December 31, 2010 at 6:48 pm
I have been tasked with installing SQL Server 2008 Enterprise (not R2) on a Windows 2003 Enterprise server that is currently running a clustered SQL Server 2005 Enterprise installation. This is a big box with plenty of cpu.
My question is whether or not it is possible to run these 2 products side by side? I know it is possible to do without clustering but wanted to ask the experts if it was possible to do this with clustering in use?
Thank you!
Even as a mother protects with her life
Her child, her only child,
So with a boundless heart
Should one cherish all living beings;
January 1, 2011 at 10:08 am
Yes - it is possible to run multiple instances in a cluster, and no reason why you cannot run both 2008 and 2005 on the same cluster.
Remember, in a cluster you will need separate resources for each instance. That is, you will need another cluster group defined for the second instance, separate drives for the database files, a separate virtual IP address and name, etc...
Once those are set up - perform the cluster install and select the new cluster group, using the new drives and IP address and name.
Note: this will require multiple server restarts - which will mean several small outages for the application as the existing cluster groups are failed over and the servers restarted.
Jeffrey Williams
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― Charles R. Swindoll
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