# more NUMBER_DATA_BUFFERS
32
# more SIZE_DATA_BUFFERS
262144
The server hosting the disk system resource
utilisation is normal.
What size data buffers
did you use and how many?
If you are running a cold
flat file backup you would think the jobs would be flying.
Have you asked your
storage admin to check what your storage array is doing?
Perhaps there are hot
spots?
What size raid groups are
you using to host the copy?
Have you checked the
server hosting the disks system resource utilisation?
From:
hemant.kalekar AT wipro DOT com [mailto:hemant.kalekar AT wipro DOT com]
Sent: 10 May 2010 11:49
To: Shekel Tal; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Slow
backup speed
Yes the netbackup is tuned.
Agents are installed and cold flat file
backup is done.
Thanks and
Regards
Hemant S Kalekar
09819949422
From: Shekel Tal
[mailto:Tal.Shekel AT uk.fujitsu DOT com]
Sent: Monday, May 10, 2010 3:06 PM
To: Hemant Kalekar (WI01 - Manage
IT); veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Slow
backup speed
Have you tuned you
NetBackup buffers?
Have a look at the
following technote and setup the size and number data buffers - http://support.veritas.com/docs/183702
Are you using agents and
mounting the image up after the split or just performing a cold flat file
backup after the split?
Regards,
Tal
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of hemant.kalekar AT wipro DOT com
Sent: 10 May 2010 09:07
To:
veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Slow backup
speed
HI
I am facing problems in backup speed for backing up SAP
databases.
My setup is as follows
I am using shadow image ie split sync for backing up my SAP
databases.The datasize is approximately 13TB.
My PVols are mounted from Hitachi 9990V storage and are attached to Sun
M9000 server.
My Svols are mounted from Sun storage 6140 and are attached
to Sun T5220 which is configured as media server in veritas netbackup6.0.
I have L1400 Tape Library from which 4 LTO4 drives are
presented to secondary server from which backup is taken,
Average speed per stream is 30MBPS which makes overall
throughput of 4*30=120MBPS.backup time is around 36 hours.
Thanks and
Regards
Hemant S Kalekar
09819949422
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