RE: Virtualization
- From: "Jay Weinshenker" <jweinshe@xxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx, Brandon.Allen@xxxxxxxxxxx, guillermo.bort@xxxxxxx
- Date: Tue, 07 Oct 2008 09:40:38 -0500
Brandon - I'm curious what issue you ran into with a 32-bit OEL4 guest
on ESX was - mind sharing?
Bort - I run a number of Oracle 9, 10, and 11 databases on RHEL 4 and 5
(32-bit) and at the end of the year I should be done virtualizing every
one of them (VMWare ESX for all of them). There are some basic changes
/ parameters to verify but otherwise I haven't seen any issues with
VMWare under I/O stress - I'm run some of these DBs on standalone ESX
servers and some connected to a EMC CX3 array. In no case have I had an
issue where the VM "just dies".
Using ESX 3.0.2 or 3.5 Upd 1.
As far as the basic changes / parameters to verify
grub.conf - elevator=deadline, divider = 10
init.ora - filesystemio_options=SetAll (note that you may need to verify
aio rpm if using RHEL/OEL 4)
cache as much in the DB - i.e. make SGA as large as your VM memory
allows - leave little to no memory to guest OS to cache
the usual RAID 10/5 for data, RAID 1 for logs
VMFS works fine
hugepages
That's all that comes to mind at the moment. Feel free to email me
backchannel with any specific questions.
J
--
Jay Weinshenker
jweinshe@xxxxxxxxxxxxxx
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