1 Netbackup 6.5.2a Master/Media server running on Windows 2003 Std SP2.
1 Quantum Tape library.
Hi, every several months we have an issue with respect to our staging disk to tape duplications and
our tape library.
What we notice after the issue happens is, all 4 of our tape drives in our library are down.
To get out of this situation, we shut down the library, shut down the netbackup master/media server
(in our case it is 1 server) and then turn on the library and then the netbackup server.
Usually at this point, we can bring up the drives (although sometimes a second set of reboots is needed).
As well, there is 1 or more tapes in the tape drives which we need to move via the library console.
In the windows application log, we see the following error entries:
------------------------------------------
Log: APPLICATION (#11271)
Event ID: 13943
Event Time: Tue Dec 30 04:00:16 AM
Event Category: None
Severity: Error
Event User: N/A
Event Source: NetBackup TLD Control Daemon Event Detail: TLD(1) Mode_sense error
------------------------------------------
Log: APPLICATION (#11270)Event ID: 13942
Event Time: Tue Dec 30 04:00:16 AM
Event Category: None
Severity: Error
Event User: N/A
Event Source: NetBackup TLD Control Daemon Event Detail: TLD(1) key = 0x4, asc = 0x44, ascq = 0x0, INTERNAL TARGET FAILURE
------------------------------------------
Log: APPLICATION (#11271)
Event ID: 13943
Event Time: Tue Dec 30 04:00:16 AM
Event Category: None
Severity: Error
Event User: N/A
Event Source: NetBackup TLD Control Daemon Event Detail: TLD(1) Mode_sense error
------------------------------------------
After talking to a symantec tech support rep, I was given a below suggested method to rectify:
On fiber-attached libraries we have an issue that may cause the drives to go offline, and that is if a parameter is enabled on your fiber HBAs that is called Target Reset. If this resets your tape drive in the middle of a back, the backup job will abort, the tape will be left in the drive because the drive does not get the rewind and unload commands from the application, and when the next backup job starts and looks at the drive it finds the drive in a not ready state because the tape is in there and the drive will be marked offline by the application.
Can I get a hand from people that have/had similar issues. I can provide more detail if you would like. Your help would
be much appreciated.
Thanks.
