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List: veritas-bu
Subject: RE: [Veritas-bu] Tuning Netbackup
From: "David Chapa" <david.chapa () adic ! com>
Date: 2006-04-28 17:35:46
Message-ID: 96A586650E6357498A92FA40B70C677A01AD2BD3 () mail01dn ! adic ! com
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You definitely want to look at the bptm logs to see what is happening
and how you should affect your buffers. See attached document for
tuning help.
David
PS. Well I attached the document but it exceeded the 20K limit :-) (doug
loves it when I do that) so if you'd like the document let me know and
I'll send it
-----Original Message-----
From: veritas-bu-admin@mailman.eng.auburn.edu
[mailto:veritas-bu-admin@mailman.eng.auburn.edu] On Behalf Of Ambrose,
Monte
Sent: Friday, April 28, 2006 7:04 AM
To: nouresh LEGACY; veritas-bu
Subject: RE: [Veritas-bu] Tuning Netbackup
Nouresh
Without analyzing output for buffer waits from your bptm log - I have
found that more buffers generally works better than bigger buffers. Try
increasing the number of buffers and decrease the size a little.
Perhaps
SIZE=65536
NUM=64
Or
SIZE=131072
NUM=32
You will notice that they all add up to the same total but it can make a
big difference. I believe that the first option above also matches the
LTO3 hardware buffer size.
Monte
_____
From: veritas-bu-admin@mailman.eng.auburn.edu
[mailto:veritas-bu-admin@mailman.eng.auburn.edu] On Behalf Of nouresh
LEGACY
Sent: Thursday, April 27, 2006 10:46 PM
To: veritas-bu
Subject: [Veritas-bu] Tuning Netbackup
What major changes I'll have to do incase the OS is Linux.
The data transfer (throughput) rate is 14mb/sec.
cd /usr/openv/netbackup/logs/bptm
grep -i "KBytes/sec" log.*
transfer rate is 18632.911 Kbytes/sec
Let me explain u abt my setup:
NBU 5.1 MP3
HP StorageWorks MSL 6000
HP Ultrium LTO 3 cartridges
Changes made, but still struggling to get the speed.
/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS = 256kb
/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS = 16
After creating these files, backup was fired at the speed of 18mb/sec.
Do i have to change any directives in
/etc/sysctl.conf
Cheers,
Nouresh
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<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You definitely want to look at the bptm
logs to see what is happening and how you should affect your buffers.<span
style='mso-spacerun:yes'> </span>See attached document for tuning \
help.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>David<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>PS. Well I attached the document but it
exceeded the 20K limit </span></font><font size=2 color=navy face=Wingdings><span
style='font-size:10.0pt;font-family:Wingdings;mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;color:navy;mso-char-type:
symbol;mso-symbol-font-family:Wingdings'><span style='mso-char-type:symbol;
mso-symbol-font-family:Wingdings'>J</span></span></font><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> (doug loves it when I do that) so if you’d like the document
let me know and I’ll send it <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
veritas-bu-admin@mailman.eng.auburn.edu
[mailto:veritas-bu-admin@mailman.eng.auburn.edu] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Ambrose, Monte<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><st1:date
Month="4" Day="28" Year="2006"><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'>Friday, April 28, 2006</span></font></st1:date><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> \
</span></font><st1:time Hour="7" Minute="4"><font size=2 face=Tahoma><span \
style='font-size:10.0pt; font-family:Tahoma'>7:04 AM</span></font></st1:time><font \
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> nouresh LEGACY; veritas-bu<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Veritas-bu] Tuning
Netbackup</span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Nouresh<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Without analyzing output for buffer waits from your
bptm log - I have found that more buffers generally works better than bigger
buffers. Try increasing the number of buffers and decrease the size a
little.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Perhaps<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>SIZE=65536<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>NUM=64<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Or<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>SIZE=131072<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>NUM=32<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>You will notice that they all add up to the same total
but it can make a big difference. I believe that the first option
above also matches the LTO3 hardware buffer size.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Monte</span></font><o:p></o:p></p>
<div>
<div style='margin-left:.5in'>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></font></div>
</div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
veritas-bu-admin@mailman.eng.auburn.edu
[mailto:veritas-bu-admin@mailman.eng.auburn.edu] <b><span style='font-weight:
bold'>On Behalf Of </span></b>nouresh LEGACY<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, April 27, 2006
10:46 PM<br>
<b><span style='font-weight:bold'>To:</span></b> veritas-bu<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Veritas-bu] Tuning
Netbackup</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>What major changes I'll have to do incase the OS is
Linux. <o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The data transfer (throughput) rate is 14mb/sec.<br>
cd /usr/openv/netbackup/logs/bptm<br>
grep -i "KBytes/sec" log.*<br>
transfer rate is 18632.911 Kbytes/sec<o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Let me explain u abt my setup:<br>
NBU 5.1 MP3<br>
HP StorageWorks MSL 6000<br>
HP Ultrium LTO 3 cartridges<o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Changes made, but still struggling to get the speed.<br>
/usr/openv/netbackup/db/config/SIZE_DATA_BUFFERS = 256kb<br>
/usr/openv/netbackup/db/config/NUMBER_DATA_BUFFERS = 16<o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>After creating these files, backup was fired at the
speed of 18mb/sec.<o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Do i have to change any directives in<br>
/etc/sysctl.conf<o:p></o:p></span></font></p>
<p style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Cheers,<br>
Nouresh<o:p></o:p></span></font></p>
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