you want to use bpexpdate to change the retention level 
of the backup images.

bpexpdate -HELP will give you the syntax required.

vmchange will only change the physical attributes of 
the media not what is contained on the media.

David

Quoting mike.marcell AT cntcorp DOT com:

> We have found a small truckload of offsite tapes that 
have expiration dates
> that are approaching or past. Most of these tapes 
aren't old at all, and
> have very few mounts on them.
> 
> Anyone know how to set the expiration date to null, 
or never on a tape from
> the command line?
> 
> I'm able to change the date, but I can't find out how 
to set it to "never"
> or "---"
> 
> Here's what I'm doing:    vmchange -exp 12/31/00 -m 
000211
> 
> This works fine to change the date to 12/31/00. I 
could change it to a date
> far, far out, but I'd rather set it to never like the 
others in it's pool.
> I can do it from the gui, but I'd rather script this 
and do it in mass if
> possible.
> 
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
=-=-=-=-=-=-=-=-=
>   Mike Marcell                                     
CNT Corp (The Arizona
> Republic)
>   mike.marcell AT cntcorp DOT com        Unix Systems 
Administrator
>   Phone:  (602)  444-4958                 Fax: (602)  
444-8010
>   Pager:   (602)  519-2270                 Cell: 
(602) 538-5265
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
=-=-=-=-=-=-=-=-=
> 
> 
> _______________________________________________
> Veritas-bu maillist  -  Veritas-
bu AT mailman.eng.auburn DOT edu
> 
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bu
> 



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
David A. Chapa
Consulting Manager
DataStaff, Inc.
847 413 1144