vPar and HPVM

[sen_ux]

"HPVM is not supported on Virtual partitions.."

What is the technical reason behind this.?

Thanks

[Olivier Masse]

I don't know the exact reason but last time I asked if there were plans for making HPVM run in vPars, it was at last year's HP-UX panel at the HPTF so I figure the guys up there knew what they were talking about. The answer from a man with a southern accent whose name I don't remember was a short and simple "no"... Not as in a "maybe later" but a definite "no".

I remember being left unsatisfied by such a quick explanation and asked "Final answer?" but couldn't get any more details except a strong feeling that the powers at be at HP were not interested in doing this.

I did hear a rumor there that vPars are going away (and no, I'm not going to tell who I heard it from). Which would be a shame, as I find them very useful when doing performance testing and this can't be measured accurately in virtual environments.

Olivier

[Michael Steele_2]

Hi

Probably the vpdb's responsibility of mapping a complete inventory of the npar, and how each resource remains whole, at 100%, and can't be split into virtual disks, or percentages of a whole disk, or CPUS, etc.

[Kapil Jha]

I am not sure if there is any technical or management issue with it.
As far as I can think HPVM could be compatible on vPar, cause HPVM thing would start only after vPar comes up and it would not be having anything to do with nPar and vPar config.

Well it would be double virtual..... ;)

BR,
Kapil+

[Duncan Edmonstone]

Olivier... vPars are still on the roadmaps - I'm sure the labs would like to have just one sort of virtualisation technology rather than 2, but until HPVM can deliver as low a virtualisation overhead as vPars, I doubt it will be going anywhere.

As for HPVM in a vPar - I doubt there are many technical issues, but its a bit of a corner case really isn't it? Kind of like running virtual box in a VMWare guest... Unless there was a hell of a lot of demand for it, I doubt the labs would want to do the qualification testing required for it.

Remember, its easy for us to say here "it should work" - but to support this in mission critical environments would require a significant investment in testing - as I'm sure you know, people to cost benefit analyses and I'm not sure this one would stack up.

My opinions only - not those of HP...

HTH

Duncan