We have a 2003 server that has an application on it that utilizes SQL Server 2000. The application's database is backed up using CommVault. On Friday I successfully installed a named instance of SQL Server 2005 on the server. That evening the scheduled CommVault backup on the SQL Server 2000 database failed with the following errors in event viewer: (any ideas as to why the backup is failing. It seems to have something to do with me installing the named instance of 2005)
18210 :
BackupVirtualDeviceSet::Initialize: Open failure on backup device '5716c615-e89a-4482-ac50-6c3e658fc253'. Operating system error 0x80770006(error not found).
and
3041 :
BACKUP failed to complete the command BACKUP DATABASE [master] TO VIRTUAL_DEVICE = '5716c615-e89a-4482-ac50-6c3e658fc253' WITH MAXTRANSFERSIZE=65536, BLOCKSIZE=65536, BUFFERCOUNT=1, NOINIT, name='CommVault Galaxy Backup'