These are LTO Ultrium drives.  It's the same tape drive each time but a
different drive with each attempt I'm making now.

My next idea is to try to duplicate the tape, using a different media
server, & then try to restore from the duplicate.

The precise three minute apparent (?) timeout on positioning is what makes
this suspicious.  If it were 3:39, then I'd suspect the tape itself more.

-M

-----Original Message-----
From: Johnny Oestergaard [mailto:johnny AT joe DOT net]
Sent: Tuesday, August 12, 2003 11:51 AM
To: Donaldson, Mark; Veritasbu (E-mail)
Subject: Re: [Veritas-bu] Three minutes, then the restore dies
(positioning timeout??)


Is it on the same tape each time?
Is it on the same tapedrive each time?

The only time I have seen media positioning errors in our installations is 
has been due to tape errors.
But sometimes it helped just to load the tape on a different drive.

I have only had the problem on backups (thank God never on restores)

What tapedrives do you use?

/johnny

At 10:56 12-08-2003 -0600, Donaldson, Mark wrote:
>I'm having trouble with a restore.  It seems to be timing out on media
>positioning after exactly three minutes.  Here's the top of the logfile:
>
>   Restore started 08/12/2003 11:38:14
>   11:38:17 (99312.xxx) Restore job id 99312 will require 1 image.
>   11:38:17 (99312.xxx) Media id C00194 is needed for the restore.
>   11:38:20 (99312.001) Restoring from image created Fri Jul 25 13:55:39
2003
>   11:38:22 (99312.001) INF - Waiting for mount of media id CG0194 on
server
>XXX.
>   11:39:04 (99312.001) INF - Waiting for positioning of media id CG0194 on
>server XXX.
>   11:42:04 (99312.001) The following files/folders were not restored:
>   <snip filelist>
>   11:42:09 (99312.001) Status of restore from image created Fri Jul 25
>13:55:39 2003 = media position error
>   11:42:10 (99312.xxx) INF - Status = the restore failed to recover the
>requested files.
>
>If you notice, the time between the positioning start & the failure
>notification is precisely three minutes.  Four attempts, each fails at the
>three-minute mark.
>
>The MEDIA_MOUNT_TIMEOUT, according to the Sysadmin Guide, is supposed to
>control this timing (load plus positioning combined) and I have it set for
>7200 seconds (2 hours) in the master server's bp.conf file.
>
>   > bpconfig -U
>   <snip>
>   Media Mount Timeout:          120 minutes
>   Shared Media Mount Timeout:   120 minutes
>   <snip>
>
>This is v4.5 MP4 on Sol 8.  The client for the restore job is one of four
>media servers (counting the master=media).
>
>Any ideas?
>
>-M
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