This link will help you greatly.

http://portal2.legato.com/products/networker/diskbackup.cfm

Check out the whitepaper within the article.


DBO is great, but generally you need 3x a daily backup in disk space.  So
you would need about 1 TB in DBO devices.  I don't think 100GB would do much
for you.

At my location:  I backup 300 GB per day(5am and noon), all to disk devices.
At 5:30pm I stage the savesets which are 3 days old or older to tape and
remove them from the Disk Devices.

What results is about 2.5 days worth of recent backups on disk devices and
de-multiplexed savesets over 2.5 days old on tape.

DBO is wicked fast for restores and backup.  There is some compression in
the DBO format, but utilizing the compress asm on the client will pack the
data nicely.

--Shawn

----- Original Message -----
From: "Evan Gold" <egold AT FSA DOT COM>
To: <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>
Sent: Monday, October 27, 2003 5:19 PM
Subject: [Networker] legato "staging" info


> I rebuilding my legato 7 server and was considering using disk staging,
has
> anyone used this? is it worth it?
>
> I backup about 2TB a week, how much space do i need for staging to work?
Is
> 100gb disk space too small?
>
> how much will this speed up my backups and clones?
>
> is this a substitute for buying more tape drives?
>
> thank you in advance!
>
> --
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