Dell PowerVault 124T Autoloader appears with exclamation mark in Device Manager

CURRENT CONFIGURATION:
Hardware: SuperMicro 7XDB3 with on-board Adaptec RAID controller, Adaptec SCSI Adapter 29320LPE; Tape Library Dell PowerVault 124T
Software: Windows 2003 x64 SP2 + Fixes, Symantec Backup Exec 11d

OBJECTIVE: Use tape library with Backup Exec

ISSUE: Dell PowerVault 124T Autoloader appears with exclamation mark in Device Manager. Installation of Symantec Backup Exec 11 services pack 3 does not help. Update driver for Dell PowerVault 124T Autoloader is freezing.

SOLUTION:
Uninstall on server Dell PowerVault 124T Autoloader and IBM ULTRIUM III TAPE DRIVE
Shutdown the server
On Front Panel of Dell PowerVault 124T change SCSI ID to different except 7. SCSI ID 7 uses usually SCSI controller by them self. I changed SCSI ID for tape library from 6 to 5.
Shutdown the tape library
In the server move Adaptec SCSI Adapter 29320LPE to different slot.
Take a cup of either coffee or tee, watch to window if you have it.
Start the server and press Ctrl+A when BIOS information of Adaptec SCSI Adapter 29320LPE appears.
Change setting for your selected SCSI ID for tape library (my is 5) to LUN ENABLE. Save changes. Shutdown the server.
Power on the tape library Dell PowerVault 124T
Wait some minutes.
Power on the SuperMicro 7XDB3 server
Open "Symantec Backup Exec 11d for Windows Servers", check Devices and start Inventory.

TAGS: Symantec Backup Exec, Backup, SCSI, Autoloader, Tape changer