Hi,

I was testing out some SQL scripts on the DR site when I got an error in SSMS stating that the Windows OS could not access the TempDB files.  I went on Server Manager - Disk Management and rescanned the disks, but the TempDB volume never showed up.  I then looked on Group Manager for the SAN and didn't see that volume offline or anything nor did the SAN have any errors.  On iSCSI Initiator, the volume was connected so I'm wondering how Windows could "lose" a volume just like that?

I finally got it working by disconnecting to the volume on iSCSI Initiator and reconnecting, then rescanned the disks.  The TempDB volume showed up, but SSMS still could not access that volume so I restarted the SQL service.  It worked and everything is fine.

I'm just curious if anyone ran into this problem before?  Does anyone know why this occurred?

Thank you.