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Hi,<br>
<br>
I have LVM2 on top of DRBD and it seem to work fine(with the proper LVM
device filters: ), this is a file server. <br>
I use it with with Xen, so I do NOT have the haresource configure to
mount any LV as these are brought up by Xen.<br>
<br>
The problem is that when a host is brought down the hot standby is
brought on-line BUT the vgchange command is NOT issued at the right
time or not at all:<br>
<tt><b>Secondary node</b><br>
[root@deimos lvm]# lvscan<br>
inactive '/dev/DATA/VSI' [1.00 GB] inherit<br>
inactive '/dev/DATA/IMG' [10.00 GB] inherit</tt><br>
<br>
I also get many problems sometime when restarting my test nodes:<br>
<br>
<tt><b>Primary node</b><br>
[root@phobos ~]# drbdadm up VSI<br>
Failure: (124) Device is attached to a disk (use detach first)<br>
Command 'drbdsetup /dev/drbd0 disk /dev/hda3 /dev/hda7 0 --set-defaults
--create-device --on-io-error=detach' terminated with exit code 10<br>
[root@phobos ~]# drbdadm down VSI<br>
State change failed: (-12) Device is held open by someone<br>
Command 'drbdsetup /dev/drbd0 down' terminated with exit code 11<br>
</tt><br>
What is bizarre is that no one is using the device.<br>
As anyone a clue of what might be the issue?<br>
<br>
Here are more details about BDBD per node (phobos primary, deimos
secondary):<br>
<br>
<tt>[root@phobos ~]# dmesg|grep -i drbd<br>
drbd: initialised. Version: 8.0.5 (api:86/proto:86)<br>
drbd: SVN Revision: 3011 build by <a class="moz-txt-link-abbreviated" href="mailto:root@phobos.911hosting.net">root@phobos.911hosting.net</a>,
2007-08-21 07:13:32<br>
drbd: registered as block device major 147<br>
drbd: minor_table @ 0xdf3a66c0<br>
drbd0: disk( Diskless -> Attaching )<br>
drbd0: Found 6 transactions (324 active extents) in activity log.<br>
drbd0: max_segment_size ( = BIO size ) = 32768<br>
drbd0: drbd_bm_resize called with capacity == 24483060<br>
drbd0: resync bitmap: bits=3060383 words=95638<br>
drbd0: size = 11 GB (12241530 KB)<br>
drbd0: reading of bitmap took 6 jiffies<br>
drbd0: recounting of set bits took additional 1 jiffies<br>
drbd0: 1028 MB marked out-of-sync by on disk bit-map.<br>
drbd0: Marked additional 0 KB as out-of-sync based on AL.<br>
drbd0: disk( Attaching -> UpToDate )<br>
drbd0: Writing meta data super block now.<br>
drbd0: conn( StandAlone -> Unconnected )<br>
drbd0: receiver (re)started<br>
drbd0: conn( Unconnected -> WFConnection )<br>
drbd0: role( Secondary -> Primary )<br>
drbd0: conn( WFConnection -> WFReportParams )<br>
drbd0: Handshake successful: DRBD Network Protocol version 86<br>
drbd0: Split-Brain detected, dropping connection!<br>
drbd0: self
443A4281A8CB1E07:9C5C3767E0A4FAD8:AF7CB9EFB1B47A46:9E0545F53154E891<br>
drbd0: peer
C702719AE2A57D46:9C5C3767E0A4FAD8:AF7CB9EFB1B47A46:9E0545F53154E891<br>
drbd0: conn( WFReportParams -> Disconnecting )<br>
drbd0: error receiving ReportState, l: 4!<br>
drbd0: asender terminated<br>
drbd0: tl_clear()<br>
drbd0: Connection closed<br>
drbd0: conn( Disconnecting -> StandAlone )<br>
drbd0: receiver terminated<br>
[root@phobos ~]# lvscan<br>
inactive '/dev/DATA/VSI' [1.00 GB] inherit<br>
inactive '/dev/DATA/IMG' [10.00 GB] inherit<br>
<br>
[root@deimos ~]# dmesg|grep -i drbd<br>
drbd: initialised. Version: 8.0.5 (api:86/proto:86)<br>
drbd: SVN Revision: 3011 build by <a class="moz-txt-link-abbreviated" href="mailto:root@phobos.911hosting.net">root@phobos.911hosting.net</a>,
2007-08-21 07:13:32<br>
drbd: registered as block device major 147<br>
drbd: minor_table @ 0xd67b2320<br>
drbd0: disk( Diskless -> Attaching )<br>
drbd0: Found 6 transactions (154 active extents) in activity log.<br>
drbd0: max_segment_size ( = BIO size ) = 32768<br>
drbd0: drbd_bm_resize called with capacity == 24483060<br>
drbd0: resync bitmap: bits=3060383 words=95638<br>
drbd0: size = 11 GB (12241530 KB)<br>
drbd0: reading of bitmap took 12 jiffies<br>
drbd0: recounting of set bits took additional 5 jiffies<br>
drbd0: 0 KB marked out-of-sync by on disk bit-map.<br>
drbd0: disk( Attaching -> UpToDate )<br>
drbd0: Writing meta data super block now.<br>
drbd0: conn( StandAlone -> Unconnected )<br>
drbd0: receiver (re)started<br>
drbd0: conn( Unconnected -> WFConnection )<br>
drbd0: conn( WFConnection -> WFReportParams )<br>
drbd0: Handshake successful: DRBD Network Protocol version 86<br>
drbd0: Split-Brain detected, dropping connection!<br>
drbd0: self
C702719AE2A57D46:9C5C3767E0A4FAD8:AF7CB9EFB1B47A46:9E0545F53154E891<br>
drbd0: peer
443A4281A8CB1E07:9C5C3767E0A4FAD8:AF7CB9EFB1B47A46:9E0545F53154E891<br>
drbd0: conn( WFReportParams -> Disconnecting )<br>
drbd0: error receiving ReportState, l: 4!<br>
drbd0: asender terminated<br>
drbd0: tl_clear()<br>
drbd0: Connection closed<br>
drbd0: conn( Disconnecting -> StandAlone )<br>
drbd0: receiver terminated<br>
[root@deimos ~]# lvscan<br>
/dev/drbd0: open failed: Wrong medium type<br>
No volume groups found</tt><br>
<br>
<tt><br>
</tt>Thanks for any help which I am sure will help others too.<br>
<br>
Regards,<br>
<br>
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