<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">Thanks Lars for your reply.</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">DRBD is used in conjunction with Linux-HA in a High Availability configuration to replicate data between the Active and Standby servers.</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">Our product is running LVM (Logical Volume Manager) on top of DRBD.</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">We are not using the nfs. The last point is not applicable in our case. </span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">And please can you explain bit more the below mentioned cases by you and how to detect/verify them when the issue “Device is held open by someone” is occurred.</span></p>
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<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">Regards,</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">Dileep Nayak</span></p><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid"><br> 6. Re: DRBD device held open by someone (Lars Ellenberg)<br> <br></blockquote>Message: 6<br>
Date: Wed, 22 Jun 2011 00:01:49 +0200<br>From: Lars Ellenberg <<a href="mailto:lars.ellenberg@linbit.com">lars.ellenberg@linbit.com</a>><br>Subject: Re: [DRBD-user] DRBD device held open by someone<br>To: <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
Message-ID: <20110621220149.GF21892@
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">barkeeper1-xen.linbit><br>Content-Type: text/plain; charset=iso-8859-1<br><br>On Tue, Jun 21, 2011 at 10:10:41AM +0530, Dileep Nayak wrote:<br>
> TThanks Matt for your reply to the issue "*DRBD device held open by someone*<br>> ".<br>> Today the below problem has been seen again.<br>><br>><br>> State change failed: (-12) Device is held open by someone<br>
<br><i>Sometimes it is just udev or equivalent doing a race.<br>Sometimes it is a unix domain socket or similar still held open<br>(won't necessary show up in lsof/fuser).<br>Sometimes it is some device mapper targets not yet taken down.<br>
Sometimes it is nfs locks not being properly released (in time).<br><br>What do you use DRBD for, what sits on top of it?</i> <br><br>--<br>: Lars Ellenberg<br>: LINBIT | Your Way to High Availability<br>: DRBD/HA support and consulting <a href="http://www.linbit.com/" target="_blank">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><br>------------------------------</blockquote>