[Pacemaker] Couldn't find device [/dev/drbd/by-res/wwwdata]. Expected /dev/??? to exist

[Alisson Landim]

Hey, i notice something when i restarted both computers.

The problem of the kernel bug occurs when the second computer loads, until there the first computer was able to mount using your hint of "/dev/drbd1". The file system was mounted and everything were seemed to be fine.
When i started corosync on the second, both machines broadcast a message of kernel bug i said before and a first message that said:

>block drbd1: Split-Brain detected, dropping connection!

and then starts to describe the problem.

Also, the crm_mon says before failed actions:

WebFS:1    (ocf::heartbeat:Filesystem):    Started MyNode2 (unmanaged) FAILED

and on failed actions:

WebFS:1_start_0 (node=MyNode2, call=20, rc=1, status=complete): unknown error
 WebFS:1_stop_0 (node=MyNode2, call=22, rc=-2, status=Timed Out): unknown exec error

Date: Fri, 3 Sep 2010 15:16:13 -0700
From: adam.gandelman at linbit.com
To: pacemaker at oss.clusterlabs.org
Subject: Re: [Pacemaker] Couldn't find device [/dev/drbd/by-res/wwwdata]. Expected /dev/??? to exist






  
  Message body


On 09/03/2010 01:05 PM, Alisson Landim wrote:

  
I was following cluster from scratch guide and everything were fine
until i get here:

  

http://www.clusterlabs.org/doc/en-US/Pacemaker/1.1/html/Clusters_from_Scratch/ch08s05.html

  

The command:

grep ERROR: /var/log/messages | grep -v unpack_resources

  

Says:

Couldn't find device [/dev/drbd/by-res/wwwdata]. Expected /dev/??? to
existdation.org/enter_bug.cgi?product=Pacemaker




Don't know your DRBD version, but make sure you've got the
corresponding udev stuff installed.   If not, replace references to
/dev/drbd/by-res/* with their actual device nodes (/dev/drbd0, for
example)







-- 
: Adam Gandelman
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