Run out of Drive Letters, and mount point in SQL server 2008

Posted on 2011-02-10
Last Modified: 2012-05-11
Currently we are running three SQL2008  server instances in a two nodes Win 2008 cluster.  We are using IBM snapmanager to do the DB backup.  However, we found that the backup job sometimes failed if it backed up more than 30 databases at a time.  We finally need to separate DB into different luns within the same DB instance.  It will run into trouble when we have more and more databases.  It will run out of Windows drive letters when put additional databases into additional luns.  We think of using mount point on the SQL servers (thus there is no limit on the Windows drive letters).  I have never made use of mount point.  Can any one provide info on how to set up mount up on SQL server 2008?

Thanks you very much.
Question by:ICKW
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Expert Comment

ID: 34863875
Mount points are set up in Windows - not in SQL server see
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Accepted Solution

Justin Owens earned 500 total points
ID: 34863968
SQL uses mounted drives, whether by mount points or by drive letter.  It is controlled by the OS, not by the SQL program.

To set up mounted volumes in Windows 2003:

SQL support for mounted volumes:

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Expert Comment

by:Justin Owens
ID: 34863980
Sorry, Brian.  Refresh got me. -Justin
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Author Comment

ID: 34867723
Thanks for the info.  If it's a two-nodes  Windows cluster, need to do the mount point on both nodes?

Author Comment

ID: 34940862
Thanks for the info.  If it's a two-nodes  Windows cluster, need to do the mount point on both nodes?
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Expert Comment

by:Justin Owens
ID: 34942957
Yes.  The cluster's nodes need to be the same.

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