RE: Your experience - positive or negative - with Oracle on VMWare...
- From: "Freeman, Donald" <dofreeman@xxxxxxxxxxx>
- To: "'robertgfreeman@xxxxxxxxx'" <robertgfreeman@xxxxxxxxx>, "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>, "mzito@xxxxxxxxxxx" <mzito@xxxxxxxxxxx>, Oracle-L Freelists <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 21 May 2009 13:39:16 -0400
We don't have any production Oracle instances on VMWare but we have some test
and development instances. We have a lot of SQL Server on VM's. Oracle
licensing is pretty obtuse about VMWare and I don't see any way to leverage our
Enterprise VMWare license to do anything more with Oracle. My understanding is
that in regard to VMWare that Oracle wants paid for every CPU on the VM host
whether or not you are using them. Not so for the Oracle VM.
What is hard to determine, at least for me, is trying to determine beforehand
if there will be any problems with moving a database to VM. We don't have any
astonishingly large or high-transaction volume systems. When confronted with
the organizations intent to put as much as possible on VM's I started with less
risky systems and moved to more challenging. One thing to be considered up
front is that if the system you want to deploy on a VM already is going to take
up more than half of the VM boxes resources based on its existing needs you
will make it pretty hard to fit into the VM. If the system needs to failover
it needs to move to a box with some reserve capacity. All of our ESX servers
have only 4CPU's. We had a lot of servers that were grossly overpowered for
the databases they supported. It's a lot easier to dial it down on a VM and
match the actual system requirements.
We also experienced a successful failover. One of the ESX servers failed and
the four test/uat database servers on it moved and restarted successfully.
They were all back up within 15 minutes.
Donald Freeman
Database Administrator II
Commonwealth of Pennsylvania
Department of Health
Bureau of Information Technology
2150 Herr Street
Harrisburg, PA 17103
dofreeman@xxxxxxxxxxx
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Robert Freeman
Sent: Thursday, May 21, 2009 12:44 PM
To: Allen, Brandon; mzito@xxxxxxxxxxx; Oracle-L Freelists
Subject: Re: Your experience - positive or negative - with Oracle on VMWare...
Now I must admit, that *is* cool.... :-)
RF
Robert G. Freeman
Author:
Oracle ACE
OCP: Oracle Database 11g Administrator Certified Professional Study Guide
(Sybex) Oracle Database 11g New Features (Oracle Press) Portable DBA: Oracle
(Oracle Press) Oracle Database 10g New Features (Oracle Press) Oracle9i RMAN
Backup and Recovery (Oracle Press) Oracle9i New Features (Oracle Press) Other
various titles out of print now...
Blog: http://robertgfreeman.blogspot.com
The LDS Church is looking for DBA's. You do have to be a Church member in good
standing. A lot of kind people write me, concerned I may be breaking the law by
saying you have to be a Church member. It's legal I promise! :-)
http://pages.sssnet.com/messndal/church/parachurch.pdf
----- Original Message ----
From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
To: "mzito@xxxxxxxxxxx" <mzito@xxxxxxxxxxx>; "robertgfreeman@xxxxxxxxx"
<robertgfreeman@xxxxxxxxx>; Oracle-L Freelists <oracle-l@xxxxxxxxxxxxx>
Sent: Thursday, May 21, 2009 10:38:19 AM
Subject: RE: Your experience - positive or negative - with Oracle on VMWare...
One more thing I'll add to the previous discussion that I don't think I
mentioned before - I have actually witnessed a live transfer of an Oracle
database (and its underlying virtual/guest host) from one physical host to
another via VMotion (http://www.vmware.com/pdf/vmotion_datasheet.pdf) and
database connections/sessions were kept intact, so I can confirm it works as
advertised - at least in the one case where I tested it.
Regards,
Brandon
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Matthew Zito
There was just a pretty good thread on this a few weeks back:
//www.freelists.org/post/oracle-l/Oracle-products-on-vmware
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