Veritas-bu

Re: [Veritas-bu] Backing up a SAN

2007-09-25 16:13:17
Subject: Re: [Veritas-bu] Backing up a SAN
From: "Preston, Douglas L" <dpreston AT LANDAM DOT com>
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Tue, 25 Sep 2007 15:58:00 -0400
If you find a way let me know.  

I have 1 master, 1 media and 5 san media servers.  The san media servers
are way too stressed during the backup of their millions of small files.


On some of our database servers we use clone drives at the san level and
we snap the clones off and attach them to the master server and the
media server and back them up as local drives.  Once all backups are
done for the night we snap them back to the original machines to be
resynchronized with the primary disk.

I experimented with a small 100 mb lun between the media server and the
master server and windows did not see the changes on the media server
that were made to the drive on the master server.  Only way to get it to
see the changes was to remove the lun mapping and re attach it.  I think
you will find that you will lose a lot of data doing such an operation
in real life.  



Doug Preston
Systems Engineer
Land America Tax and Flood Services
Phone 626-339-5221 Ext 1104
Email  dlpreston AT landam DOT com


------------------------------------------------------------------------
------------
NOTICE: This electronic mail transmission may constitute a communication
that is legally privileged. It is not intended for transmission to, or
receipt by, any unauthorized persons. If you have received this
electronic mail transmission in error, please delete it from your system
without copying it, and notify the sender by reply e-mail, so that our
address record can be corrected.
------------------------------------------------------------------------
------------




-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Johnson,
Eric
Sent: Tuesday, September 25, 2007 10:58 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Backing up a SAN

How do most people back up SAN data with NetBackup? Currently, we have a
legacy setup where the NB client on each SAN-connected host system backs
up the SAN mounts that it sees as a regular file system. Obviously, this
is very inefficient as it puts load on each client and requires
additional network traffic.

 

I thought about a media server connected directly to the SAN, but then
there are locking issues with concurrent access to LUNs that are in use
by the client systems.


Can this be done properly without some sort of extra software/hardware
solution?

 

Eric

 


_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu

<Prev in Thread] Current Thread [Next in Thread>