70 GB is only a theorical backup size in compressed mode calculated with the
nominal backup size 35 GB.
But sometimes, especially when you backup empty databases, the compression
can be more than 2:1
and you can backup 3 or 4 times more than the nominal size
----- Original Message -----
From: "clifford thurber" <cthurber AT concretemedia DOT com>
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Cc: <nbu-lserv AT datastaff DOT com>
Sent: Friday, February 16, 2001 3:05 PM
Subject: [Veritas-bu] compression and DLT 7000
> Hello,
> We are using Netbackup 3.2 on Solaris 7 with Quantam DLT 7000 Drives. We
> have the following line in our st.conf file
> DLT7k-data = 1,0x36,0,0x9639,4,0x84,0x83,0x0,0x85,3;
> Which I believe denotes that we have 70GB of storage in compressed mode.
I
> also believe that this is the theoretical limiton DLT 7000's using
> compression. The confusing part is that when I run the media list report I
> see tapes that are 87GB, 129GB and 111GB. Can someone tell me how this is
> even possible? Veritas was not able to give me an answer to this? Thanks
in
> advance I will summarize.
> Clifford
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|