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<div class=Section1>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Hi all,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>I have a
question regarding a few error messages presented after a client has mounted
the File System. The FS mounted ok and is useable but the LusterErrors do not
look normal. The client does not have IB connectivity to the MDS/OSS but uses “tcpX”
to access the MDSs/OSSs. MDSs and OSSs are inter-connected with IB. The
following are the configurations:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>MDS1:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>RHEL
5.3, Lustre 1.8.1.1, MGS and MDS on the same external storage drive; managed by
heartbeat v1 for failover<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp2(eth4) 10.103.30.201<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp3(eth5) 10.103.30.101<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
o2ib0(ib0) 10.103.34.201<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
02ib1(ib1) 10.103.34.101<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>modprobe.conf:
options lnet networks=o2ib0(ib0),o2ib1(ib1),tcp2(eth4),tcp3(eth5)<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>MGS/MDS
Parameters: lov.stripesize=25M lov.stripecount=1 <a
href="mailto:failover.node=10.103.34.202@o2ib,10.103.34.102@o2ib1">failover.node=10.103.34.202@o2ib,10.103.34.102@o2ib1</a>
mdt.group_upcall=/usr/sbin/l_getgroups<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>MDS2:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>RHEL
5.3, Lustre 1.8.1.1, pointing to the same external storage drive as MDS1;
managed by heartbeat v1 failover<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp2(eth4) 10.103.30.202<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp3(eth5) 10.103.30.102<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
o2ib0(ib0) 10.103.34.202<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
02ib1(ib1) 10.103.34.102<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>options
lnet networks=o2ib0(ib0),o2ib1(ib1),tcp2(eth4),tcp3(eth5)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>OSS1:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>RHEL
5.3, Lustre 1.8.1.1, pointing to 16 OSTs on SAN storage; mount 8 odd number
OSTs managed by heartbeat v1 for failover to OSS2<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp4(eth4) 10.103.31.203<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp5(eth5) 10.103.31.103<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
o2ib0(ib0) 10.103.34.203<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
02ib1(ib1) 10.103.34.103<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>options
lnet networks=o2ib0(ib0),o2ib1(ib1),tcp4(eth4),tcp5(eth5)<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>OSTs
definition: Parameters: <a
href="mailto:mgsnode=10.103.34.201@o2ib,10.103.34.101@o2ib1">mgsnode=10.103.34.201@o2ib,10.103.34.101@o2ib1</a>
<a href="mailto:failover.node=10.103.34.204@o2ib,10.103.34.104@o2ib1">failover.node=10.103.34.204@o2ib,10.103.34.104@o2ib1</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>OSS2:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>RHEL
5.3, Lustre 1.8.1.1, pointing to same 16 OSTs on SAN storage as OSS1; mount 8
even number OSTs managed by heartbeat v1 for failover to OSS1<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp4(eth4) 10.103.31.204<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>10Ge
tcp5(eth5) 10.103.31.104<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
o2ib0(ib0) 10.103.34.204<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Infiniband
02ib1(ib1) 10.103.34.104<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>options
lnet networks=o2ib0(ib0),o2ib1(ib1),tcp4(eth4),tcp5(eth5)<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>OSTs
definition: Parameters: <a
href="mailto:mgsnode=10.103.34.201@o2ib,10.103.34.101@o2ib1">mgsnode=10.103.34.201@o2ib,10.103.34.101@o2ib1</a>
<a href="mailto:failover.node=10.103.34.204@o2ib,10.103.34.104@o2ib1">failover.node=10.103.34.204@o2ib,10.103.34.104@o2ib1</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Client:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>RHEL4.5,
Lustre 1.6.6 or RHEL5.3, Lustre 1.8.1.1<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Ge
tcp4(eth2) 10.103.31.129 </span><span style='font-size:14.0pt;font-family:Wingdings;
color:#1F497D'>à</span><span style='font-size:14.0pt;color:#1F497D'> OSS
Channel<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>Ge
tcp2(eth3) 10.103.30.129 </span><span style='font-size:14.0pt;font-family:Wingdings;
color:#1F497D'>à</span><span style='font-size:14.0pt;color:#1F497D'> MDS
Channel<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span
style='font-size:14.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;color:#1F497D'>options
lnet networks=tcp2(eth3),tcp4(eth2)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>The following
messages are from RHEL4.5, Lustre 1.6.6:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Dec 15 22:09:32
bg8mo29sz kernel: LustreError: 29975:0:(events.c:465:ptlrpc_uuid_to_peer()) No
NID found for 10.103.34.202@o2ib<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Dec 15 22:09:32
bg8mo29sz kernel: LustreError:
29975:0:(client.c:69:ptlrpc_uuid_to_connection()) cannot find peer
10.103.34.202@o2ib!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Dec 15 22:09:32
bg8mo29sz kernel: Lustre: spfs-clilov-000001020463f400.lov: set parameter
stripesize=25M<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Dec 15 22:09:32
bg8mo29sz kernel: Lustre: Skipped 1 previous similar message<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Dec 15 22:09:32
bg8mo29sz kernel: Lustre: Client spfs-client has started<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>The following
messages are from RHEL5.3, Lustre 1.8.1.1:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Lustre:
MGC10.103.30.201@tcp2: Reactivating import<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>LustreError:
3200:0:(events.c:460:ptlrpc_uuid_to_peer()) No NID found for 10.103.34.202@o2ib<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>LustreError:
3200:0:(client.c:69:ptlrpc_uuid_to_connection()) cannot find peer 10.103.34.202@o2ib!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>LustreError:
3200:0:(events.c:460:ptlrpc_uuid_to_peer()) No NID found for 10.103.34.204@o2ib<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>LustreError:
3200:0:(client.c:69:ptlrpc_uuid_to_connection()) cannot find peer
10.103.34.204@o2ib!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Lustre: Client
spfs-client has started<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>I couldn’t
figure out whether there is a configuration error in the MDS and OSS failover
setup or if this is harmful warning. I would think that this setup should work
and the client can be outside of the IB network. Any hint from anyone on this? As
I mentioned earlier the FS works fine after mounting. Should I just ignore
these error messages?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Thanks in
advance.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><i><span style='font-size:20.0pt;color:#1F497D'>Steve<o:p></o:p></span></i></b></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><i><span style='font-size:16.0pt;color:#1F497D'>Stephen
Chu<o:p></o:p></span></i></b></p>
<p class=MsoNormal><b><span style='font-size:12.0pt;color:#1F497D'>AT&T
Labs CSO<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='color:#1F497D'>C5-3C03<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>200 Laurel Ave<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Middletown, NJ<o:p></o:p></span></p>
<p class=MsoNormal><a href="mailto:stephenchu@att.com">stephenchu@att.com</a><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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