05-12-2015 05:48 PM
Hi All,
We are facing the tape drive down issue very often,
we have 1 master server = linux VM
2 media server = linux stanalone machine
Drive Name Label Ready RecMID ExtMID Wr.Enbl. Type
Host DrivePath Status
=============================================================================
HP.ULTRIUM6-SCSI.000 Yes Yes CIM204 CIM204 Yes hcart3
med01x /dev/nst0 ACTIVE
med02x /dev/nst0 SCAN-TLDHP.ULTRIUM6-SCSI.001 No No No hcart3
med01x /dev/nst3 DOWN-TLD
med02x /dev/nst3 DOWN-TLDHP.ULTRIUM6-SCSI.002 No No No hcart3
med01x /dev/nst2 DOWN-TLD
med02x /dev/nst2 SCAN-TLDHP.ULTRIUM6-SCSI.003 No No No hcart3
med01x /dev/nst1 TLD
med02x /dev/nst1 SCAN-TLD
Solved! Go to Solution.
05-15-2015 05:33 PM
If the tape drives are shared between the two media servers you need persistence binding enabled. If they shared blow away the robots and tape drives within NBU and rebuild then through GUI that should fix it until the next time you reboot a media server. Rebooting a media could mess up the order of SCSI id assigment.
06-01-2015 02:08 AM
If shared tape drives make sure that the drivers support SCSI reservation and it is enabled in Netbackup
Think it is default, but have seen lack of SCSI resevation awareness cause lot of problems with DOWN'ed tape drives so think it is worth checking.
05-15-2015 02:30 AM
The only way to troubleshoot DOWN drives is to enable logging.
Create bptm log folders on all media servers, and add VERBOSE entry to vm.conf on all media servers followed be restart of NBU.
UP all the drives that are DOWN.
Next time a drives is DOWNed, look for errors in bptm log as well as /var/log/messages on the media server that DOWNed the drive.
05-15-2015 05:33 PM
If the tape drives are shared between the two media servers you need persistence binding enabled. If they shared blow away the robots and tape drives within NBU and rebuild then through GUI that should fix it until the next time you reboot a media server. Rebooting a media could mess up the order of SCSI id assigment.
06-01-2015 02:08 AM
If shared tape drives make sure that the drivers support SCSI reservation and it is enabled in Netbackup
Think it is default, but have seen lack of SCSI resevation awareness cause lot of problems with DOWN'ed tape drives so think it is worth checking.
06-01-2015 02:26 AM
This user seems to have a habit of not replying to attempts to help....
No reply to any of user's new discussions started over the last year.
06-01-2015 03:44 AM
If someone cannot be bothered to come back and reply and mark any posts that helped as solution, they should be blacklisted, if they are repeated offenders, imo.