RE: Anyone Running Oracle on VMWare?

  • From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
  • To: "Jon.Crisler@xxxxxxx" <Jon.Crisler@xxxxxxx>, "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 14 Apr 2010 13:14:25 -0700

Our production DBs run on dedicated VMWare hosts, so there is no contention 
with other virtuals.  But, I believe VMWare has functionality to restrict the 
resource usage for each virtual host in order to prevent the kind of problems 
you're talking about.  I'm not a VMWare admin, so I'm not sure on exactly what 
functionality is available or how well it works, but have you (or your VMWare 
admins) looked into it?

I haven't found the overhead of VMWare itself to be very significant - maybe 
1-5%, which could be significant if you're pushing your hardware to the limit 
to begin with, but in that case you probably need better hardware (or tuning to 
lighten the load) anyway.


From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Crisler, Jon



1)      Performance can be variable- depends on the load of the other guests, 
and vmware itself has significant overhead.  We discourage putting production 
databases on vmware due to this issue.  It can be difficult to tune Oracle on 
vmware due to the effect of other guests.

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