John,

Thanks for this. All very useful information.

We currently run Netbackup 3.4 and it appears you cannot write to disk - does 
this mean I will have to upgrade to 4.5?

Following your suggestion, it does sound sensible if I put the tape unit with 
the disk drives in the other building and backup to tape after all the backups 
have been completed. This would give the added bonus that I could backup the 
disks during the day as it will not affect performance of the network.

Now all I need to do is write the proposal :)

Thanks again!

Timothy.

-----Original Message-----
From: John Stoffel [mailto:stoffel AT lucent DOT com] 
Sent: 04 September 2003 15:10
To: Timothy Arnold
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Backup to disk.



Timothy> I am hoping someone could give me some information regarding 
Timothy> backup to disk.

It works just fine, staging to disk, except for NDMP backups.  

Timothy> I would like to perform backups to disk to another building 
Timothy> (connected via 1gbps fibre) Monday thru Thursday and then 
Timothy> perform a full backup on a Friday to tape. Does anyone know if 
Timothy> Veritas Netbackup can write to disk?

Why don't you just stage *all* your backups to disk, and then write to tape 
when you're done?  

Timothy> Does anyone recommend any cheap NAS storage for this possible 
Timothy> project? Is it worth doing?

I'd probably just put a media server in a remote building which holds the disk 
drives locally.  We're using Zzyzx right now, though we've found that DMP with 
VxVM doesn't work out of the box.  Cheap box, 16 x 200gb drives, dual fibre 
channel, etc.

I think you can even get it with a fibre interface for longer distances, so you 
could even put the device in the far building if your have the spare fibre, 
while keeping the tape drive and server in another building.  

Stage to disks all the time, then Vault (or do it manually, not sure
how) the disk images to tape when you're ready.

John
   John Stoffel - Senior Unix Systems Administrator - Lucent Technologies
         stoffel AT lucent DOT com - http://www.lucent.com - 978-952-7548


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