<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Thanks for your quick answer. <div><br></div><div>This is the complete error message (I shoud have posted that in the first place, sorry):</div><div><br></div><div><blockquote type="cite" class=""><div><font class="Apple-style-span" color="#000000">Dec 11 21:47:56 bftest-54 kernel: FAILED</font></div><div><font class="Apple-style-span" color="#000000">Dec 11 21:47:56 bftest-54 kernel: status = 1, message = 00, host = 0, driver = 08</font></div><div><font class="Apple-style-span" color="#000000">Dec 11 21:47:56 bftest-54 kernel: <6>sd: Current: sense key: Illegal Request</font></div><div><font class="Apple-style-span" color="#000000">Dec 11 21:47:56 bftest-54 kernel: Additional sense: Invalid command operation code</font></div><div><font class="Apple-style-span" color="#000000">Dec 11 21:47:56 bftest-54 kernel: drbd0: local disk flush failed with status 134217730</font></div></blockquote><br></div><div>What I forgot to mention is that DRBD runs on top of a dm device (dm-crypt), which in turn runs on top of the raid array. Could that cause the problem?</div><div><br></div><div><br></div><div><br></div><div><div><div>Am 15.12.2008 um 12:49 schrieb Lars Ellenberg:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>On Mon, Dec 15, 2008 at 10:32:16AM +0100, Thomas Reinhold wrote:<br><blockquote type="cite">Hi all, <br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I'm getting bazillions of disk flush error messages:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"> drbd0: local disk flush failed with status 134217730<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Googling the error code did not yield any result. Any idea what this could be?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">The system is Debian Etch with DRBD 8.0.13 (etch-backports):<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"> Linux bftest-54 2.6.18-6-amd64 #1 SMP Wed Oct 15 10:07:11 UTC 2008 x86_64<br></blockquote><blockquote type="cite"> GNU/Linux<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">The DRBD device is running on top of a RAID-1 set based on LSI 1078. <br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I have disabled disk flushing for now, and the error obiously has gone. Since<br></blockquote><blockquote type="cite">we are using an UPS, disabling disk flushing should not be a problem.<br></blockquote><blockquote type="cite">Nevertheless, I would like to know what the error message indicates. <br></blockquote><br>134217730<br>happens to be<br>0x8000002<br><br>that cannot be an accident?<br>it smells like a directly propagated scsi_execute_req return value.<br><br>to my understanding, lower level drivers should either return "0"<br>(Success) or some small negative error code (-EOPNOTSUPP, -ENXIO,<br>-ENODEV, maybe -EIO).<br>returning 0x8000002 to blkdev_issue_flus is unexpected.<br><br>do you have any<br> FAILED<br> status = %x, message = %02x, host = %d, driver = %02x<br>in your kernel log prior to that?<br><br><br>-- <br>: Lars Ellenberg<br>: LINBIT | Your Way to High Availability<br>: DRBD/HA support and consulting <a href="http://www.linbit.com">http://www.linbit.com</a><br><br>DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.<br>__<br>please don't Cc me, but send to list -- I'm subscribed<br>_______________________________________________<br>drbd-user mailing list<br><a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br><a href="http://lists.linbit.com/mailman/listinfo/drbd-user">http://lists.linbit.com/mailman/listinfo/drbd-user</a><br></div></blockquote></div><br></div></body></html>