Error 25156. Failed to create MOM database error when installing SCOM 2007. Error Code: -2147217900.

You may experience this error when installing the SCOM database to a SQL 2005 cluster.

**Run the installation on the SQL node that hosts the Virtual Node**  

 

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This error is caused when SQL 2005 is missing disk dependencies within the SQL 2005 Group. 

 

The Fix:

1.  Within the cluster administrator take the SQL group offline.

 

**If the disks are missing you MUST take the SQL group offline in order for any "new" disks to be recognized. You will not be prompted to take it offline either.... :(

 

2.  Properties of SQL server - Dependencies tab -> make sure that all disks are listed.

 

You should have a SQL Network name dependency, and the Physical disk should be listed here as well.

 

3.  If the disks are not there - add them - bring the cluster back on-line

4.  Re-run the SCOM installation

 

*** For additional Information Please refer to:

https://technet.microsoft.com/en-us/library/bb381402.aspx

 

>edwalt