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Hello Andrew,
I 'm doing exactly the same thing as you described in your mail and had also
41-type errors with individual mailbox backup.
Since I changed the client read timeout to 1800 seconds on the client
properties under the universal settings tab, the timeout error disappeared.
Try this one and if you still get timeouts, put a higher value for the
client read timeout.
I also breaked up the mailbox list alphabetically and multiplex 8 mailboxes
at a time.
My performance is about 10000KBps for the IS Exchange backup and 400-800KBps
for the mailboxes but my mediaserver is connected to a 100 Mb Ethernet and
uses also LTO1 drives.
Robert
-----Original Message-----
From: Pearce, Andrew W. [mailto:apearce AT kforce DOT com]
Sent: 07 October 2003 13:33
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Brick-level Exchange Backup Performance
I'm using NBU 4.5 FP5 and trying to perform mailbox backups of Exchange 5.5.
The IS is about 150GB and both the Exchange server and NBU media server are
on 1Mb Ethernet. Tape library is sporting LTO1 drives. Regular IS/DS
Exchange backups run around 15000KBps (yeah, still trying to squeeze more
out). Mailbox backups run at only 400KBps, and often error out with a 41.
I have tried breaking up the file list to backup mailboxes alphabetically
(all the A's, then all the B's...) but jobs still die with a 41 when I get
to the Wheel of Fortune letters (R, S, T, L, N, E...). I have tried
multistreaming several letters at once, I have tried one at a time, and I
have tried one big fat job, but they always run really slow and often throw
41's.
Has anybody had similar issues? Overcome them?
Thanks!
Andrew
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<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff size=2>Hello
Andrew,</FONT></SPAN></DIV>
<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff size=2>I 'm
doing exactly the same thing as you described in your mail and had also 41-type
errors with individual mailbox backup.</FONT></SPAN></DIV>
<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff size=2>Since
I changed the client read timeout to 1800 seconds on the client properties
under
the universal settings tab, the timeout error disappeared. Try this one and if
you still get timeouts, put a higher value for the client read
timeout.</FONT></SPAN></DIV>
<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff size=2>I
also
breaked up the mailbox list alphabetically and multiplex 8 mailboxes at a
time.</FONT></SPAN></DIV>
<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff size=2>My
performance is about 10000KBps for the IS Exchange backup and 400-800KBps for
the mailboxes but my mediaserver is connected to a 100 Mb Ethernet
and uses also LTO1 drives.</FONT></SPAN></DIV>
<DIV><SPAN class=695195713-07102003></SPAN> </DIV>
<DIV><SPAN class=695195713-07102003><FONT face=Arial color=#0000ff
size=2>Robert</FONT> </SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Pearce, Andrew W.
[mailto:apearce AT kforce DOT com]<BR><B>Sent:</B> 07 October 2003
13:33<BR><B>To:</B> veritas-bu AT mailman.eng.auburn DOT
edu<BR><B>Subject:</B>
[Veritas-bu] Brick-level Exchange Backup Performance<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I'm using NBU 4.5
FP5
and trying to perform mailbox backups of Exchange 5.5. The IS is about
150GB and both the Exchange server and NBU media server are on 1Mb Ethernet.
Tape library is sporting LTO1 drives. Regular IS/DS Exchange
backups run around 15000KBps (yeah, still trying to squeeze more out).
Mailbox
backups run at only 400KBps, and often error out with a 41.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> I have tried
breaking up the file list to backup mailboxes alphabetically (all the A's,
then all the B's...) but jobs still die with a 41 when I get to the Wheel of
Fortune letters (R, S, T, L, N, E...). I have tried multistreaming
several letters at once, I have tried one at a time, and I have tried one big
fat job, but they always run really slow and often throw
41's.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Has anybody had
similar issues? Overcome them?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY:
Arial">Thanks!<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY:
Arial">Andrew<o:p></o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>
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