LTO-2 tape full when it's not true

[paolo07]

Hi,
using SolsticeBackup 7.2, Solaris 10 01/06, Autoloader LTO Ultrium 2, happens that after labelled a new Volume, it backups only some little data (ex. 15MB) and then it set the tape to FULL, even if tape is 200GB space.

Messages are like this:
Aug 29 22:17:10 Z0901RCOMP02 root: [ID 702911 daemon.notice] Sun StorEdge(TM) Enterprise Backup media: (notice) LTO Ultrium-2 tape OMCplus.003 used 15 MB of 200 GB capacity
Aug 29 22:17:17 Z0901RCOMP02 root: [ID 702911 daemon.notice] Sun StorEdge(TM) Enterprise Backup media: (notice) Volume "OMCplus.003" on device "/dev/rmt/1cbn": Block size is 32768 bytes not 65536 bytes. Verify the device configuration. Tape positioning by record is disabled.
Aug 29 22:17:17 Z0901RCOMP02 root: [ID 702911 daemon.notice] Sun StorEdge(TM) Enterprise Backup media: (info) verification of volume "OMCplus.003", volid 4292210621 succeeded.
Aug 29 22:17:17 Z0901RCOMP02 root: [ID 702911 daemon.notice] Sun StorEdge(TM) Enterprise Backup media: (info) Suggest manually labeling a new writable volume for pool 'OMCplus'

Seems something with the device/tape configuration, but I don't know.
PS: on some other same configurations, it's working fine.

Thanks,Paolo

 

[medo334]

Alsalam Alikom,
i guess you need reclaimation
use this command
reclaim stg stgpoolname th=40

 

[bgc]

Rep

medo334 is right. If you only have very tiny data on it, it will show maybe 99% Reclaimable Space.
TSM makes tape as Full/Filling/Pending.
When tape marked Full, it was filled up at some point ( not necessary 100% full). Data then start to expired, but status is still Full, until reclamation process complete move data out.

 

[heada]

For the reclamation suggestions...... Does EMC Networker(Legato) have support for IBM TSM's reclamation ability?

For troubleshooting, does the tape write the same amount of data with a tar operation?

-Aaron

 

[jthillo]

You can check the actlog as well for error messages relating to reclamation.

We ran into ANR1163W :

volume still contains files which could not be moved.

The volumes in some cases showed 0% utlized and full. We found a volume was corrupt that prevented tivoli from reclaming other volumes.

QUERY ACTLOG search=anr8950w begind=-2 gave us the volume that was having a problem.

moving what data we could and deleting the corrupt data freed up the reclamation process.

 

[heada]

Again, this is a Networker question, NOT a TSM question and so looking for reclamation information in the actlog does absolutely nothing as there is no activity log to query and there is no reclamation.

-Aaron

 

[tcarcas]

tape block size

I have seen this sort of behaviour before - check the tape block size, and check what your scsi card is set to / can be set to.