On Nov 3, 2009, at 8:22 AM, Alan McKay <alan.mckay@xxxxxxxxx> wrote:
> Hey folks,
>
> We've got some new hardware and are trying to figure out what best to
> do with it. Either run CentOS right on the bare metal, or
> virtualize, or several combination options. Mainly looking at :
>
> - CentOS on bare metal
> - CentOS on ESXi 4.0 with local disk
> - CentOS on ESXi with 1 VM running Openfiler to serve disk to other
> VMs
>
> And want to benchmark these 3 scenarios
>
> So far all we have is a dd-based disk IO benchmark.
>
> What else can you all recommend.
>
> BTW, we also ideally want to try each of the above with a Postgres DB
> as well (and once without)
Take a look at iozone it is a little dated, but still good and is
cross platform so you can can have a level playing field between
Linux, Windows and Solaris.
I'd be interested in hearing your results. I will tell you it will be
slower then bare metal, that is just a fact of life, but with adequate
hardware it may be more then acceptable.
It would allow a VM to fail-over for another though which is key in a
HA situation like storage.
-Ross
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