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What System Firmware is recommend for Power 770, 780, 795 and why?
As we all know, the advanced PowerVM virtualisation functions of POWER7 based machines are implemented in the hardware (the POWER7 processor itself and the System Firmware, which includes PowerVM Hypervisor) for increased security, high performance and reliability. After more than a year of POWER7 field experience and fixes to increase RAS, further development of still more virtualisation functions and improved algorithms for higher performance - it is very important for all of us to install the newer levels of System firmware to avoid already... [More]
Marcações: systems hmc firmware hypervisor 795 power7 power 770 780 |
Local, Near, Far part 11 - Why Local+Far on Lower End machines?
I have been wondering why the lower end POWER7 machines have local and far memory and not local and near. Perhaps you wondered too! Well at the Miami Power Technical University, I got to talk to Dr Joel Tendler (IBMer) and a POWER7 processor guru and put the question to him. He covered this sort of architectural topic in his presentation at the event and I learnt a lot in this area by listening to the "master". Below is some background and the explanation too. The POWER7 chips has two memory controllers for maximum performance but... [More]
Marcações: 795 xyz 780 near systems aix memory 770 ab far power power7 bus local |
Local, Near & Far Memory part 1 - Large Power7 boxes more local memory
On Power6 the largest machine was the Power 595 with 64 Physical CPUs (cores) across eight CPU books in the machine - each CPU book having 4 Power6 chips and so 8 CPUs (Power6 is a dual CPU chip design). However, with Power7 that has stepped up to 256 CPUs across the same eight CPU books with four chips but with 8 CPUs each so that is 32 CPUs per book. I might be stating the obvious but memory access to memory directly attached to the Power chip on which your process is running is slightly faster than memory access via a Power chip near by... [More]
Marcações: near far 770 powervm aix power7 local 795 780 power6 |
Which AIX Release, Technology Levels and Service Packs to use for the POWER7 machines?
I am getting this question quite a lot and the answer is it depends on the model and when it was made available.
These are the minimums but higher service packs are recommended .
POWER7 Systems
Power 750, 755 (Jan)
Power 770,780 (March)
Blade 700, 701,702 (June)
Power 710, 720, 730, 740, 795 (Sept)
AIX 5.3 TL9
SP7 SP7 - -
AIX 5.3 TL10
SP4 SP4 SP5 SP5
AIX 5.3 TL11
SP2 SP2 SP5 SP5
AIX 5.3 TL12
* * * SP1
POWER7 Systems
Power 750, 755 (Jan)
Power 770,780 (March)
Blade 700,... [More]
Marcações: 710 6.1 750 pack technology 770 730 power7 795 level service 740 780 aix 720 5.2 |
