New subject: using NDMP for backups

13 Sep 2004


      Dang good to know!
Thanks again
Skip
_____
From: Timothy Sesow [mailto:tsesow@nsllc.com] 
Sent: Monday, September 13, 2004 1:27 PM
To: SKIP HOFMANN; toasters@mathworks.com
Subject: RE: using NDMP for backups
Just as an aside, don't use TDK media in the Scalar 24 library.  The center
of gravity on the cartridge is a little different than the others (eg, Fuji)
and the Scalar 24 will sometimes not detect the presence of the tape
cartridges in a slot due to placement of the sensor in the library.  Not
TDK's fault really, just a matter of compatibility.
This was my biggest problem in getting a Scalar 24 hooked up to the NetApp
(tapes just kept appearing and disappearing from the inventory).
Tim Sesow
VP Engineering
303-948-3360
cell 303-809-8070
-----Original Message-----
From: SKIP HOFMANN [mailto:SKIP.HOFMANN@ttisg.com] 
Sent: Monday, September 13, 2004 2:24 PM
To: Timothy Sesow; toasters@mathworks.com
Subject: RE: using NDMP for backups
Hey thanks very much for the info, it is very helpful.
Skip
_____
From: Timothy Sesow [mailto:tsesow@nsllc.com] 
Sent: Monday, September 13, 2004 1:16 PM
To: SKIP HOFMANN; toasters@mathworks.com
Subject: RE: using NDMP for backups
#1 - You can attach on of the drives from the Scalar 24 directly to the
NetApp (I have used this library with NetApp before and it works fine).
You can also attach the robotics (Medium Changer) to the NetApp, too, if you
wish to have the whole library on the NetApp.  NDMP will recognize any/all
of the devices and export them over the network for Veritas NetBackup to
find.
#2 - You can use "dump", but you have to move the cartridges in and out of
the drive yourself.  "dump" is really focused on a tape drive, not a full
tape library.  If you use Veritas, you wouldn't use the "dump" command, and
NetBackup (I don't know about BackupExec) can move the media for you.
NetBackup does not call "dump", it uses it's own commands over the network
to the NetApp, where the NDMP task on the NetApp then writes/reads the tape.
#3 - You need to get someone else on the list to answer this fully, but I
don't think there is any way to schedule backups on a NetApp with "dump".
Tim Sesow
VP Engineering
303-948-3360
cell 303-809-8070
-----Original Message-----
From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On
Behalf Of SKIP HOFMANN
Sent: Monday, September 13, 2004 1:54 PM
To: ''toasters@mathworks.com' '
Subject: using NDMP for backups
Hi all
Currently we have a R200, that house around a TB of data. We are currently
using Veritas 9.1 to do the backups over cifs shares, using this method our
backups jobs take a very long time to complete, and I have heard that this
method is not really a supported one or the preferred method. I would like
to use NDMP to backup my data. I have a few questions about this method.
#1 are backup tape device is an adic scalar 24. The tape drive is a IBM
ULTRIUM-TD2. Using NDMP can I hang this tape device right off the R200 and
just use the "dump" command?
#2 we currently use Veritas software, can I continue to use this application
if I'm using NDMP, or should I just use Dump?
#3 Can I use the dump command to do incremental backups and schedule
backups.
Thanks for any information
Skip
Skip Hofmann
Senior Network Administrator
TetraTech
Skip.Hofmann@ttisg.com mailto:Skip.Hofmann@ttisg.com
949 500 5286 cell
949 608 5801 office