I restored many multiplexed SDLT media last year for a legal project without 
issue using the procedure below.

http://www.backupcentral.com/phpBB2/two-way-mirrors-of-external-mailing-lists-3/symantec-netbackup-18/can-backup-exec-read-netbackup-99718/

Regarding bad media and legacy tape drives I complete agree with Jeff. 
Restoring data using this method is more or less a crap shoot and anything you 
get is better than nothing.

-Jonathan

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jeff 
Cleverley
Sent: Monday, April 19, 2010 12:37 PM
To: Markus, Istvan
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] get back data from tape if fragment 1 deleted

Istvan,

You may not be able to use tar to recover data from the tape.  It
depends on how the tapes were written.  If they were multiplexed with
multiple streams of data going to them tar generally cannot read this.
 If they were written as a single stream you most likely can recover
data from the tape(s) using the mt command and options as David has
pointed out.

I've had instances where one tape failed to read or write in one drive
but worked in another.  If you have additional drives free you may try
disabling the drive it failed on last time and let it try to read from
another drive.

Jeff

On Mon, Apr 19, 2010 at 2:18 AM, Markus, Istvan <istvan.markus AT hp DOT com> 
wrote:
> NetBackup 6.5: Phase 2 import stops as fragment 1 is no more available:
>
>
>
> INF - Skipping backup id (backup_id), there is no fragment 1
>
> INF - Found no images matching the selection criteria that were ready for
> phase 2 import.
>
>
>
> Is there any way to get data from fragment 2?
>
>
>
> Any help would be much appreciated.
>
>
>
> Regards,
>
> Istvan
>
>
>
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>



-- 
Jeff Cleverley
Unix Systems Administrator
4380 Ziegler Road
Fort Collins, Colorado 80525
970-288-4611
_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu