues in Exchange Server 2010.
Site-aware applications are able to determine what site they (and other servers) belong to by querying active Directory. The site impute of low Exchange server objects is maintained by the Microsoft Exchange active Directory Topology Service. Additionally, Exchange Server 2010 servers utilize site membership to identify which Domain Controllers and Global Catalog servers should exist utilized to process active Directory queries.
The Exchange Server 2010 servers utilize active Directory site membership as follows:
Hub Transport Servers -- gather information from active Directory to determine mail routing inside the organization. When a message hits the Microsoft Exchange Transport service, the Hub Transport server resolves the recipient's information and queries active Directory to match an email address to the recipient's account. The result of this query includes the fully qualified domain title (FQDN) of the user's mailbox server.
From the FQDN, the AD site of the recipient's Mailbox server is determined and, if the Mailbox server is in the identical site as the Hub Transport server, the message is delivered. If the Mailbox server is in another site, the message is relayed to a Hub Transport server in that site, and the message is then delivered to the user's mailbox server.
Client Access Servers -- When a client access server receives a connection request from a user, it contacts AD to determine which mailbox server houses the user's mailbox and which site that server belongs to. If the mailbox server is in a different site, the connection is redirected to a client access server in the identical site as the mailbox server.
Mailbox Servers -- Query active Directory to determine which Hub Transport servers are located in their site. Messages are submitted to local Hub Transport servers for routing and transport.
Unified Messaging Servers -- Utilize active Directory site membership information to determine what Hub Transport servers are located in the identical site as the UM server. Messages for routing and transport are delivered to a Hub Transport server in the identical site as the UM server.
Forest and Domain Functional Levels
With each modern edition of the Windows Server and Exchange Server operating systems, modern functionalities are introduced. Some of these enhancements require that the active Directory infrastructure exist upgraded before you can acquire handicap of the modern capabilities. At times, these capabilities cannot exist implemented until low domain controllers in an environment believe been upgraded to the identical level.
To champion this, active Directory has Forest and Domain functional levels that determine what enhancements are enabled or disabled. By raising the functional flush of an environment, modern functionalities are enabled. By maintaining an older functional level, interoperability with older domain controllers is supported.
Forest Functional Levels
Windows Server 2003 supports three forest functional levels:
Windows 2000 autochthonous -- Required while any Windows Server 2000 domain controllers remain in your forest. Supports domain controllers running Windows NT 4.0, Windows 2000 server, and Windows Server 2003.
Windows Server 2003 Interim -- A special functional flush only implemented during NT 4.0 to Windows 2003 upgrades.
Windows Server 2003 -- low DCs in the forest must exist running Windows Server 2003, and low domains in the forest must exist at the Windows 2003 Domain functional flush before you can raise your forest functional flush to Windows Server 2003.
Windows Server 2008 supports three forest functional levels:
Windows 2000 autochthonous -- Supports Windows 2000, Windows Server 2003, and Windows Server 2008 domain controllers.
Windows Server 2003 -- Allows for a mix of Windows Server 2003 and Windows Server 2008 functional flush domains.
Windows Server 2008 -- Ensures low domain controllers in the forest are running Windows Server 2008 and low domains believe been raised to the Windows Server 2008 domain functional level.
Note:To install Exchange Server 2010, the active Directory forest functional flush MUST exist Windows Server 2003 or higher.
Windows 2000 autochthonous and Windows Server 2003 Interim modes are NOT supported.
Domain Functional Levels
Windows Server 2003 supports four domain functional levels:
Windows 2000 Mixed -- Allows Windows Server 2003 domain controllers to interoperate with other domain controllers running Windows Server 2003, Windows 2000 Server, and Windows NT 4.0.
Windows 2000 autochthonous -- Allows domain controllers running Windows Server 2003 to interact with domain controllers running either Windows Server 2003 or Windows 2000 Server.
Windows Server 2003 Interim -- Supports only domain controllers running Windows Server 2003 and Windows NT 4.0.
Windows Server 2003 -- Supports only Windows Server 2003 domain controllers.
Windows Server 2008 supports three domain functional levels:
Windows 2000 autochthonous -- Allows domain controllers running Windows Server 2008 to interact with domain controllers running either Windows Server 2008, Windows Server 2003, or Windows 2000 Server.
Windows Server 2003 -- Supports an environment comprised of a compund of Windows Server 2003 and Windows Server 2008 domain controllers.
Windows Server 2008 -- Only available after low domain controllers in a domain are running Windows Server 2008.
Note:To install Exchange Server 2010, the active Directory domain functional flush MUST exist Windows Server 2003 or higher for each domain in the active Directory forest that will house an Exchange Server 2010 server.
Windows 2000 Mixed, Windows 2000 Native, and Windows Server 2003 Interim modes are NOT supported.
Understanding elastic separate Master Operations Roles
Active Directory uses a multimaster replication scheme for replicating directory information between domain controllers; however, sure domain and enterprise wide operations are not well suited for a multimaster model. Some services are better suited to a separate master operation to obviate the introduction of conflicts while an Operations Master is offline. These services are referred to as Operations Master or elastic separate Master Operations (FSMO) roles.
FSMO roles can exist either "forestwide" or "domainwide." The forestwide roles consist of the Schema Master and the Domain Naming Master. The domainwide roles consist of the Relative ID (RID) Master, the Primary Domain Controller (PDC) Emulator, and the Infrastructure Master. A brief description of each is as follows:
Schema Master -- Maintains low modifications to the schema throughout the active Directory forest, as no other domain controller is allowed to write to the schema. The schema determines what types of objects are permitted in the forest and the attributes of those objects.
Domain Naming Master -- Maintains a list of the names of low domains in the forest and is required to add any modern domains (or to remove existing ones).
RID Master -- Allocates security RIDs to domain controllers to assign to modern AD security users, groups, or computer objects. RIDs are the piece of the Security Identifier (SID) that identifies an account or group within a domain. The RID master furthermore manages objects poignant between domains.
PDC Emulator -- Processes low password changes in the domain. If a user logon attempt fails due to a baleful password, the request is forwarded to the PDC emulator to check the password against the most recent one. This allows a user to log in immediately after a password change instead of having to wait for that change to replicate throughout the active directory.
Infrastructure Master -- Maintains security identifiers, GUIDs, and DNS for objects referenced across domains. This role is furthermore answerable for ensuring that cross-domain group-to-user references are correctly maintained.
When designing the FSMO role placement of an active Directory environment, the following best practices should exist considered:
If a domain has only one domain controller, that domain controller holds low the domain roles. However, this configuration is not recommended (even for smaller organizations), as it creates a separate point of failure.
The Schema Master and Domain Naming Master should exist placed on the identical domain controller in the root or placeholder domain. This server can (and should) furthermore exist configured as a global catalog server.
Place the RID and PDC emulator roles on the identical domain controller. If the load on this server justifies separating the roles, region them on domain controllers in the identical domain and AD site and ensure the two domain controllers are direct replication partners of each other.
As a general rule, the infrastructure master should exist deployed on a domain controller that is NOT furthermore a global catalog server. This domain controller should believe a direct connection to a GC server, preferably in the identical active Directory site. Global catalog servers hold a partial replica of every protest in the forest and the infrastructure master, when placed on a global catalog server, will never update anything as it does not hold any references to objects that it does not hold. There are two exceptions to this rule:
Single domain forest: In a forest with a separate AD domain, there are no phantoms and the infrastructure master has no travail to do. In this case, the infrastructure master can exist placed on any domain, including those that are furthermore global catalog servers.
Multidomain forests where every domain controller is a global catalog server. When every domain controller in a domain that is piece of a multidomain forest is configured as a global catalog server, there are no phantoms or travail for the infrastructure master to do. The infrastructure master can exist placed on any domain controller in the domain.
Note:As stated by Microsoft, to install Exchange Server 2010, the Schema master should believe "the latest 32-bit or 64-bit edition of the Windows Server 2003 yardstick or Enterprise operating system or the latest 32-bit or 64-bit edition of the Windows Server 2008 yardstick or Enterprise operating system."
Additionally, in each active Directory site where you end to install Exchange Server 2010, you must believe at least one Global Catalog server that meets the identical criteria.
Understanding How DNS and AD Namespace Are Used in Exchange Server 2010
The first step in the actual design of the AD structure is the conclusion on a common domain title system (DNS) namespace that AD will occupy. AD revolves around (and is inseparable from) DNS and this conclusion is one of the most valuable ones to make. The namespace chosen can exist as straightforward as companyabc.com, for example, or it can exist more complex. Multiple factors must exist considered, however, before this conclusion can exist made. Is it better to register an AD namespace on the Internet and potentially expose it to intruders, or is it better to pick an unregistered, internal namespace? Is it necessary to tie in multiple namespaces into the identical forest? These and other questions must exist answered before the design process can proceed.
Impact Forests believe on an Exchange Server 2010 Design
An AD forest and an Exchange Server organization are tightly integrated. Exchange Server relies on AD as its directory repository for mailboxes, mail-enabled objects, Exchange servers, and much more. An AD forest can only host a separate Exchange organization and an Exchange organization can only span one AD forest.
It is recommended that a separate AD forest should exist utilized to minimize complexity and administration when designing and implementing a company's Exchange Server implementation. However, there will exist times when a separate AD forest will not meet the company's business, security, or political requirements.
If multiple AD forests are necessary to satisfy the company's requirements, it must exist decided on which forest the Exchange organization will exist hosted. It is feasible to believe an Exchange Server reside in a separate forest, a dedicated resource forest, or to implement multiple Exchange organizations in multiple forests.
The Role of a Domain in Exchange Server 2010
After the AD forest structure has been laid out, the domain structure can exist contemplated. Unlike the forest structure, an Exchange Server 2010 organization can span multiple domains within the forest if needed. Therefore, a user mailbox, Exchange server, or other Exchange protest can reside in any domain within the forest where Exchange Server 2010 has been deployed. A company can end its domain model structure (single domain model or multiple domain model) based on their commerce and security requirements without a direct negative repercussion to the Exchange Server 2010 design.
While a separate domain model is often considered due to its simplicity, most organizations prefer the placeholder domain model. The placeholder domain model has an isolated domain serving as the root domain in the forest. The user domain, which contains low production user accounts, would exist located in a divorce domain in the forest, as illustrated in design 7.1.
FIGURE 7.1 The placeholder domain model.
The placeholder domain structure increases security in the forest by segregating high-level schema-access accounts into a completely divorce domain from the regular user domain. Access to the placeholder domain can exist audited and restricted to maintain tighter control on the censorious schema. The downside to this model, however, is the fact that the additional domain requires a divorce set of domain controllers, which increases the infrastructure costs of the environment. Smaller organizations may believe a difficult time justifying the extra infrastructure costs to provide the increased security, but whenever the budget allows, this model should definitely exist considered.
Planning a Proper Sites and Services Architecture
As stated earlier, one of the major features of Exchange Server 2007 and Exchange Server 2010 is the capacity to natively utilize active Directory Sites and Services for routing mail, rather than having to implement and maintain an independent routing topology using connectors. To acquire handicap of this capability, you must first remove low pre-Exchange Server 2007 servers from your environment.
If Exchange Server 2010 will exist installed into an existing Exchange Server 2003 organization, the administrators must configure routing group connectors to ensure that the Exchange Server 2010 servers are communicating to legacy servers.
For more information on coexistence of Exchange Server 2010 with legacy versions, review Chapter 15, "Migrating from active Directory 2000/2003 to active Directory 2008."
Administrators should exist alert of the best practices for designing a proper Sites and Services architecture to champion Exchange Server 2010. From a high-level perspective, within AD it is necessary for administrators to create sites, earmark subnets to sites, and then create site links between sites for communication to occur. Similar to Exchange 2000 and 2003, it is feasible to set up redundant links between sites and earmark costs to control communication priorities.
Active Directory Sites
The basic unit of AD replication is known as the site. Not to exist confused with physical sites or Exchange Server 5.5 sites, the AD site is simply a group of domain controllers connected by high-speed network connections. Each site is established to more effectively replicate directory information across the network. In a nutshell, domain controllers within a separate site will, by default, replicate more often than those that exist in other sites. The concept of the site constitutes the centerpiece of replication design in AD.
Associating Subnets with Sites
In most cases, a divorce instance of a site in AD physically resides on a divorce subnet from other sites. This conception stems from the concept that the site topology most often mimics, or should mimic, the physical network infrastructure of an environment.
In AD, sites are associated with their respective subnets to allow for the brilliant assignment of users to their respective domain controllers. For example, reckon the design shown in design 7.2.
FIGURE 7.2 Sample Exchange Server and Client site assignment.
In this example, Server-EX01 is a physical member of the 192.168.115.0/24 subnet. Server-EX02 and Client01 are both members of the 192.168.116.0/24 subnet. Based on the subnets, Server-EX01 will automatically exist assigned to the domain controller Server-DC01 in SITE01 and Server-EX02 and Client01 will exist assigned to the domain controller Server-DC02 in SITE02.
Using Site Links
By default, the creation of two sites in AD does not automatically create a connection linking the two sites. This kind of functionality must exist manually implemented by the creation of a "site link."
A site link is essentially a connection that joins together two sites and allows for replication traffic to rush from one site to another. Multiple site links can exist set up and should normally follow the wide area network (WAN) lines of your organization. Multiple site links furthermore assure redundancy so that if one link goes down, replication traffic has an alternate path.
Site link replication schedules can exist modified to fitting the requirements of your organization. If, for example, the WAN link is saturated during the day, a schedule can exist established to replicate information at night. This functionality allows you to easily adjust site links to the needs of any WAN design.
Exchange Server 2010 and Site Membership
After the AD site topology has been created, including adding the confiscate subnets to sites and creating site links between sites, an administrator can now acquire Exchange Server placement into consideration.
Similar to AD domain controllers, Exchange Server 2010 servers will exist associated with sites in AD based on their IP address and subnet mask. As stated earlier, there should exist at least one domain controller/global catalog server residing in each site that an Exchange Server 2010 server will exist in.
For more information on creating an Exchange Server routing topology, mention to Chapter 4, "Architecting an Enterprise-Level Exchange Server Environment."
Note:If an AD infrastructure already exists prior to the design of the Exchange Server 2010 environment, there might exist a exigency to bear changes to the AD routing topology to champion the Exchange routing requirements.
Establishing a Proper Global Catalog Placement Strategy
Another area of second is the design and placement of global catalog servers within the environment. The second of the global catalog server cannot exist overstated. The global catalog is used for the address list that users observe when they are addressing a message and by Exchange servers every time a message is delivered. If a global catalog server is not available, the recipient's address will not resolve when users address a message, and the message cannot exist delivered.
There should exist at least one global catalog server in every AD site that contains an Exchange Server 2010 server. The recommendation from Microsoft is as follows:
If active Directory is running on a 32-bit system, the recommendation is 4:1 -- for every four processor cores in your mailbox servers, you should believe one processor core in a global catalog server. For example, if you believe 2 mailbox servers, each with dual quad-core processors, that is 16 processor cores. You should believe at least 4 processor cores worth of global catalog computing, so 1 quad core server, or 2 dual core servers should Do the trick.
If active Directory is running on a 64-bit system, the recommended ratio is 1:8. However, you must believe enough reminiscence installed on the server to cache the entire active Directory database in memory. To substantiate the size of your active Directory database, contemplate at the size of the %WINDIR%NTDSNTDS.DIT file.
For optimization, end on having a global catalog server close to the clients to provide efficient address list access. Making low domain controller servers global catalog servers is recommended for an organization that has a separate AD domain model and a separate site. Otherwise, for multidomain models, low domain controllers can exist configured as global catalog servers except for the domain controller hosting the Infrastructure Master FSMO role.
Note:It is a best drill to believe a minimum of at least two global catalog servers within an AD infrastructure.
Installing Exchange Server 2010 Exchange Server 2010 server roles, prerequisites, high availability Exchange Server 2010 requirements: Hardware, active Directory Exchange Server 2010 role-based access control
Printed with license from Sams Publishing. Copyright 2009. Exchange Server 2010 Unleashed by Rand Morimoto, Michael Noel, Chris Amaris, Andrew Abbate and tag Weinhardt. For more information about this title and other similar books, gladden visit Sams Publishing.