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Tape Library on Aix

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Operating Systems AIX Tape Library on Aix
# 1  
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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LEARN ABOUT OSF1

backup_delhost

BACKUP_DELHOST(8)					       AFS Command Reference						 BACKUP_DELHOST(8)

NAME

       backup_delhost - Deletes a Tape Coordinator entry from the Backup Database

SYNOPSIS

       backup delhost -tapehost <tape machine name>
	   [-portoffset <TC port offset>] [-localauth]
	   [-cell <cell name>] [-help]

       backup delh -t <tape machine name>
	   [-p <TC port offset>]
	   [-l] [-c <cell name>] [-h]

DESCRIPTION

       The backup delhost command deletes the indicated Tape Coordinator entry from the Backup Database. It is then impossible to submit backup
       operations to that Tape Coordinator, even if it is still running. To keep configuration information consistent, also remove the
       corresponding entry from the /var/lib/openafs/backup/tapeconfig file on the Tape Coordinator machine.

       To list the Tape Coordinator machines and port offsets defined in the Backup Database, issue the backup listhosts command.

OPTIONS

       -tapehost <tape machine name>
	   Specifies the hostname of the machine housing the Tape Coordinator to delete.

       -portoffset <TC port offset>
	   Specifies the port offset number of the Tape Coordinator to delete.	If omitted, it defaults to 0. If provided, it is an integer
	   between 0 (zero) and 58510, and must match the port offset number assigned to the same combination of Tape Coordinator and tape device
	   or file in the /var/lib/openafs/backup/tapeconfig file on the Tape Coordinator machine indicated by the -tapehost argument.

       -localauth
	   Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile file. The backup command interpreter presents it to
	   the Backup Server, Volume Server and VL Server during mutual authentication. Do not combine this flag with the -cell argument. For more
	   details, see backup(8).

       -cell <cell name>
	   Names the cell in which to run the command. Do not combine this argument with the -localauth flag. For more details, see backup(8).

       -help
	   Prints the online help for this command. All other valid options are ignored.

EXAMPLES

       The following command deletes the Backup Database entry for the Tape Coordinator with port offset 2 on the Tape Coordinator machine
       "backup3.abc.com":

	  % backup delhost -tapehost backup3.abc.com -portoffset 2

PRIVILEGE REQUIRED

       The issuer must be listed in the /etc/openafs/server/UserList file on every machine where the Backup Server is running, or must be logged
       onto a server machine as the local superuser "root" if the -localauth flag is included.

SEE ALSO

       backup(8), backup_addhost(8), backup_listhosts(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							 BACKUP_DELHOST(8)