Tape Library on Aix


 
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Operating Systems AIX Tape Library on Aix
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Old 03-01-2008
Power Tape Library on Aix

I am having my 14 Aix 5.3 servers on bladecenters connected with my Tape Library.
I had a backup scheduled on tape library but after taking backup successfully,
Now,

Question 1:-
I wanted to restore backup but tape library could not recognize the tape and I get I/O error in TSM. I think it is not recognizing the barcode Label on tape though I think it just check in the tape blindly while backup starts. Whats your suggestion on this any solution..?

Question 2:-
Due to above issue I removed my tape drive rmt0 from TSM Server using command

#rmdev –dl rmt0

After that I wanted to reconfigure my tape library so I fired
#cfgmgr
But it does not detects my tape library rmt0
Then I restarted my tape library and issued same commands but same result
#lsdev –Cc tape
does not throw any output
Also in /dev/, rmt0 directory is absent
What can I do to reactivate my tape drives other than rebooting my server (Aix 5.3)?

Please help immediately, thanks in advance.
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BUTC_LOGS(5)							AFS File Reference						      BUTC_LOGS(5)

NAME
butc_logs - Message logs from the Tape Coordinator process DESCRIPTION
The Backup System Tape Coordinator (butc) process generates two log files per device, one for error messages and one for actions. Error Message Log The TE_device_name file logs error messages generated by the Backup System Tape Coordinator that controls the tape device or backup data file indicated by device_name. As the Tape Coordinator initializes, it creates the file in ASCII format in the /var/lib/openafs/backup directory. If there is an existing file, the Tape Coordinator renames it to TE_device_name.old>, overwriting the existing TE_device_name.old> file if it exists. For a tape device, the Tape Coordinator derives the variable device_name portion of the filename from the device pathname listed in the local /var/lib/openafs/backup/tapeconfig file, by stripping off the initial "/dev/" string and replacing any other slashes in the name with underscores. For example, the filename for a device called /dev/rmt/4m is TE_rmt_4m. Similarly, for a backup data file the Tape Coordinator strips off the initial slash ("/") and replaces any other slashes in the name with underscores. For example, the filename for a backup data file called /var/tmp/FILE is TE_var_tmp_FILE. The messages in the file describe the error and warning conditions the Tape Coordinator encounters as it operates. For instance, a message can list the volumes that are inaccessible during a dump operation, or warn that the Tape Coordinator is overwriting a tape or backup data file. The messages also appear in the /var/lib/openafs/backup/TL_device_name file, which traces most of the Tape Coordinator's actions. Action Log The TL_device_name file logs the actions performed by the Backup System Tape Coordinator that controls the tape device or backup data file indicated by device_name. It also records the same error and warning messages written to the TE_device_name file. As the Tape Coordinator initializes, it creates the file in ASCII format in the /var/lib/openafs/backup directory. If there is an existing file, the Tape Coordinator renames it to TL_device_name.old, overwriting the existing TL_device_name.old file if it exists. For a tape device, the Tape Coordinator derives the variable device_name portion of the filename from the device pathname listed in the local /var/lib/openafs/backup/tapeconfig file, by stripping off the initial "/dev/" string and replacing any other slashes in the name with underscores. For example, the filename for a device called /dev/rmt/4m is TL_rmt_4m. Similarly, for a backup data file the Tape Coordinator strips off the initial slash ("/") and replaces any other slashes in the name with underscores. For example, the filename for a backup data file called /var/tmp/FILE is TL_var_tmp_FILE. SEE ALSO
tapeconfig(5), butc(8) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 BUTC_LOGS(5)