Netbackup is IMAGE centric and not TAPE centric, so 
just because you have 4 tapes that were written to last 
night, the IMAGES may only require 3 tapes upon 
duplication.

No compression, just processing images versus tape.

Hope this helps
david



Quoting clifford thurber <cthurber AT concretemedia DOT com>:

> Hello,
> I have an offsite class configure to back up our 
network with a schedule
> for Sunday night. On monday when I ran:
> bpimagelist -hoursago 24 -class offsite | grep CIB | 
sort -u | awk '{print
> $9}'
>
> I saw four tapes in the four tapes listed.  Now 
yesterday when I went to
> duplicate Sunday nights backups to be sent offsite I 
see that Netbackup
> only used three tapes. So I am wondering how this is 
possible does
> bpduplicate use some form of compression?
>
> Cliff
>
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> 



<><><><><><><><><><><><><><><><><><><><>
David A. Chapa
Consulting Manager
DataStaff, Inc.
847 413 1144
http://www.consulting.datastaff.com
---------------------------------------
NBU-LSERV AT datastaff DOT com - Adv. Scripting