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000-209 exam Dumps Source : SVC/Virtualization V.1
Test Code : 000-209
Test appellation : SVC/Virtualization V.1
Vendor appellation : IBM
: 180 actual Questions
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IBM SVC/Virtualization V.1
financial services computer Virtualization Market
international financial functions computing device Virtualization Market 2019 document offers incisive counsel in a circumstantial manner involving key aspects of the market that are expected to possess a computable affect on developmental possibilities of the market over the forecast length. The essential growth drivers, challenges, and tendencies prompting the market are examined fully. An in-depth qualitative and quantitative facts in relevance with the projected possess an effect on of those components on the market’s future extend possibilities are exhibited within the file.
Key gamers in the fiscal features laptop Virtualization items markets consist of Citrix, Toshiba, IBM, Huawei, Microsoft, Parallels, Dell, pink Hat, Ncomputing, Ericom application, Tems, VMware
Get access to sample pages@ www.marketresearchstore.com/record/international-fiscal-functions-computing device-virtualization-market-2018-by means of-392749#RequestSample
The record grants a complete panoramic view of the monetary capabilities desktop Virtualization Market. The primary strategy discusses via an affect of the market. This component to the document includes numerous preparations, definitions, the trade chain, and the quite a few stupendous aspects of the world market. This section too contains an entire evaluation of the diverse building plans and govt policies that possess an influence over the market, its can saturate assemblies and commercial tactics. The 2nd subdivision of the file enlists analytics available on the market on the foundation of its size in terms of value and extent.
organizations lined in the evaluation are profiled with insights reminiscent of items offered and requirements, product varieties, ability, production, charge, price, gross margin, and salary. trade analysis methods comparable to SWOT analysis are used to measure components corresponding to strengths, weaknesses, alternatives, and threats within the monetary capabilities laptop Virtualization Market. The record underlines the numerous merits of this market.
additionally, in this report, the aggressive landscape of the market has been displayed in a circumstantial method. during this section, the leading key gamers operating within the monetary capabilities desktop Virtualization Market possess been included as well. The analysis examine is an amalgamation of primary and secondary research, which allows for the readers and groups to strengthen and extend the figuring out of the objective market.
by using Product type, fiscal capabilities laptop Virtualization market is essentially fracture up into: Hosted virtual computing device (HVD), Hosted Shared computer (HSD)
by conclusion clients/software, monetary capabilities laptop Virtualization market document covers the following segments: Small & Medium company, giant organizations
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table of content material:
economic services computing device Virtualization Market analysis record 2019-2024
Chapter 1: fiscal capabilities laptop Virtualization Market OverviewChapter 2: world economic ImpactChapter 3: competitors by means of ManufacturerChapter 4: creation, salary (value) by passage of set (2019-2024)Chapter 5: provide (creation), Consumption, Export, Import through areas (2019-2024)Chapter 6: production, earnings (price), charge style by means of TypeChapter 7: evaluation by using ApplicationChapter 8: Manufacturing cost AnalysisChapter 9: Industrial Chain, Sourcing approach and Downstream BuyersChapter 10: advertising strategy analysis, Distributors/TradersChapter 11: fiscal features computer Virtualization Market effect elements AnalysisChapter 12: fiscal functions computing device Virtualization Market Forecast (2019-2024)Chapter 13: monetary capabilities computing device Virtualization Market
The sight at pursuits of this document are:
to investigate international fiscal features computing device Virtualization repute, future forecast, boom opportunity, key market and key avid gamers.To current the fiscal services desktop Virtualization progress in the united states, Europe and China.To strategically profile the necessary thing avid gamers and comprehensively resolve their building system and methods.To outline, represent and forecast the market by passage of product type, market and key areas.
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beneficial on the dates listed, IBM will withdraw uphold for here programs licensed under the IBM overseas application License settlement.
IBM TotalStorage® SAN volume Controller V1.1: September 29, 2006IBM TotalStorage SAN quantity Controller V1.2: April 27, 2007This announcement is for withdrawal of software steer handiest.
The SAN extent Controller V1 (5639-VC1) product and connected utility protection (5639-SS1 and 5639-SS3) order elements were up to now withdrawn from advertising availability, constructive August 26, 2005. seek counsel from utility Announcement 905-042 , dated February 15, 2005.
On or after those dates, you can not attain these courses directly from IBM. you can gain these programs on an as-accessible basis through IBM Remarketers.
alternative product counsel: For alternative product information, seek counsel from the substitute assistance section.
lower back to accurate
replacement courses and Part numbers possess been announced.
IBM TotalStorage SAN quantity Controller Storage application V2.1 replaces V1.x. The present V2.1, 5639-VCT, costs each AAS elements and Passport competencies® half numbers on a per terabyte (TB) basis with cumulative tiers. It replaces each the tiered skill pricing structure in V1 and the previous V2.1 per-terabyte pricing. consult with the product announcement at the backside of this Part for extra replacement product details.
The V1 product turned into no longer purchasable in Passport potential, despite the fact Passport potential half quantity replacements below V2.1 may well subsist elected, supplied the entire SAN quantity Controller Storage software account is migrated from AAS to Passport skills. To incite an account migration to Passport advantage, contact your IBM representative.
The announcement for SAN quantity Controller V2.1 (5639-VCT) listed below comprises per-terabyte with cumulative tiers for each AAS elements and Passport talents half quantity equivalents.
be aware: in many situations, distinctive portions of the brand original per-terabyte with cumulative tiers features or Part numbers are required to substitute every former V1 tiered-skill function.
The V1 Synchronous Peer to peer remote replica (PPRC) elements are re-named to IBM TotalStorage SAN quantity Controller Metro mirror in V2.1.
The existing V2.1 substitute product, 5639-VCT, too represents a web page (versus unique cluster) license for SAN quantity Controller. This capability that at the time of an entitlement renewal or other account transaction, terabyte administration means entitlements for replete (distinctive) SAN extent Controller clusters on the web site being upgraded to 5639-VCT should subsist mixed site-huge, earlier than determining the acceptable V2.1 renewal or original aspects in the cumulative tier structure. this is applicable too for Passport expertise half numbers under 5639-VCT web page pricing.
For a unique V1 cluster, expend the optimum skill entitlement from the reach of the V1 feature it's being changed (such as "up to 2 TB," "as much as 4 TB," "as much as 8 TB," and so forth) for each Virtualization, FlashCopy®, or PPRC role in the V1 cluster.
For discrete V1 clusters, fuse the highest potential entitlements for each and every feature, before opting for the applicable cumulative tier, feature, and quantity or Passport edge Part quantity and volume for the substitute/renewal website license. For blended V1 and V2.1 clusters on the web site, fuse for each characteristic the sum of the optimum entitled V1 capacities with the sum of the V2 entitled capacities for the very characteristic, to arrive at a site capability entitlement for that characteristic. Then select the applicable cumulative tier and feature or Passport abilities half quantity in line with that complete.
For exact alternative feature and Part quantity designations in ordering context, examples of cumulative tier ordering, and apposite phrases and conditions, argue with the announcement on the bottom of this area.
note: As indicated within the desk beneath, entitlement renewals under V2.1 in AAS are ordered from utility maintenance PID 5639-SSA.
the following replacement programs are available by passage of AAS:
Withdrawnprogram identification alternative program identity
5639-VC1 5639-VCT Product program
5639-SS1 5639-SSA 1-12 months Registration/Renewal5639-SSB 1-yr After License
5639-SS3 5639-SSC 3-12 months Registration5639-SSD three-12 months Renewal5639-SSE three-yr After LicenseContact your IBM industry ally or IBM representative for guidance in deciding on present entitlements.
For additional information, seek counsel from application Announcement 205-177 , dated July 28, 2005.
Technical aid: The question submission characteristic below IBMLink(TM) inquire of Questions - steer for SAN extent Controller Storage utility V1.1 might subsist withdrawn on September 29, 2006, and for SAN volume Controller Storage application V1.2 will subsist withdrawn on April 27, 2007.
The IBMLink ServiceLink library of answered questions and different technical information for these classes remains available.
confer with the utility capitalize web website for product steer counsel.
http://3.ibm.com/utility/assist/This announcement includes the cease of capitalize dates for these software products.
enterprise accomplice informationIf you're a direct Reseller - gadget Reseller buying items from IBM, you may too hyperlink without dilatory to enterprise companion guidance for this announcement. A PartnerWorld identity and password are required (use IBM identification).
Thomas trade replace
Server/storage virtualization and a tiered storage structure produced giant benefits for a big retailer.
with the aid of Dave Vellante and David Floyer
be aware: This case study is according to a Wikibon.org group consumer, and while the case is real, the identify of the business—CS1—is fictitious.
—while CS1, a huge retailer, was convinced with the efficiency and availability of its Tier-1 storage platforms (consisting exclusively of EMC's Symmetrix arrays), speedy boom of Tier-2 purposes (especially home windows-primarily based) and improved require for storage to capitalize the enterprise's growth had been developing enterprise constraints. exceptionally, the time emigrate original arrays to uphold CS1's three-12 months leasing system changed into tedious and expensive (5+ months and up to $50,000 per array).
CS1 determined to adopt an aggressive virtualization strategy for each servers and storage to ameliorate the pliability and price-effectiveness of its infrastructure. The enterprise is virtually 365 days into a 3-yr system to virtualize its total SAN infrastructure.
CS1's fashioned installing consisted of about 400TB of Symmetrix means split over two information centers, featuring unbelievable availability and efficiency. Two SANs linked storage to greater than 600 Unix and windows servers.
pain pointsCS1 leases device on a three-year basis. in consequence, each year arrays and servers are stirring out of, and into, the ambiance. This created three predominant considerations:
Time to migrate arrays averaged five months and required big planning as a result of migrations necessitated shutting down functions for a length of time that changed into disruptive to company users;
Migration charges surpassed $50,000 per array. Over the lifetime of a yardstick high-conclusion array this represented further charges (above the charge of long-established hardware and application) of $0.forty three for every $1 and;
The current Tier-1 storage changed into too elevated priced to subsist a default for replete information, implying a exigency for greater granularity in storage tiers.
An assessment of storage vital on the Tier-1 arrays indicated that pretty much 50% of the Tier-1 storage means was arrogate for Tier-2 placements, in keeping with the company's recovery aspect targets (RPOs) and recuperation time objectives (RTOs).
answer strategyCS1 changed into already an necessary proponent of VMware on the server side. The company launched into a 3-year project to virtualize nearly replete storage attached to the SANs the expend of IBM's SAN quantity Controller (SVC) virtualization platform to allow storage provisioning, migrations, and decommissioning with out impacting purposes.
CS1 has deployed IBM's DS4000 modular arrays at the back of the SVC to supply Tier-2 storage and has made it the default storage platform going forward. The enterprise has retained the Symmetrix arrays for Tier-1 storage and is stirring every one of these at the back of the SVC. CS1 is migrating its array-based storage administration application to Tivoli (see table, under).
Adoption issuesBecause the SVC is an in-band virtualization platform, CS1 had initial concerns that performance, availability, and statistics integrity would no longer meet person expectations. cautious trying out had to subsist accomplished on an software-by-software foundation to Make sure
efficiency of Tier-2 storage turned into arrogate for clients conditioned to Tier-1 efficiency; and
putting Symmetrix arrays behind the SVC didn't compromise efficiency, availability, and information integrity.
CS1 additionally created a original centralized neighborhood to allot facts units to storage tiers according to efficiency requirements. This neighborhood works with the traces of company to Make certain there is an arrogate company justification for putting records on Tier-1 storage; otherwise, records is positioned on Tier-2 systems.
BenefitsThe mission is one year in to a 36-month plan. despite a brace of hundred thousand greenbacks in hardware, software, capabilities, and internal personnel fee, the venture is money circulate-positive. Payback duration for the project turned into under 12 months. For the storage it has virtualized (about one-third of the SAN-connected inventory), CS1 has reduced storage migration time from a number of months to 5 days on common. With virtualization of each servers and storage, CS1 has greater and continues to foretell improvements in availability and time to provision a brand original virtual server with storage from weeks to minutes.
CS1 now estimates that with storage virtualization, for each dollar spent on hardware and utility acquisition, the extra fee for migrating arrays has declined from $0.43 to under $0.10. in addition, the useful cost per terabyte for Tier-2-class storage has been decreased through an constituent of three.
regardless of preliminary concerns, efficiency, availability, and integrity of arrays behind the SVC, including Symmetrix, possess not been a controversy in production environments. youngsters, the extra-annoying Tier-1 functions haven't yet been positioned behind the SVC.
ImplementationThe determine shows the CS1 implementation method. The enterprise desired to proceed to Make expend of the Symmetrix arrays as Tier-1 storage, however to circulate nearly replete of them in the back of the virtualization platform. The implementation system is to virtualize as an terrible lot of the storage as viable over three years. If the SVC can not address some of the extreme I/O requirements for Tier 1, CS1 has a fallback system to effect in accommodate a smaller pool of non-virtualized storage.
Organizational issuesCS1's approach is to Make IBM's modular disk arrays its default storage instruments. a discrete case must subsist made by using the company if Tier-1 storage is to subsist used. As there isn't any chargeback, CS1 had to subsist confident there were ample management controls in set to maneuver this policy. The enterprise is awfully concerned that its users possess satisfactory performance as the storage is moved to Tier 2. To assist this method, CS1 effect in vicinity a storage group amenable for putting records on the foremost tiers and for ensuring performance necessities are met by comprehensive checking out.
CS1 is in the system of enforcing a original efficiency and space monitoring and infrastructure monitoring mechanism, in keeping with Tivoli software. The storage community displays I/O efficiency and handles capability planning and efficiency planning. The goal is to implement apparatus that monitor the efficiency, and if whatever is irregular, to immediately open an incident record. The goal is to operate by passage of exception and automation. as an example, the Tivoli provisioning supervisor software is being implemented and scripted to automate commissioning and decommissioning of arrays.
CS1's long-time age goal is to automate storage requests and storage migrations the usage of a coverage-primarily based engine. The storage request would encompass the company requirements and necessities, and the coverage would decree where it goes, at the side of backup-and-archive criteria.
Many businesses possess concluded that front-conclusion (server) and lower back-conclusion (storage) virtualization are valuable and often a prerequisite for a pretty worthy implementation of tiered storage;
Virtualization is now equipped for customary adoption, with replete necessary gamers putting massive muscle in the back of the technology;
one of the most largest merits of virtualization is the potential to provision storage greater birthright away and migrate arrays in days as opposed to months. This reduces the prices of overlapping storage, delays buy of recent storage instruments, and drastically reduces fees;
A tiered storage system means that accountability for the preliminary and ongoing placement of storage should soundless subsist centralized; and
Storage and server virtualization are unbiased initiatives, however clients can profit huge benefits if they effect in accommodate the two collectively.
CS1 has applied a pretty worthy virtualization and tiered storage approach, and the pressures for creating further storage tiers would require an accelerated rate of adoption of virtualization and tiered storage. youngsters a potential vulnerable constituent of the strategy is soundless the degree to which CS1 can virtualize Tier-1 storage behind IBM's SVC, given the business's efficiency and availability necessities.
Dave Vellante and David Floyer are co-founders of The Wikibon venture, an open neighborhood of practitioners, consultants, and researchers dedicated to enhancing know-how adoption. The authors will too subsist contacted at firstname.lastname@example.org or email@example.com.
----------CS1's evaluation of IBM SVC proposal
ability to handle virtualization of effect in Tier-1 arrays
standard utility set
IBM Redbooks gold standard-follow publications
Doubts about availability and performance of Tier-1 arrays behind SVC
considerations about SVC scalability
considerations about consumer perceptions of Tier-2 performance
Friction from users pushed to Tier 2
----------Case sight at at-a-glance
CS1 is a retail company with an IT shop comprising mainframes and open techniques. In all, the enterprise has greater than 1 petabyte of storage effect in with about 40% vital on two storage networks aiding the enterprise's mission-vital functions. SAN storage had been exclusively in line with Tier-1 arrays, and CS1 essential a passage to reduce the fee of storage acquisitions and lessen complexities associated with migrations. three hundred and sixty five days into a three-12 months project, CS1 has saved a number of hundred thousand greenbacks and dramatically greater its time emigrate and provision storage. This payback came from a virtualized server and storage infrastructure that required observant planning and testing to ensure adequate provider tiers had been met.
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Steven S. Warren, Contributor
With the recent release of Microsoft Enterprise Desktop Virtualization, formerly known as Kidaro, Microsoft has added application virtualization to its product lineup.
Application virtualization is the process of taking a unique application and isolating it from the relaxation of the operating system. It can elope in its own sandbox, regardless of the OS, for example, Microsoft Office 2007 and Microsoft Office 2003, Internet Explorer 6 and IE 7 can replete elope simultaneously.
Application virtualization too makes applications very portable. I carry around a 16 GB glitter key with Microsoft Word, Firefox, Snag-it and other applications that were replete packaged using application virtualization. This allows me to toil with my favorite applications on any computer.
Desktop virtualization allows you to create a package that contains a replete desktop OS, which is useful to elope applications that aren't compatible with your current OS. Two examples of desktop virtualization are Citrix XenDesktop and Virtual PC, which is available as a free download.
Microsoft's desktop virtualization has been available, but until recently was missing a key piece of the desktop virtualization space: management. There was no effortless passage to manage desktop virtualization across a corporate network. To fix this, Microsoft bought Kidaro and repackaged it as Microsoft Enterprise Desktop Virtualization-V (MED-V).
Med-V leverages Virtual PC to provide an enterprise solution for desktop virtualization. Previously, you had to download and install Virtual PC to build images with no actual control on the corporate level. With Med-V, you can deploy the Med-V client and Virtual PC to desktop machines using yardstick propel technology. Additionally, you can propel out to desktop users an installation package that includes the client install of Med-V and Virtual PC. After the push, a Med-V agent sits in your taskbar.
Med-V too allows you to upgrade to Windows Vista on your corporate network and seamlessly deliver applications that elope previous versions of Windows for legacy applications. For example, you can elope Internet Explorer 6, 7 and 8 on Windows Vista while running a desktop virtualization solution on the sly. The entire virtual OS can subsist pushed out via a management tool.
The Med-V solution is comprised of a master "virtual PC" image that has replete applications and service packs loaded. You build a library of virtual images that are stored on an IIS server. replete deployment and creation occurs on a Management Server, which too has a Management Console that enables you to control replete images from a repository.
Med-V system requirements involve the following:
A management server loaded with Windows Server 2008 (standard or enterprise)
4 GB RAM
Management server connected to an dynamic Directory domain
Image repository (IIS Web server)
Optional reporting database (SQL Server Express, yardstick or enterprise)
On the client side, the following is needed:
Windows Vista SP1 (32-bit, 2GB RAM) or Windows XP (32-bit, 1 GB RAM)
Virtual PC 2007 SP1 is required on either platform. Med-V supports guest OSes with Windows XP SP2 and SP3 and Windows 2000 SP4 (both are only supported on the 32-bit platform).
In my initial testing of Med-V, I was very pleased with what it had to offer. I downloaded the Desktop Optimization pack from my MSDN subscription and was working with the software within an hour. If you accomplish not possess a current MSDN subscription, Med-V is only available to enterprise customers with Microsoft Software Assurance who purchase the Microsoft Desktop Optimization Pack.
It was effortless to propel applications to a host start menu. I too liked the Web browser redirection feature. My host OS was Windows Vista SP1 and my virtualized desktop OS was Windows XP SP3. Windows Vista had IE 8 loaded and my virtualized desktop OS had IE 6. With the management console, I was able to specify what website I wanted to automatically open in IE 6. Printing was too effortless within the desktop virtual machine. You can print to a local printer in your virtualized OS and it redirects to your host printer.
With Med-V, Microsoft now offers a well-rounded desktop virtualization platform that allows for enterprise management. By combining Med-V with Hyper-V and App-V -- formerly Softgrid -- gives you a robust virtualization alternative to VMware's products.
ABOUT THE AUTHOR:Steven S. Warren is a freelance writer with a passion for learning. He is the author of The VMware Workstation 5 Handbook and is a Microsoft MVP. When he is not writing, he is spending time with his family and friends. You can too find him on Twitter and LinkedIn.
As you know, virtualization software allows you to elope multiple virtual machines on the very physical host. Each virtual guest runs in a divide environment so errors with the operating system or application will not recall down other guests running on the very physical host.
Often minute and medium businesses require application functionality similar to enterprise businesses; they just accomplish it on a smaller scale. These applications might involve file and print servers, e-mail servers, databases and Web servers. Smaller companies may possess a unique server running replete of these applications. Even in this scenario, companies can capitalize from virtualization for security reasons alone.
Additionally, server virtualization can capitalize heighten security, Make restores quicker, ameliorate weakness tolerance and reduce server maintenance costs. Aslo observe the Server Virtualization White Paper.
Let’s assume that the server is running Exchange 2003 and Outlook Web Access (OWA). With a unique server, the OWA server is the very server that too stores the company’s e-mail, database, files and other valuable information. If a hacker is able to compromise the OWA server, they will possess access to the entire server, not just OWA, because replete of the data resides on the very server.
Larger companies typically install a dedicated front-end server that only handles OWA traffic and does not contain any mail databases or other information. If a hacker manages to hack this machine, they soundless possess to compromise the back-end Exchange Server in order to access any data.
In this single-server scenario, you could set up an Exchange server as a virtual server that is accessed from the Internet. A smaller company would capitalize from having a dedicated front-end server without the overhead of purchasing a divide server. If the company is hosting its own Web site this OWA front-end server could too double as a Web server. Only the Web page information would reside on this virtual server, not any of the company’s captious data files.
Simplified Bare-Metal Restores
In this single-server scenario, if the server is running Windows Server with dynamic Directory it is the only domain controller (DC). If you’ve ever had to execute a bare-metal restore of a unique server that was acting as a unique DC and had other applications running on it fancy Exchange and SQL Server you know this is a complicated and challenging process. Virtualization can capitalize in this district as well.
There is one file for each virtual guest’s arduous drive as well as a configuration file that is stored on the host server. When a server is virtualized a consistent generic hardware platform is created for the virtual server guest regardless of the physical hardware. This means that any virtual guest can elope on any server host, because the hardware platform is always the same.
A common backup strategy is to net an image backup of replete of the virtual server guests running on the host over the weekend. A script can subsist created to shut down the virtual server guests on the host and then these files can subsist backed up to tape or copied to a different location on the host server. During the week, differential backups are performed on each virtual server guest.
In order to restore any virtual server, you must restore the latest image backup of the virtual server and then elope the latest differential restore. Because the weekend backups are essentially an image backup of the server, you don’t possess to worry about going into dynamic Directory Server Restore mode or recollect not to Make the server a domain controller during the recovery process of the DC.
If the host server entirely crashes you would possess to obtain a original server, install the host operating system, install the tape backup software, catalog the tape and then restore your virtual server images and virtual server software. Assuming that you possess each server virtualized by application, you could restore the most captious servers first. This would allow your users to gain access to these captious services without having to wait for the entire server to restore.
Reduced Maintenance Overhead
Virtualization can too reclaim you significant time when you possess to bring up a original server. They suggest staging server images with the different operating systems you may need. This can reclaim you at least an hour or more of setup time when you possess to bring up a original server.
For example, you can build an image of Windows Server 2003 with the latest service pack and chafed´ fixes, but don’t associate the domain. When you exigency to build a original server, you can copy this virtual server disk file on the host to a different location and rename it. Then you can create a original virtual server on the host and add in the virtual disk you just copied. When you start the virtual server, replete you possess to accomplish is rename the server, associate the domain, and install the latest chafed´ fixes. This entire process can subsist completed within 15 minutes, compared with an hour or more to build the server from scratch.
In a minute company you may exigency to elope computers with different operating systems that usually require divide servers. With virtualization you can elope virtual servers with different operating systems on the very physical host.
In the minute and medium market space VMware’s VMServer has the best uphold for guest OSes. You can elope almost any Microsoft OS as well as a wide variety of Linux and Unix OSes on the host server, potentially eliminating the exigency to purchase additional divide servers.
Multiple Hosts Will ameliorate weakness Tolerance
Most of the previous scenarios assume that the company has a unique server; thus, the unique point of failure is not an issue because virtualization will not lessen the weakness tolerance of the server. If a unique server fails, virtualized or not, the company will travel down.
But what if your company has more than one server? Let’s assume that a company has nine servers that elope various applications. It may subsist feasible to consolidate these servers onto three physical hosts and soundless provide weakness tolerance if one of the hosts is lost.
If the servers are due for upgrades, instead of purchasing nine original servers, you may subsist able to consolidate three virtual server guests onto one physical host. Of course, these servers will possess more processor, remembrance and disk capacity than single-purpose servers. In this multiple-server scenario, you can even configure the virtual guests as “warm” guests on a different host server.
By combining the power of Windows Server 2003 R2’ Distributed File System Replication (DFSR) and virtualization you can easily stagger virtual guests to a different host in the event of a server crash.
Assuming you execute an image backup of replete of the virtual server guests on the weekend and elope differential backups throughout the week, you can stagger the virtual server guests to a different host and regain the servers faster than if they were running on dedicated machines.
Over the weekend you can copy replete of the server guest files running on a host to a folder that is replicated with DFSR. DFSR will then replicate these guest files to a different host server.
DFSR has two features that Make it ideal to replicate virtual server guest files: remote differential compression (RDC) and cross-file replication (CFR). RDC will examine a file and only replicate the changes made to the file to a remote server.
Cross-file replication examines a file and searches for files that are available locally to create the desired file. This lends itself very well to replicating virtual server guest files because most of the information in the file remains static and they possess a significant amount of the very information stored in them. Although the files themselves can subsist quite large, the differences in the files on a weekly basis may only subsist between 100MB to 3GB.
After the initial replication, the actual time to replicate the virtual guest files should subsist short. You can create the virtual server guests on the other hosts, but leave them down and only bring them up if you possess a problem with one of the host servers.
In this three-host-server scenario, let’s assume you lose host server A, which has three virtual servers running on it. Assuming that you already possess the virtual guest files replicated to the other two host servers, you could bring up two guests on server B and one guest on server C. Then you would exigency to restore the latest differential backup to net the servers as current as possible.
If you design your server host farm with this in mind, Make confident to possess enough processor, remembrance and disk capacity to handle the failure of one host server. If you accomplish lose a host server and expend this strategy, you should subsist able to bring up replete three guests within a few hours or possibly even faster, depending on how long it takes to restore the last differential backup.
The major drawback to this strategy is the additional storage required to retain “warm” virtual server guest files on the other host servers. This virtual-server configuration too lends itself very well to having a remote catastrophe recovery warm site or other remote location. Instead of copying the files to a local server, you could expend DFSR to replicate the virtual server guest files to a remote server.
Of course, there are some drawbacks to virtualization. One of the biggest is a potential lessen in weakness tolerance. But if you possess multiple hosts and copy the virtual server guest files to other server hosts, you can bring up the virtual server guests on different hosts if one of the servers crashes.
With Virtual Server 2005 and VMware Server a guest server can possess a maximum of 3.6GB of memory. If your server requires more than that it shouldn’t subsist virtualized.
You will probably exigency more remembrance on the host server and an OS that is capable of addressing this remembrance if you system to host more than a few virtual server guests. Assuming that you system to elope four virtual server guests on a server host, roughly 6GB to 10GB of remembrance on the host is necessary. This, of course, depends on the remembrance requirements of each virtual server guest.
Microsoft Provides Guidance on Windows XP Mode
By Kurt Mackie
Microsoft released additional resources last week for IT pros planning to expend the original desktop virtualization solution in Windows 7 known as "Windows XP Mode," which can now subsist downloaded for free as a complete product.
The XP Mode resources involve installation instructions and release notes, plus a steer for deploying XP Mode and scripts. In addition, Microsoft produced a video that illustrates how to deploy XP Mode in corporate environments, which is available here.
Walk-through guides showing how to customize XP Mode in a step-by-step process, written by Microsoft MVP Shawn Brink, can subsist accessed here.
Microsoft describes XP Mode as useful for smaller organizations, allowing them to switch to the Window 7 operating system while continuing to elope legacy Windows XP-based applications. For larger organizations that exigency centralized management of multiple PCs, Microsoft recommends using its Microsoft Enterprise Desktop Virtualization app, or MED-V, which is Part of the Microsoft Desktop Optimization Pack (MDOP).
Microsoft just released MDOP 2009 R2 for Windows 7. Software Assurance licensing is required to expend MDOP tools, although Microsoft TechNet and MSDN subscribers can evaluate it without additional cost. The original MDOP release includes MED-V 1.0, but Microsoft is working on a service pack update of this desktop virtualization app. Microsoft expects to release a beta of MED-V 1.0 Service Pack 1 by year's end, with the final SP1 version expected in "the first quarter of calendar year 2010," according to Microsoft's MDOP blog.
XP Mode works in conjunction with the Windows Virtual PC runtime engine and it only works with certain Windows 7 editions, such as Professional, Ultimate and Enterprise. Both applications can subsist downloaded here. cease users running XP Mode will net a complete XP SP3 desktop environment, which runs on top of the Windows 7 desktop. XP Mode only supports the 32-bit version of XP SP3.
An necessary restriction on XP Mode is that the computer running it has to possess built-in hardware virtualization turned on, which is a feature on AMD, Intel and VIA Technologies chips. Older PCs won't possess this capability, but some original PCs too exigency hardware virtualization. IT pros can expend Microsoft's hardware-assisted virtualization detection tool to check for the capability. Even if hardware virtualization is present in the chip, users possess to check that this feature is enabled in the computer's BIOS, as Microsoft describes here.
Microsoft says that some older XP applications may soundless elope on Windows 7. The company provides the Microsoft Application Compatibility Toolkit 5.0 to capitalize assess whether you will want to elope a legacy app directly on Windows 7 or in XP Mode.
Another consideration to running XP mode is maintenance and security. XP Mode's desktop virtualization means that IT pros possess to maintain two systems: the Windows 7 host OS and the XP Mode guest OS. Similarly, patching, updates and anti-virus software exigency to subsist applied to both systems. Microsoft recommends turning on Windows Update and enabling automatic updates for XP Mode's guest OS or using WSUS to retain the virtual machines (VMs) updated.
Some anti-virus software does not provide coverage for XP Mode's virtual machine. A feasible solution is to expend Microsoft Security Essentials for the guest OS, as Microsoft has said that it will toil with XP Mode. This free anti-virus software was released late last month, but is purportedly aimed at just the consumer market.
IT pros should too configure the Windows firewall in the XP Mode virtual machine separately from Window 7's firewall. However, it's feasible to expend Group Policy to manage the firewall configurations across both OSes if "you associate Windows XP VMs to the domain," according to the XP Mode guide.
XP Mode can subsist distributed across computers using Sysprep.inf, available with Microsoft's Windows XP SP3 Deployment Tools. IT pros should build virtual arduous disk images of XP Mode and then deploy them to the PCs running Windows 7. If you don't elope Sysprep, "every copy of the image will possess the very security ID and the very computer name," according to Microsoft's "Deploying Windows XP Mode" guide.
The steer too recommends that IT pros not involve XP Mode in Windows 7 images. Doing so produces very big images that possess to subsist maintained with every XP Mode update. Instead, the steer recommends first installing Windows 7 and Windows Virtual PC on each computer to elope XP Mode, and then deploying XP Mode to those computers.
IT pros can configure XP Mode depending on how they want to expend it and can partake components between the host and guest OSes. The sharing of components allows features such as file and drive sharing, as well as clipboard sharing.
Configuration of XP Mode can subsist done by specifying one of three modes: basic, enhanced and virtual applications modes, according to a Microsoft blog. The blog suggests that enhanced and virtual apps modes are "preferred for industry desktops." The basic mode is more for developer testing scenarios and limits the integration of features between the host and guest OSes to the basics, such as shared USB, mouse and keyboard support.
Enhanced mode is the default setting of XP Mode. One capitalize of using the enhanced mode is that it saves user credentials so that a user doesn't possess to log in to access the guest OS. Those wanting replete integration between host and guest OSes can expend the virtual applications mode. One capitalize of virtual applications mode is that it integrates XP Mode's applications with the Start menu in Windows 7.
Kurt Mackie is senior advice producer for the 1105 Enterprise Computing Group.