server snapshots: IBNp570 power6

The IBM POWER6 processor-based System p570 is a midrange server that aims to deliver outstanding price/performance while providing mainframe-like reliability and availability. This 19-inch rack-mount system, which can handle up to 16 POWER6 cores, is best-suited to database and application serving, as well as server consolidation."The first server to use the new POWER6 processor is the System p570," said Jeff Howard, director of System p offering management for IBM (Armonk, N.Y.). "The p570 leverages the chip's many breakthroughs in energy conservation and virtualization technology."POWER6 Packs a PunchThe modular p570 takes over from its predecessor, the IBM POWER5+ processor-based System p5 570 server. POWER6 processors can run 64-bit applications while concurrently supporting 32-bit applications. They feature simultaneous multithreading, allowing two application threads to be run at the same time."At 4.7 GHz, the dual-core POWER6 processor doubles the speed of the previous generation, POWER5, while using the same amount of electricity to run and cool it," said Howard. "This means customers can use the new processor to either increase their performance by 100 percent or cut their power consumption in half."Dan Olds, principal of Oregon-based Gabriel Consulting Group, believes the p570/POWER6 combo is an impressive one. The new processors come in 3.5 GHz, 4.2 GHz and 4.7 GHz flavors. IBM has effectively doubled the frequency over its predecessor without increasing the number of cores on the chip.p570 close upThe POWER6 [processor] has two cores, each of which can simultaneously execute two threads, an approach known as simultaneous multithreading (SMT)," said Gordon Haff, an analyst at Illuminata (Nashua, N.H.). "POWER6 processors also have integrated memory controllers in order to improve memory access times and thereby application performance."He pointed out that changes in the way POWER6 processors connect to each other and to the rest of the system flatten latency differences. There are also new specialized execution units and reliability features. Compute power is able to double largely because POWER6 has more than 790 million transistors compared to 276 million in the POWER5+. The amount of Level 2 Cache has gone up to 8 MB from just under 2 MB.More to ComeWhile POWER6 has been released and is functioning currently in data centers, it is not quite a finished article. IBM is introducing more features later this year, such as Live Partition Mobility and Live Partition Migration. Live Partition Mobility, for example, will move a running Logical Partition (LPAR) from one physical server to another. It functions below the level of the operating system, at the hypervisor level; works only with the upcoming AIX 6 (currently in beta), AIX 5.3, and Linux; and the servers must all be on the same network subnet.Haff said AIX 6 contains several major new features, including role-based access controls, a Trusted installation option and new "Workload Partitions" (WPAR). WPAR are resource groups similar to Solaris Containers or virtual servers that can be migrated from one server to another."I think that enhancements to the overall system, particularly the Live Partition Mobility feature, are big news and will provide the most business value to customers," said Olds. "With Live Partition Mobility, IBM users can move active workloads from one physical server to another — with no application interruption, no loss of transactions, and no user impact."Gaining GroundWith such functions added to the already impressive POWER6, Olds believes the IBM p570 will gain major ground in the marketplace."This arguably means the end of planned application downtime and can eliminate perhaps half of overall application downtime, which is a big deal," said Olds. "This is much more sophisticated than VMware's VMotion and is a feature that their competitors will need to address."Howard of IBM boasted that the POWER6 chip is nearly three times faster than the latest HP Itanium processor that runs much of HP's midrange server line. Thus, it will likely reinforce IBM's lead in the Unix servers market. According to research firm IDC (Framingham, Mass.), the company has a 29.6 percent revenue share in Unix."The p570 is the first server to hold all four major benchmark speed records for business and technical performance," said Howard. "In fact, the System p 570 now holds more than 20 benchmark records."The p570 currently supports AIX 5L (v5.2 or later), the upcoming AIX 6, as well as Linux distributions from Red Hat (RHEL 4 Update 5 or later) and SUSE Linux (v10 SP1 or later).

changing WPAR property & starting in it verbose mode

1 To modify the host name of the workload partition called roy, enter the following command:chwpar -h roy.com roy2 To remove a network address from the workload partition called dale, enter the following command:chwpar -K -N address=219.81.45.65 dale3 To disable resource controls in the workload partition called wayne while retaining the settings for future use, enter the following command:chwpar -R active=no wayne4 To remove the device /dev/foo, exported by default through the devexportsFile, from a workload partition, enter the following command:chwpar -D globaldev=/dev/foo export=no moore5 To export the device /dev/bar, permitted by the devexportsFile but not exported, enter the following command:chwpar -D globaldev=/dev/bar export=yes moore6 To rename the workload partition from moore to hart, enter the following command:

To remove WPAR from commond line

par47p682e_pub[/] > rmwpar TestWpar3rmwpar: Removing file system /wpars/TestWpar3/var.rmlv: Logical volume fslv15 is removed.rmwpar: Removing file system /wpars/TestWpar3/usr.rmwpar: Removing file system /wpars/TestWpar3/tmp.rmlv: Logical volume fslv14 is removed.rmwpar: Removing file system /wpars/TestWpar3/proc.rmwpar: Removing file system /wpars/TestWpar3/opt.rmwpar: Removing file system /wpars/TestWpar3/home.rmlv: Logical volume fslv13 is removed.rmwpar: Removing file system /wpars/TestWpar3.rmlv: Logical volume fslv12 is removed.To remove WPAR first we need to stop WPAR in order to remove it.After removing WPAR all filesystem related to that WPAR gets deleted.

creating WPAR on commond line

1 To create a workload partition called roy, enter the following command:mkwpar -n roy -N address=192.168.0.51All values that are not specified are generated or discovered from the global system's settings.2 To create a workload partition based on an existing specification file, enter the following command:mkwpar -f /tmp/wpar1.spec3 To create a modified copy of a specification file with a new IP address, host name, and workload partition name (without creating a workloadpartition), enter the following command:mkwpar -f /tmp/wpar1.spec -N address=219.168.45.132 -h www.flowers.com -n wpar2-o /tmp/wpar2.spec -w4 To create a new specification file based on an existing workload partition, enter the following command:mkwpar -e wpar1 -o /tmp/wpar2.spec -w5 To recreate a workload partition that was previously removed with the rmwpar -p command, enter the following command:mkwpar -p wparname

console login to WPAR

par47p682e_pub[/] > lswparName State Type Hostname Directory ----------------------------------------------------------MyTestWpar1 A S MyTestWpar1 /wpars/MyTestWpar1MyTestWpar2 A S MyTestWpar2 /wpars/MyTestWpar2TestWpar3 A S TestWpar3 /wpars/TestWpar4 lpar47p682e_pub[/] > clogin MyTestWpar4******************************************************************************** ** ** Welcome to AIX Version 6.1! ** ** ** Please see the README file in /usr/lpp/bos for information pertinent to ** this release of the AIX Operating System. ** ** ********************************************************************************#You can also connect to WPAR via ssh. It will have its own user id for authentication.lsvg, lspv commands wont work as all filesystem alocated to WPAR has been created in AIX 6. global environment.# df -kFilesystem 1024-blocks Free %Used Iused %Iused Mounted on/dev/fslv12 131072 104404 21% 2109 9% //dev/fslv13 131072 128640 2% 7 1% /home/opt 262144 119808 55% 3048 11% /opt/proc - - - - - /proc/dev/fslv14 131072 128424 3% 9 1% /tmp/usr 3538944 158320 96% 91414 69% /usr/dev/fslv15 131072 116816 11% 372 2% /varTo do changes in above mentioned file system . We need to do in global environment. Not frow WPAR. All system adminstartion task of increasing , decreasing, adding, deleting File system are to be done from AIX global environment.

starting & stopping WPAR commond output

NOTE :- All IP shown in the command has been altered as displaying IP on net is invitation to problem.To reboot test wpar 2 command is /usr/bin/stopwpar -r MyTestWpar2 Flag r stands for reboot.outputStopping workload partition MyTestWpar2stopwpar: 0960-261 Waiting up to 600 seconds for workload partition to halt.Stopping workload partition MyTestWpar2.Stopping workload partition subsystem cor_MyTestWpar2.0513-044 The cor_MyTestWpar2 Subsystem was requested to stop.stopwpar: 0960-261 Waiting up to 600 seconds for workload partition to halt.Shutting down all workload partition processes.Unmounting all workload partition file systems.Starting workload partition MyTestWpar2.Mounting all workload partition file systems.Loading workload partition.Exporting workload partition devices.Starting workload partition subsystem cor_MyTestWpar2.0513-059 The cor_MyTestWpar2 Subsystem has been started. Subsystem PID is 696392.Verifying workload partition startup.

server consists of three test of WPAR

To list All WPAR lswpar comamnd is used.lpar47p682e_pub[/] > lswpar --helpUsage:Tabular: lswpar [-D -M -N] [-a fieldname[,...]][-q] [-s state] [-t type] [wparname ...]Paragraph: lswpar {-G -L -R -S -T}[-s state] [-t type] [wparname ...]Delimited: lswpar {-c -d delim} [-a fieldname[,...] -G {-D-M-N} [-a fieldName[,...]] -R -S -T][-q] [-s state] [-t type] [wparname ...]Flags:-a = Comma-separated list of field names to print.-c = Colon delimited output (equivalent to -d:).-d = Output delimited by specified delimiter.-D = Print device exports.-G = Print general information (paragraph format).-L = Long format.-M = File systems or file system dependencies.-N = Print network information.-q = Suppress output header.-R = Print resource information (paragraph format).-S = Print security information (paragraph format).-s = Only print information about workload partitions in agiven state. Valid states are D (Defined), L (Loaded),A (Active), F (Frozen), P (Paused), T (Transitional)and B (Broken).-T = Print operation information.-t = Only print information about workload partitions of a given type. Validtypes are S (System), A (Application) and C (Checkpointable).To have detail inormation of WPAR Use -L flag.