rPerf script - to work out an rPerf rating for your LPAR
The official rPerf rating (relative performance rating of Power based machines) are available in the pSeries, System p and now Power Systems "Facts and Features" documents that are on the IBM website. It is best to use Google for them (searching for "pseries Facts and Features" works for me). You may want to know the rPerf rating for your LPAR and an LPAR that is not one of the officially rated numbers of CPUs/Cores. There may be ratings for 8 and 16 CPUs but your LPAR has 13 CPUs! Well, you can run the rperf script on... [More]
Tags:  rperf power6 pwer4 aix power7 power power5 |
Systems Diretor 6.2 released - get yours now!
Late last week Systems Director 6.2 was released - a few days early too! This is the free to download and use IBM platform management software from IBM. For us AIX guys that means Power Systems Hardware, HMC, IVM, VIOS and AIX - and Linux on POWER too This new release is was focused mainly performance, simpler install (or migration from 6.1) and rolling in many fixes that could not be addresses with service packs. There are also some new features like dual VIOS SAN support for VMControl virtual application deployment. AIX is obviously the... [More]
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POWER7 variable frequency monitoring in AIX
AIX 6.1 TL04 sp3 supports the new POWER7 machines like Power 750, 77 and 780, where CPUs can be run at slower speeds to reduce electrical energy use when not busy. This feature is switched on by Systems Director and the Active Energy Manager plugin which talks to the service processor to enables it. I like the "Dynamic Power Saving - Favour Performance" option. From the AIX end, the pmcycles command is used to find your current CPU frequency. Before switching on the energy saving: # pmcycles -M This machine runs at 3550 MHz - This... [More]
Tags:  aix6 pmcycles aix aem |
AIX support for POWER7
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Tags:  hardware power7 aix |
Oracle database support for AIX 6 Workload Partitions |
New PowerHA support flashes
PowerHA recently announced support for the following: PowerHA announces support for DS3400 PowerHA announces support SAS Adapters PowerHA announces support 5735 PCI-e Dual Fibre Adapter Click on the above linked text for full support details.
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Recent PowerHA announcements
HACMP recently announced support for the following: PowerHA announces support for JS23/JS43 PowerHA announces support JS12 PowerHA announces support for Async GLVM PowerHA/XD Announces Support for SVC 4.3.1 Click on the above linked text for full support details.
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Increased Memory Requirements for VIOS 2.1 and LHEA
Using NIM to install VIOS 2.1 The install may hang with after the message: "Mounting File Systems" Why? VIOS 2.1 requires more than 1GB of memory typical for VIOS 1.5 From the Release Notes: Each LHEA *port* assigned to the VIO Server requires a minimum of 612MB (not a typo) of memory - *each* port. This is in addition to the base memory that VIOS 2.1 itself requires (typically 512MB). Example: If you have two [2] LHEAs assigned to VIOS 2.1, the VIOS will need a minimum of: 612 MB + 612 MB + 512 MB = 1,736MB (LHEA) + (LHEA) + (Base) =... [More]
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Day Light Savings Time Check
With day light savings time nearing, its a good time to check if your AIX version has the proper patches. There were some problems in some TL's last fall. The recommended levels are: AIX 6.1 Package Level shipped APAR/Filesets 6100 TL0 6100-00 IZ09600 bos.rte.libc 6.1.0.2 6100 TL1 6100-01 IZ22211 bos.rte.libc 6.1.1.1 AIX 5.3 Package Level shipped APAR/Filesets 5300 TL8 SP2 5300-08-02-0822 IZ22212 bos.rte.libc 5.3.8.2 Package Level shipped APAR/Filesets 5300 TL7 SP2 5300-07-02-0806 IZ11729 bos.rte.libc 5.3.7.2 If you have any questions, check... [More]
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New "svmon" option for Available Memory
This is a new feature of starting with AIX 5.3 TL9 and AIX 6.1 TL2. svmon will now report a new metric called "available memory." This is the amount of memory available to applications. It includes memory in the file cache. The basic idea is that a user can consume the "available memory" without causing the system to start paging to paging space. Once "available memory" is depleted, AIX will have to start paging out to paging space. To get svmon to display the available metric, you can specify the ''-O summary=basic" option. There are a... [More]
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