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[Veritas-bu] Backup Performance Issues
2002-07-10 17:50:32
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The data is being backed up to a SpectraLogic 64K
tape library. There are 8 AIT tape drives.
The data is on Volume Manager controlled disks on
the Hitachi SAN. Networking is via fibre thru a
Brocade switch. The client server has a 1Gig Fast
Ethernet card with its ndd settings at 1000fdx, 1000hdx,
and autoneg_cap all on (1).
All of the machines have this same settings.
All other machines in the environment do not have
this problem of long backups.
Thanks,
Robert Richardson
-----Original Message-----
From: Brian Chase [mailto:vaxzilla AT jarai DOT org]
Sent: Wednesday, July 10, 2002 2:37 PM
To: Richardson, Robert
Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: Re: [Veritas-bu] Backup Performance Issues
To what are you backing up the data? Basically, what type of tape
drives, how many, and through what type of connection--i.e. over the
SAN, 1GB/s ethernet, 100MB/s ethernet? It looks like you've got some
sort of major bottleneck--I'd be willing to bet it's not being caused by
NetBackup.
-brian.
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<P><FONT SIZE=2>The data is being backed up to a SpectraLogic 64K</FONT>
<BR><FONT SIZE=2>tape library. There are 8 AIT tape drives.</FONT>
<BR><FONT SIZE=2>The data is on Volume Manager controlled disks on </FONT>
<BR><FONT SIZE=2>the Hitachi SAN. Networking is via fibre thru a</FONT>
<BR><FONT SIZE=2>Brocade switch. The client server has a 1Gig Fast</FONT>
<BR><FONT SIZE=2>Ethernet card with its ndd settings at 1000fdx, 1000hdx,</FONT>
<BR><FONT SIZE=2>and autoneg_cap all on (1).</FONT>
<BR><FONT SIZE=2>All of the machines have this same settings.</FONT>
<BR><FONT SIZE=2>All other machines in the environment do not have</FONT>
<BR><FONT SIZE=2>this problem of long backups.</FONT>
</P>
<BR>
<P><FONT SIZE=2>Thanks,</FONT>
<BR><FONT SIZE=2>Robert Richardson</FONT>
</P>
<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Brian Chase [<A HREF="mailto:vaxzilla AT jarai DOT
org">mailto:vaxzilla AT jarai DOT org</A>]</FONT>
<BR><FONT SIZE=2>Sent: Wednesday, July 10, 2002 2:37 PM</FONT>
<BR><FONT SIZE=2>To: Richardson, Robert</FONT>
<BR><FONT SIZE=2>Cc: 'veritas-bu AT mailman.eng.auburn DOT edu'</FONT>
<BR><FONT SIZE=2>Subject: Re: [Veritas-bu] Backup Performance Issues</FONT>
</P>
<BR>
<P><FONT SIZE=2>To what are you backing up the data? Basically, what type
of tape</FONT>
<BR><FONT SIZE=2>drives, how many, and through what type of connection--i.e.
over the</FONT>
<BR><FONT SIZE=2>SAN, 1GB/s ethernet, 100MB/s ethernet? It looks like
you've got some</FONT>
<BR><FONT SIZE=2>sort of major bottleneck--I'd be willing to bet it's not being
caused by</FONT>
<BR><FONT SIZE=2>NetBackup.</FONT>
</P>
<P><FONT SIZE=2>-brian.</FONT>
</P>
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