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<DIV><FONT color=#000080 face=Verdana>Hi, dearlist</FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080>We have done the steps from 1 to 5, but we can
still only see 2/7 osc devices on the MDS, but we can see 7 osc devices on a
mounted client. Then we run e2fsck on the osts, However, we get the same
result.</FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080>And we had the problem, after we do the step 1 to
4 and umount the filesystem from ldiskfs, then run the step 5,
we got the logs:</FONT></DIV>
<DIV><FONT color=#000080>According to the logs, we have no idea why there are 63
clients and where the MDS get the clients information with we removing
</FONT><FONT color=#000000>CONFIGS/* and linking down.</FONT></DIV>
<DIV><FONT color=#000080 face=Verdana></FONT> </DIV>
<DIV><FONT color=#000080 face=Verdana>
<DIV>Nov 12 09:02:37 beshome01 kernel: Lustre: 2474:0:(mds_fs.c:493:mds_init_server_data()) RECOVERY: service besfs2-MDT0000, 63 recoverable clients, last_transno 118077355</DIV>
<DIV>Nov 12 09:02:37 beshome01 kernel: Lustre: MDT besfs2-MDT0000 now serving dev (besfs2-MDT0000/5ceb6ad6-e810-9fae-4862-8ed0913bf7e7), but will be in recovery for at least 5:00, or until 63 clients reconnect. During this time new clients will not be allowed to connect. Recovery progress can be monitored by watching /proc/fs/lustre/mds/besfs2-MDT0000/recovery_status.</DIV></FONT></DIV>
<DIV><FONT color=#c0c0c0 face=Verdana>2009-11-12 </FONT></DIV><FONT
color=#000080 face=Verdana>
<HR style="WIDTH: 100px" align=left color=#b5c4df SIZE=1>
</FONT>
<DIV><FONT color=#c0c0c0 face=Verdana><SPAN>huangql</SPAN> </FONT></DIV>
<HR color=#b5c4df SIZE=1>
<DIV><FONT face=Verdana><STRONG>发件人：</STRONG> Andreas Dilger </FONT></DIV>
<DIV><FONT face=Verdana><STRONG>发送时间：</STRONG> 2009-11-12 06:19:53
</FONT></DIV>
<DIV><FONT face=Verdana><STRONG>收件人：</STRONG> Lu Wang </FONT></DIV>
<DIV><FONT face=Verdana><STRONG>抄送：</STRONG> lustre-discuss </FONT></DIV>
<DIV><FONT face=Verdana><STRONG>主题：</STRONG> Re: [Lustre-discuss] osc lost on
MDS server </FONT></DIV>
<DIV><FONT face=Verdana></FONT> </DIV>
<DIV><FONT face=Verdana>
<DIV>On 2009-11-11, at 05:59, Lu Wang wrote:</DIV>
<DIV>> Dear list,</DIV>
<DIV>>
Our MDS losts 5/7 osc devices after a reconfiguration:</DIV>
<DIV>> 1.umount all osts</DIV>
<DIV>>
2.tunfs.lustre --writeconf --mgs --mdt /dev/sda1</DIV>
<DIV>>
3.mount -t ldiskfs mdtdevice mountpoint</DIV>
<DIV>> 4.rm CONFIGS/*</DIV>
<DIV>> 5.mount -t lustre mdtdevice mountpoint</DIV>
<DIV></DIV>
<DIV>Where is it documented to delete all of the files in CONFIGS?</DIV>
<DIV>This deletes the action of step #2 above, and isn't a good idea.</DIV>
<DIV>Presumably there was also a step 4b to unmount the filesystem</DIV>
<DIV>from type lfdiskfs?</DIV>
<DIV></DIV>
<DIV>Cheers, Andreas</DIV>
<DIV>--</DIV>
<DIV>Andreas Dilger</DIV>
<DIV>Sr. Staff Engineer, Lustre Group</DIV>
<DIV>Sun Microsystems of Canada, Inc.</DIV>
<DIV></DIV>
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