The full lsscsi output shows disks etc... so I've stripped it to only show the
tape stuff:
lsscsi |egrep -i "quantum|tape|hp|st"
[0:0:2:0] storage QUANTUM Scalar i2000 5A87 -
[0:0:2:1] tape HP Ultrium 3-SCSI M69Z /dev/st0
[0:0:2:2] tape HP Ultrium 3-SCSI M69Z /dev/st1
[0:0:2:3] tape HP Ultrium 5-SCSI I3AZ /dev/st2
[0:0:2:4] tape HP Ultrium 5-SCSI I3AZ /dev/st3
[0:0:3:0] storage QUANTUM Scalar i2000 5A87 -
[0:0:3:1] tape HP Ultrium 5-SCSI I3AZ /dev/st4
[0:0:3:2] tape HP Ultrium 5-SCSI I3AZ /dev/st5
[0:0:3:3] tape HP Ultrium 5-SCSI I3AZ /dev/st6
[0:0:3:4] tape HP Ultrium 5-SCSI I3AZ /dev/st7
[1:0:1:73] disk HITACHI OPEN-V 7002 /dev/sdhp
[1:0:2:0] storage QUANTUM Scalar i2000 5A87 -
[1:0:2:1] tape HP Ultrium 5-SCSI I3AZ /dev/st8
[1:0:2:2] tape HP Ultrium 5-SCSI I3AZ /dev/st9
[1:0:2:3] tape HP Ultrium 5-SCSI I3AZ /dev/st10
[1:0:2:4] tape HP Ultrium 5-SCSI I3AZ /dev/st11
Thanks for suggesting lsscsi - I'd forgotten about it. The nice thing about
that is it equates the path seen in /proc/scsi/scsi to the device path in /dev.
Running an mt -f /dev/nst0 status on this host gives an I/O error
mt -f /dev/nst0 status
/dev/nst0: Input/output error
Whereas on another media server just like the above the output is different:
mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=-1, block number=-1, partition=0.
Tape block size 0 bytes. Density code 0x0 (default).
Soft error count since last status=0
General status bits on (50000):
DR_OPEN IM_REP_EN
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Bluejay
Adametz
Sent: Thursday, January 12, 2012 1:31 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] MISSING PATH for tape devices in RHEL5 for NetBackup
7.1
> However, if I do a cat /proc/scsi/scsi I see the 3 paths to the library
> (Quantum i6000) blades and the 12 HP Ultrium (10 Ultrium 5 and 2 Ultirum 3).
Try using lsscsi (from the lsscsi package, if you need to install it)
and see that all your tape drives show up with the device names you
expect.
If they're there, you can use the mt utility (from mt-st) to see if
you can actually access them: the status option should return some
information from the drive.
If all that works, themn the next suspect would be NetBackup.
- Bluejay Adametz
Most quarrels amplify a misunderstanding. - Andre Gide
NOTICE: This message, including any attachments, is only for the use of
the intended recipient(s) and may contain confidential and privileged
information, or information otherwise protected from disclosure by law.
If the reader of this message is not the intended recipient, you are
hereby notified that any use, disclosure, copying, dissemination or
distribution of this message or any of its attachments is strictly
prohibited. If you received this message in error, please contact the
sender immediately by reply email and destroy this message, including all
attachments, and any copies thereof.
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Athena(r), Created for the Cause(tm)
Making a Difference in the Fight Against Breast Cancer
---------------------------------
CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential
information and is for the sole use of the intended recipient(s). If you are
not the intended recipient, any disclosure, copying, distribution, or use of
the contents of this information is prohibited and may be unlawful. If you have
received this electronic transmission in error, please reply immediately to the
sender that you have received the message in error, and delete it. Thank you.
----------------------------------
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
