Implementing vPars and Integrity VM v6.1 in BL870c i2 running HPUX BOE March 2012 release update

[Joesel]

Hi,

We are in the process of implementing vPars using HPUX  vPars and Integrity VM version 6.1 running HPUX BOE March 2012 in BL870c i2 server.

The system has a total of 16 cores and 64GB memory. Our goal is to create 3 vPars with the following set-up:

>>  6cores for vPar1, 6 cores for vPar2, 3 cores for vPar3, 1 core will be use by the VSP = 16 cores

>>  16GB for vPar1, 32GB for vPar2, 16GB for vPar3 = 64GB memory

We have created 3 vPars with the above cores but we encountered a memory "shortage" while allocating memory to each vPar. I know that VSP and vPars have memory overhead which will reduce your total memory capacity by more or less 8%. (referring to HP-UX vPars and Integrity VM v6.1 Administrator Guide). But unfortunately, when checking the memory in the vPar/VM memory pool the available size is only 25GB out of 64GB. So about 40% of physical memory is available only for the vPars and the rest is consume by the VSP which I think is not normal.

See below output, only 25GB memory is available in vPar/VM pool out of 65GB physical memory.  In below details, LDOM# 0 and 2 are available in “System Memory Sizes” giving you a total of 65GB memory but under “ vPar/VM memory pool sizes” only LDOM# 0 with 25GB size is available. The system does not make LDOM#2 memory available to the vPar/VM memory pool or it's missing.

Has anybody already implemented this kind of set-up without issues on memory usage consumed by VSP? Why the virtualization software is consuming so much more memory than the documentation states?

I know this is a new release but I am posting hoping anybody have already done a set-up like this without facing memory issues.

Thanks!

[Vas]

Check the kernel parameters filecache_max  and   filecache_min and change them to 1% if they are at their default values.

Also check the  base_pagesize parameter and changing it to 64 from default 4 will make more RAM available to the system.