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I've got a tricky problem here. I backup about 300 servers - 250 Windows
and about 50 UNIX/AIX/Linux onto 1 - 6 LTO tape drive library (StorageTek
L180). All the AIX boxes are primo ... IBM p630's, p650's and p670's. Only
the p670s have multiple LPARs running but each has at least 1 processor, 1-2
gig ram and a gigabyte NIC card assigned. We've just introduced the AIX
boxes into the backup environment and the new Netbackup Media server is a
LPAR on the p670 also. Needless to say many of these servers' backup speeds
are screaming (10,000 to 23,000 kb per sec) ... but about 7 of the AIX
clients have speeds of less than 500 kb per second (all stats are from
folder backups of more than 1 gig).
The only buffer's fine tuning I have setup are on the master server;
NUMBER_DATA_BUFFERS file in my /usr/openv/netbackup folder that is set to
256 and a NET_BUFFER_SZ file that is set to 65536. Should I have any
similar files on the clients?
The network engineer has run FTP tests, compared the NIC/Switch settings
with the better performers and has not noticed any differences and the get
and put tests are fine.
Does anyone have some suggestions as to what I can do to increase the backup
performance on these boxes?
Thanks for your help,
Mike Day
mday AT qrs DOT com
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<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3D"Comic Sans =
MS"><span
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-bidi-font-family:Arial;
color:blue'>I've got a tricky problem here.<span
style=3D'mso-spacerun:yes'> </span>I backup about 300 servers - =
250 Windows
and about 50 UNIX/AIX/Linux onto 1 - 6 LTO tape drive library =
(StorageTek
L180).<span style=3D'mso-spacerun:yes'> </span>All the AIX boxes =
are primo ...
IBM p630's, p650's and p670's.<span
style=3D'mso-spacerun:yes'> </span>Only the p670s have multiple =
LPARs
running but each has at least 1 processor, 1-2 gig ram and a gigabyte =
NIC card
assigned.<span style=3D'mso-spacerun:yes'> </span>We've just
introduced the AIX boxes into the backup environment and the new =
Netbackup
Media server is a LPAR on the p670 also.<span =
style=3D'mso-spacerun:yes'>
</span>Needless to say many of these servers' backup speeds are =
screaming
(10,000 to 23,000 kb per sec) ... but about 7 of the AIX clients have
speeds of less than 500 kb per second (all stats are from folder =
backups of
more than 1 gig).<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3D"Comic Sans =
MS"><span
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-bidi-font-family:Arial;
color:blue'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3D"Comic Sans =
MS"><span
style=3D'font-size:10.0pt;font-family:"Comic Sans =
MS";mso-bidi-font-family:Arial;
color:blue'>The only buffer's fine tuning I have setup are on the =
master
server; </span></font><b style=3D'mso-bidi-font-weight:normal'><font =
size=3D2
color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue;font-weight:bold;mso-bidi-font-weight:normal'>NUMBER_DATA_BUF=
FERS</span></font></b><font
size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:blue'> file in my /usr/openv/netbackup folder that is set to 256 =
and a <b
style=3D'mso-bidi-font-weight:normal'><span =
style=3D'font-weight:bold;mso-bidi-font-weight:
normal'>NET_BUFFER_SZ</span></b> file that is set to 65536.<span
style=3D'mso-spacerun:yes'> </span>Should I have any similar =
files on the
clients?<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>The network engineer has run FTP =
tests,
compared the NIC/Switch settings with the better performers and has not =
noticed
any differences and the get and put tests are =
fine.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>Does anyone have some suggestions =
as to
what I can do to increase the backup performance on these boxes?<span
style=3D'mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>=
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>Thanks for your =
help,<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>Mike =
Day<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>mday AT qrs DOT com</span></font><font =
size=3D2
color=3Dblue face=3D"Comic Sans MS"><span =
style=3D'font-size:10.0pt;font-family:"Comic Sans MS";
mso-bidi-font-family:Arial;color:blue'><o:p></o:p></span></font></p>
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