ioscan -fnC tape - software state is SCAN

[Geoff Wild]

Got an issue with our tape library - received several "SCSI: Request Timeout; Abort -- lbolt"

Other admin rebooted server to see if that would clear up the lbots...

No luck:

# ioscan -fnC tape
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
tape 1 0/1/0/0.0.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/1m /dev/rmt/1mnb /dev/rmt/c4t0d0BESTn
/dev/rmt/1mb /dev/rmt/c4t0d0BEST /dev/rmt/c4t0d0BESTnb
/dev/rmt/1mn /dev/rmt/c4t0d0BESTb
tape 2 0/1/0/1.1.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/2m /dev/rmt/2mnb /dev/rmt/c5t1d0BESTn
/dev/rmt/2mb /dev/rmt/c5t1d0BEST /dev/rmt/c5t1d0BESTnb
/dev/rmt/2mn /dev/rmt/c5t1d0BESTb
tape 9 0/2/0/0.0.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/9m /dev/rmt/9mnb /dev/rmt/c6t0d0BESTn
/dev/rmt/9mb /dev/rmt/c6t0d0BEST /dev/rmt/c6t0d0BESTnb
/dev/rmt/9mn /dev/rmt/c6t0d0BESTb
tape 10 0/2/0/1.2.0 atdd SCAN DEVICE IBM 03590E1A
/dev/rmt/10m /dev/rmt/10mnb /dev/rmt/c7t2d0BESTn
/dev/rmt/10mb /dev/rmt/c7t2d0BEST /dev/rmt/c7t2d0BESTnb
/dev/rmt/10mn /dev/rmt/c7t2d0BESTb
tape 3 0/3/0/0.1.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/3m /dev/rmt/3mnb /dev/rmt/c8t1d0BESTn
/dev/rmt/3mb /dev/rmt/c8t1d0BEST /dev/rmt/c8t1d0BESTnb
/dev/rmt/3mn /dev/rmt/c8t1d0BESTb
tape 4 0/3/0/1.3.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/4m /dev/rmt/4mnb /dev/rmt/c9t3d0BESTn
/dev/rmt/4mb /dev/rmt/c9t3d0BEST /dev/rmt/c9t3d0BESTnb
/dev/rmt/4mn /dev/rmt/c9t3d0BESTb
tape 5 0/5/0/0.2.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/5m /dev/rmt/5mnb /dev/rmt/c10t2d0BESTn
/dev/rmt/5mb /dev/rmt/c10t2d0BEST /dev/rmt/c10t2d0BESTnb
/dev/rmt/5mn /dev/rmt/c10t2d0BESTb
tape 6 0/5/0/1.3.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/6m /dev/rmt/6mnb /dev/rmt/c11t3d0BESTn
/dev/rmt/6mb /dev/rmt/c11t3d0BEST /dev/rmt/c11t3d0BESTnb
/dev/rmt/6mn /dev/rmt/c11t3d0BESTb
tape 0 0/8/0/0.0.0 atdd CLAIMED DEVICE IBM ULT3580-TD2
/dev/rmt/0m /dev/rmt/0mnb /dev/rmt/c12t0d0BESTn
/dev/rmt/0mb /dev/rmt/c12t0d0BEST /dev/rmt/c12t0d0BESTnb
/dev/rmt/0mn /dev/rmt/c12t0d0BESTb
tape 11 0/8/0/1.3.0 stape CLAIMED DEVICE HP C1537A
/dev/rmt/11m /dev/rmt/c13t3d0BEST /dev/rmt/c13t3d0DDS
/dev/rmt/11mb /dev/rmt/c13t3d0BESTb /dev/rmt/c13t3d0DDSb
/dev/rmt/11mn /dev/rmt/c13t3d0BESTn /dev/rmt/c13t3d0DDSn
/dev/rmt/11mnb /dev/rmt/c13t3d0BESTnb /dev/rmt/c13t3d0DDSnb
tape 7 0/9/0/0.1.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/7m /dev/rmt/7mnb /dev/rmt/c14t1d0BESTn
/dev/rmt/7mb /dev/rmt/c14t1d0BEST /dev/rmt/c14t1d0BESTnb
/dev/rmt/7mn /dev/rmt/c14t1d0BESTb
tape 8 0/9/0/1.0.0 atdd CLAIMED DEVICE IBM 03590E1A
/dev/rmt/8m /dev/rmt/8mnb /dev/rmt/c15t0d0BESTn
/dev/rmt/8mb /dev/rmt/c15t0d0BEST /dev/rmt/c15t0d0BESTnb
/dev/rmt/8mn /dev/rmt/c15t0d0BESTb


Bad Scsi card? Tape library has no errors on drive...any ideas as to why the software state is SCAN?

Rgds...Geoff

[Victor Fridyev]

Geoff,

Sorry for the stupid question, but what about duplicate SCSI ID ?

Good luck

[Geoff Wild]

Victor - no duplicates - server has 6 dual ported scsi cards....

Rgds...Geoff

[Cheryl Griffin]

I have seen other cases where SCAN is reported for the atdd device. Have you checked with IBM on this?

[Prashant Zanwar_4]

What if you just remove the device and try adding it again..

remove using rmsf and add again using insf.

It might be just the kernel not able to identify the device state properly.

Hope this helps
Prashant

[RAC_1 · Accepted solution]

The man page says, the SCAN result means the node is locked, try later. I recommand, power cycle the device and insf -ev and check.

Anil

[Sanjay_6]

Hi Geoff,

If this is a SAN connected device, it may be locked by another server and is not availble for use by this node at present.

Hope this helps.

Regds

[Geoff Wild]

Anil was on the right track...

We couldn't talk to robot from server - so we powered off the drive - voila - we could talk - so we re-installed the devices files (after poering up the drive) - using IBM utils (Not insf)....

Evrything is fine now.

Thanks for the input.