Can you be a little bit more specific on the envisaged virtualized
workloads and the disk config (RAID levels, etc) of your 2950? I have a
similar setup with Xen running both paravirtualized and fully
virtualized hosts. The greatest concern for the latter are I/O intensive
tasks (such as loaded RDBMS setups). Then I might be able to help you.
Scott R. Ehrlich wrote:
What are people's experiences with CentOS 5.0 64-bit installed on dual 3
Ghz quad-core PE2950 systems with 32 GB RAM each, high-performance
computing (applications that tax both the CPUs and RAM), not currently
in a Beowolf cluster but could adapt to that, and doing so with VMWare
or other vitualization software vs activity being done directly in the OS?
How much of a performance hit, or gain (I'd presume hit), does
virtualization cause an application, resulting in what percentage poorer
or better (I'd presume poorer) performance vs dealing directly with the OS?
It would be nice to have a VM perform some work, and if a person's code
or application breaks, have it take down a VM while keeping a machine
up, and not affecting other people's work.
It may also depend on if an application or code is written directly
with/for the physical cpu/hardware vs more general use (VM).
Thanks for insights and experiences.
Scott
--
--
George Magklaras
Senior Computer Systems Engineer/UNIX Systems Administrator
EMBnet Technical Management Board
The Biotechnology Centre of Oslo,
University of Oslo
http://folk.uio.no/georgios
Tel: +47-22840535
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