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000-191 exam Dumps Source : pSeries AIX System Administration
Test Code : 000-191
Test appellation : pSeries AIX System Administration
Vendor appellation : IBM
: 154 true Questions
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IBM pSeries AIX System Administration
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IBM Debuts Beefed-up AIX
AIX 5.2 elements dynamic LPAR and capability help on exact capabilities.
via Stephen Swoyer
IBM Corp. unveiled an update to its AIX 5L working apparatus on Tuesday. The replace introduces original features, equivalent to dynamic ratiocinative partitioning (LPAR) and capacity help on demand, to colossal Blue’s Unix platform.
AIX 5L edition 5.2 (AIX 5.2) boasts an greater implementation of IBM’s LPAR technology that enables device operators to dynamically allocate device components—together with processors, remembrance and storage—to discrete partitions with out rebooting the system.
"[W]e acquire taken the LPAR means that changed into in AIX version 5.1 and prolonged it another stage such that servers which are partitioned can acquire substances introduced to them on the waft whereas they’re running workloads, with out that server or partition having to be introduced utter the way down to accommodate these elements," explains Mike Harrell, AIX product marketing manager with IBM.
In AIX 5.1, Harrell says, gadget operators must first allocate or de-allocate materials to an LPAR and then reboot it before adjustments can Take impact. "It turned into a static implementation [in AIX 5.1]," he concedes.
IBM’s original dynamic LPAR technology includes a extra granular implementation. The latest rev of AIX, for example, can uphold LPARs of a solitary processor with 256MB of RAM (AIX 5.1 required a minimum of two processors per LPAR). IBM’s the most efficient pSeries 690 server can uphold a optimum of 32 vigour 4 processors, which Harrell describes as a "hardware design element" and never a dilemma of AIX.
AIX 5.2’s dynamic LPAR know-how is managed utterly in utility, to the extent that numerous instances of the AIX operating atmosphere are distraught from the underlying pSeries hardware that powers them—a topology that Harrell delivers "does sound a remarkable deal devotion VM on the mainframe." utter things considered, he continues, IBM borrowed substantially from its mainframe skills when it designed the brand original AIX. "The applied sciences that you’re seeing here … for AIX 5.2 are applied sciences that we've migrated down from the mainframe into their AIX operating system."
in accordance with Gordon Haff, an analyst with consultancy Illuminata, IBM competitors comparable to solar Microsystems Inc. and Hewlett-Packard Co. at the minute supply similar partitioning capabilities of their excessive-end Unix servers. because of changes within the way each vendor procedures ratiocinative partitioning, Haff stresses, it’s complicated to gain a sound evaluation between their applied sciences. solar’s approach, for example, helps at the very least two processors per ratiocinative partition, however, Haff says, here is on account of a "hardware constructing block" design that seeks to maximise benchmark gadget availability and recoverability. "It’s a miniature bit complicated to declar A is enhanced than B is stronger than C, however i will be able to narrate that [the original version 5.2 release] brings AIX to be roughly on par with what the different Unix carriers are providing."
yet another mainframe-like expertise that has trickled birthright down to AIX is capability help on Demand, a facility that allows consumers to automatically purchase and set up additional processing horsepower as their workloads dictate. Many AIX shoppers buy pSeries hardware populated with further energy four chips that they "liberate" at a later date to extend their means. faculty help on exact can facilitate provisioning of this type, Harrell explains: "they can without retard add original processors without bringing the system down."
moreover, skill help on exact can drudgery in tandem with IBM’s autonomic computing applied sciences to preserve the reliability and availability of pSeries hardware, Harrell says. "We appellation it dynamic processor sparing, [in which] the operating apparatus is continuously checking below the covers for the health of the gadget. If … [the operating system] detects that a processor is getting unwell … apacity on exact will reach into a pecuniary institution of processors that are installed on the gadget however don't seem to be on-line [and bring up a wholesome processor]."
AIX 5.2 boasts original enhancements to the Workload manager fraction IBM first shipped in 1999. directors can now configure time-based policies for AIX workloads. furthermore, Hamrell says, AIX 5.2 points a utility enhancement that polls the gadget for conditions that could trigger a CheckStop mistake and attempts to eliminate them.
Illuminata’s Haff speculates that IBM’s pile effort "in fact shows [its] roots to a certain degree as a result of [its] approach is terribly an dreadful lot rooted in what [the company has] done within the mainframe in the past." at the identical time, he makes it practicable for, AIX 5.2 nonetheless isn’t "as bendy as mainframe partitioning," which helps sub-CPU partitioning. adds Haff: "You nevertheless acquire minimum of one CPU per ratiocinative partition."
In AIX 5.3—due someday birthright through the primary half of 2004, and able to exploiting enhancements to the vitality 5 microprocessor—IBM is anticipated to convey sub-CPU partitioning capabilities.
IBM Introduces original Clustering application
In a related announcement, IBM unveiled version 1.three of Cluster gadget administration, a clustering administration device that may manage both AIX clusters operating on pSeries hardware and Linux operating on xSeries Intel hardware. "This cluster systems administration will manage a combined set of AIX or xSeries [systems]," Hamrell acknowledges. "It’s in a position to concurrently manipulate Unix loads and Linux hundreds operating collectively."
In September, IBM cast an settlement with Linux supplier pink Hat to thrust Linux across its eServer product line. To that conclusion, Harrell continues, IBM will interpolate Linux choices for pSeries by means of the discontinuance of 2002.
"We’re introducing the skill here to manipulate blended Linux and AIX environments, but we’re not completed. It’s their goal to advertise original pSeries product offerings before the conclusion of this yr, and much more in the next [year], that are designed to hasten Linux in a local kind of environment [on pSeries hardware]," he concludes.
Stephen Swoyer is a Nashville, TN-primarily based freelance journalist who writes about technology.
if you're operating an AIX-primarily based super from IBM, you could be attracted to this tidings from Timothy Prickett Morgan at the Register
for less than the 2d time due to the fact that great Blue entered the Unix marketplace for true in February 1990 with the launch of the RS/6000 line of workstations and servers, the industry is letting shoppers who expend its vigor-based servers Take a future AIX free up for a verify constrain in an open beta application.
It’s an open beta, and you can Get the code birthright here. The capture is that the download settlement prohibits you running the OS in creation.
AIX 7 will hasten on any computing device in response to the PowerPC 970 (be vigilant that one, which was used in the initial IBM blade servers?) as well as on pSeries, device p, and vitality programs machines that gain expend of Power4, Power4+, vitality 5, Power5+, Power6, Power6+, and Power7 chips. (most likely any of the iSeries and apparatus i machines, which expend IBM’s OS/four hundred and i proprietary operating systems, that supported AIX interior ratiocinative partitions can additionally hasten the AIX 7 beta code, too, however IBM doesn’t narrate this.)
greater about the software and what features are in the original OS in article linked above.
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IBM Debuts Beefed-up AIX
AIX 5.2 features dynamic LPAR and capacity upgrade on exact capabilities.
By Stephen Swoyer
IBM Corp. unveiled an update to its AIX 5L operating system on Tuesday. The update introduces original features, such as dynamic ratiocinative partitioning (LPAR) and capacity upgrade on demand, to colossal Blue’s Unix platform.
AIX 5L version 5.2 (AIX 5.2) boasts an enhanced implementation of IBM’s LPAR technology that permits system operators to dynamically allocate system resources—including processors, remembrance and storage—to discrete partitions without rebooting the system.
"[W]e acquire taken the LPAR capability that was in AIX version 5.1 and extended it one more smooth such that servers that are partitioned can acquire resources added to them on the waft while they’re running workloads, without that server or partition having to be brought down to accommodate those resources," explains Mike Harrell, AIX product marketing manager with IBM.
In AIX 5.1, Harrell says, system operators must first allocate or de-allocate resources to an LPAR and then reboot it before changes can Take effect. "It was a static implementation [in AIX 5.1]," he concedes.
IBM’s original dynamic LPAR technology comprises a more granular implementation. The newest rev of AIX, for example, can uphold LPARs of a solitary processor with 256MB of RAM (AIX 5.1 required a minimum of two processors per LPAR). IBM’s top-of-the-line pSeries 690 server can uphold a maximum of 32 Power 4 processors, which Harrell describes as a "hardware design point" and not a limitation of AIX.
AIX 5.2’s dynamic LPAR technology is managed entirely in software, to the extent that multiple instances of the AIX operating environment are distraught from the underlying pSeries hardware that powers them—a topology that Harrell grants "does sound a lot devotion VM on the mainframe." utter things considered, he continues, IBM borrowed extensively from its mainframe expertise when it designed the original AIX. "The technologies that you’re seeing here … for AIX 5.2 are technologies that they acquire migrated down from the mainframe into their AIX operating system."
According to Gordon Haff, an analyst with consultancy Illuminata, IBM competitors such as Sun Microsystems Inc. and Hewlett-Packard Co. currently provide similar partitioning capabilities in their high-end Unix servers. Because of differences in the way each vendor approaches ratiocinative partitioning, Haff stresses, it’s difficult to gain a sound comparison between their technologies. Sun’s approach, for example, supports a minimum of two processors per ratiocinative partition, but, Haff says, this is as a result of a "hardware pile block" design that seeks to maximize overall system availability and recoverability. "It’s a miniature bit difficult to narrate A is better than B is better than C, but I can narrate that [the original version 5.2 release] brings AIX to be roughly on par with what the other Unix vendors are offering."
Another mainframe-like technology that has trickled down to AIX is Capacity Upgrade on Demand, a facility that makes it practicable for customers to automatically purchase and deploy additional processing horsepower as their workloads dictate. Many AIX customers purchase pSeries hardware populated with additional Power 4 chips that they "unlock" at a later date to expand their capacity. Capacity Upgrade on exact can facilitate provisioning of this kind, Harrell explains: "They can quickly add original processors without bringing the system down."
Moreover, Capacity Upgrade on exact can drudgery in tandem with IBM’s autonomic computing technologies to safeguard the reliability and availability of pSeries hardware, Harrell says. "We muster it dynamic processor sparing, [in which] the operating system is constantly checking beneath the covers for the health of the system. If … [the operating system] detects that a processor is getting sick … apacity on exact will reach into a bank of processors that are installed on the system but are not online [and bring up a wholesome processor]."
AIX 5.2 boasts original enhancements to the Workload Manager component IBM first shipped in 1999. Administrators can now configure time-based policies for AIX workloads. In addition, Hamrell says, AIX 5.2 features a software enhancement that polls the system for conditions that could antecedent a CheckStop mistake and attempts to eliminate them.
Illuminata’s Haff speculates that IBM’s evolution effort "really shows [its] roots to a certain degree because [its] approach is very much rooted in what [the company has] done in the mainframe in the past." At the very time, he allows, AIX 5.2 quiet isn’t "as resilient as mainframe partitioning," which supports sub-CPU partitioning. Adds Haff: "You quiet acquire minimum of one CPU per ratiocinative partition."
In AIX 5.3—due sometime during the first half of 2004, and capable of exploiting enhancements to the Power 5 microprocessor—IBM is expected to deliver sub-CPU partitioning capabilities.
IBM Introduces original Clustering Software
In a related announcement, IBM unveiled version 1.3 of Cluster System Management, a clustering administration appliance that can manage both AIX clusters running on pSeries hardware and Linux running on xSeries Intel hardware. "This cluster systems management will manage a mixed set of AIX or xSeries [systems]," Hamrell acknowledges. "It’s able to simultaneously manage Unix loads and Linux loads running together."
In September, IBM forged an agreement with Linux vendor Red Hat to thrust Linux across its eServer product line. To that end, Harrell continues, IBM will interpolate Linux offerings for pSeries by the discontinuance of 2002.
"We’re introducing the capability here to manage mixed Linux and AIX environments, but we’re not done. It’s their goal to advertise original pSeries product offerings before the discontinuance of this year, and even more in the next [year], that are designed to hasten Linux in a endemic benign of environment [on pSeries hardware]," he concludes.
Stephen Swoyer is a Nashville, TN-based freelance journalist who writes about technology.
With utter the press Linux gets these days, it's facile to forget that there are quiet many versions of Unix diligently doing their duty in data centers around the world. In an effort to give some equal time to Linus' inspiration, let's Take a peep at some of the latest innovations in recent releases of the industry-leading versions of Unix: AIX, HP-UX, and Solaris.
When IBM released its latest version of Unix in 2001, they named it AIX 5L, adding the "L" to indicate an affinity with Linux. AIX 5L runs on the IBM System p5, eServer p5 and pSeries, eServer iSeries, BladeCenter, IntelliStation and RS/6000 platforms.
The latest version of AIX 5L, 5.3, was released in 2004, and supports application binary compatibility with previous versions of AIX 5L running on the very architecture.
AIX 5L 5.3 includes a number of original or significantly improved management features.
The Second Journaling File System (JFS2) now supports dynamically enlarging or shrinking a file system, the faculty to gain a snapshot of or restore a file system, and quota management capabilities.
Kernel and processor uphold for micro-partitioning allows the system administrator to fine-tune the expend of system resources in fractions of virtual partitions and processor usage on POWER processor architectures.
Kernels running on POWER architectures now uphold simultaneous multithreading (SMT).
The original System Update Management lieutenant (SUMA) provides an automated, policy-based mechanism to download AIX fixes directly from IBM support.
A original accounting subsystem provides more advanced data gathering and statistics than the traditional Unix accounting system.
NFS Version 4, developed by the Internet Engineering job constrain (IETF), provides increased security and performance over previous versions provided by Sun Microsystems.
The current Unix release from Hewlett-Packard is known as HP-UX 11i Version 2. First released in 2003, 11i v2 has seen several updates, including the most recent in June of this year. HP-UX 11i v3 is due to be released at the discontinuance of this year.
HP-UX 11i v2 brings two sunder releases of HP-UX back together. Following the release of HP-UX 11.11 for the HP 9000 (PA-RISC processor) in 2000, a original version of HP-UX, derived from 11.11 and labeled HP-UX 11i, was released to uphold the original Integrity server platform utilizing the 64-bit Itanium processor. Subsequent releases of 11i supported one platform or the other, but not both until Version 2.
HP-UX 11i v2 includes the following original hardware-related features:
Support for both PA-RISC and HP/Intel Itanium architectures
Support for 128 processors (increased from 64 in v1)
Binary compatibility for PA-RISC applications running on Itanium-based systems
Support for Cache Coherent Non-Uniform remembrance Access (ccNUMA)
HP-UX 11i v2 besides provides several original systems management capabilities.
Virtual partitions (running multiple instances of HP-UX on a solitary system) are now supported on both processor platforms and the operating system can uphold virtual partitions running other supported operating systems (i.e., Windows or Linux).
The original HP-UX Security Attributes Configuration appliance allows the system administrator to configure system-wide and per-user security attributes via a Web interface.
A original web-based kernel configuration tool, kcweb, provides a platform- independent, graphical interface that can be used to monitor and modify kernel parameters of a running system.
The latest release of Unix from Sun Microsystems is Solaris 10, released in 2005. Being a major original release, it brought many original features, not the least of which is one not related to either hardware or software, but a pecuniary feature: Solaris 10 is now (mostly) open source and can be downloaded free of charge. Of course, Sun hopes you'll quiet want to purchase add-on products and uphold services.
Solaris 10 features some significant original hardware and performance-related changes:
Support for Sun SPARC and Intel x86 architectures (both 32-bit and 64-bit)
It will hasten Linux applications (on x86 platforms) via the Linux Application Environment
A original unified TCP/IP stack yields significant networking performance increases
Binary compatibility for Solaris applications back to Solaris 2.6
Solaris 10 besides boasts quite a number of original management and security-related features.
A original file system, Zettabyte File System (ZFS), claims increased data integrity and consistency, superior manageability, vast scalability, and lofty performance. With built-in volume management functionality, ZFS eliminates the requirement of an additional volume manager.
A original dynamic tracing tool, DTrace, provides an interface for developers and system administrators to safely probe a running application or a running kernel for debugging or performance tuning purposes.
Solaris Containers (aka Zones) allow an administrator to set up multiple virtual systems running on a solitary system (comparable to ratiocinative partitions in other versions of Unix).
The original Service Management Facility (SMF) is a replacement for System V-based startup scripts and provides an interface allowing simple configuration and monitoring of system services.
Solaris frailty Manager and Predictive self-healing enable diagnosis and isolation of and, in some cases, recovery from specific hardware and software failures, initially CPU, memory, and I/O bus problems.
Process Rights Management provides a finer-grain of control (than benchmark Unix) over resources that a process may access.
NFS Version 4, developed by the Internet Engineering job constrain (IETF), provides increased security and performance over previous versions.
King Ables earned his bachelor's degree in computer science from the University of Texas at Austin in 1982. He has been involved with Unix as a user, developer, systems administrator, consultant and author since 1979.