Will physical CPU/Memory be shared in a VPAR configuration?

[Hanry Zhou]

I was told that I/O adapters are dedicated to the server, however, CPU and Memory is shared between different vpars on the same npar.

Is that true?
I thought each vpar will be using it's own physical CPU, Memory and I/O adapters, and CPU or Memory could be dynamically assigned?

Thanks,

[Shibin_2]

There will be one dedicated CPU for a vPar. CPUs can be dynamically allocated; but to add additional memory you need to reboot.

What is your vPar & OS version?
Dynamic memory allocation is supported only with the latest Vpar version A.5.X ; not supported on HP-UX 11.23

[Duncan Edmonstone]

Depends waht you mean by "shared" - CPU and memory arten't virtualized in any way - for each physical CPU core and each chunk of memory, 1 and only 1 vPar owns that core/memory at any one time - as already pointed out, you can move a core from one vPar to another, and in the latest versions of vPars with 11.31 move memory from one vPar to another, but at any given moment only 1 vPar owns the resources (different fro HPVMs or VMware or IBM SPLPARS weher resources are shared via virtualization)

HTH

Duncan

[點燃]

saludos Hanry,

IO are dedicated always, CPU's can be dedicated or "shared" (floating in our case) and memory, depends on the version of vpars.

[Torsten.]

Currently resources are not really shared, but likely they will be in future, see vPars v6 here:

http://h30507.www3.hp.com/t5/Mission-Critical-Computing-Blog/Gotta-Love-HP-UX-Updates-amp-Customer-Appreciation-from-HP/ba-p/93849