Tape drives non-functional
Hi
we have master server solairs 10, VCS cluster, NBU 7.7.3
Media Server : HPUX B.11.31 U ia64 , NBU 7.7.3
tape library - SL3000, which has 4 LTO4 and 20 LTO5 tape drives.
My robot control has only 18 LTO5 tape drives configured on it.
As 4 LTO4 are not shared and only configured on specific media server (These drives are working fine).
2 LTO5 are specifically configured on another media server and are not share.
now out of these 18 tape drives, 8 tape drives are not working fine.
they are forever in down-tld mode, if we make them up and run backups, backups fail with tape-rbot error,
Now concern is even robtest is not able to dismount tapes, it gives scsi errors.
m d16 s262
Initiating MOVE_MEDIUM from address 1015 to 2261
move_medium failed
sense key = 0x5, asc = 0x3a, ascq = 0x0, MEDIUM NOT PRESENT
We have checked with tape library vendor according to them there is no hardware issue with tape drives and library.
ALso all devices are in claimed state and visible on OS.
Please suggest what i need to look for to fix this issue.
If the device name was present before, then it means that 'something' happened that caused the OS to lose connectivity to the device.
NBU uses the OS for device access.So, you need to troubleshoot as OS-level.
Check output of '/usr/openv/volmgr/bin/scan' and 'ioscan -f'.Check syslog file for errors.