Hi Balaji,<div><br></div><div>Yes, the reported message is harmless ... However, you can try following </div><div><br></div><div>1) I would suggest you to set the filter setting in lvm.conf to properly scan your mpath* devices and local disks. </div>
<div>2) Enable blacklist section in multipath.conf eg:</div><div><br></div><div><div>blacklist {</div><div> devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"</div><div> devnode "^hd[a-z]"</div>
<div>}</div></div><div><br></div><div># multipath -v2 </div><div><br></div><div>Observe the box. Check whether that helps ...</div><div><br></div><div><br></div><div>Regards, </div><div><br><br><div class="gmail_quote">On Wed, Jun 15, 2011 at 12:16 AM, Balaji S <span dir="ltr"><<a href="mailto:skjbalaji@gmail.com">skjbalaji@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi,<div>In my setup implemented 10 tow node cluster's which running mysql as cluster service, ipmi card as fencing device.</div>
<div><br></div><div>In my /var/log/messages i am keep getting the errors like below,</div>
<div><br></div><div><div>Jun 14 12:50:48 hostname kernel: end_request: I/O error, dev sdm, sector 0</div><div>Jun 14 12:50:48 hostname kernel: sd 3:0:2:2: Device not ready: <6>: Current: sense key: Not Ready</div><div>
Jun 14 12:50:48 hostname kernel: Add. Sense: Logical unit not ready, manual intervention required</div><div>Jun 14 12:50:48 hostname kernel: </div><div>Jun 14 12:50:48 hostname kernel: end_request: I/O error, dev sdn, sector 0</div>
<div>Jun 14 12:50:48 hostname kernel: sd 3:0:2:4: Device not ready: <6>: Current: sense key: Not Ready</div><div>Jun 14 12:50:48 hostname kernel: Add. Sense: Logical unit not ready, manual intervention required</div>
<div>Jun 14 12:50:48 hostname kernel: </div><div>Jun 14 12:50:48 hostname kernel: end_request: I/O error, dev sdp, sector 0</div><div>Jun 14 12:51:10 hostname kernel: sd 3:0:0:1: Device not ready: <6>: Current: sense key: Not Ready</div>
<div>Jun 14 12:51:10 hostname kernel: Add. Sense: Logical unit not ready, manual intervention required</div><div>Jun 14 12:51:10 hostname kernel: </div><div>Jun 14 12:51:10 hostname kernel: end_request: I/O error, dev sdc, sector 0</div>
<div>Jun 14 12:51:10 hostname kernel: printk: 3 messages suppressed.</div><div>Jun 14 12:51:10 hostname kernel: Buffer I/O error on device sdc, logical block 0</div><div>Jun 14 12:51:10 hostname kernel: sd 3:0:0:2: Device not ready: <6>: Current: sense key: Not Ready</div>
<div>Jun 14 12:51:10 hostname kernel: Add. Sense: Logical unit not ready, manual intervention required</div><div>Jun 14 12:51:10 hostname kernel: </div><div>Jun 14 12:51:10 hostname kernel: end_request: I/O error, dev sdd, sector 0</div>
<div>Jun 14 12:51:10 hostname kernel: Buffer I/O error on device sdd, logical block 0</div><div>Jun 14 12:51:10 hostname kernel: sd 3:0:0:4: Device not ready: <6>: Current: sense key: Not Ready</div><div>Jun 14 12:51:10 hostname kernel: Add. Sense: Logical unit not ready, manual intervention required</div>
</div><div><br></div><div><br></div><div>when i am checking the multipath -ll , this all devices are in passive path.</div><div><br></div><div>Environment :</div><div><br></div><div>RHEL 5.4 & EMC SAN</div><div><br></div>
<div>Please suggest how to overcome this issue. Support will be highly helpful.</div><div>Thanks in Advance</div><div> <br clear="all"><br>-- <br>Thanks,<br>BSK<br>
</div>
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