[DRBD-user] ocfs2 over drbd

Carlos Xavier cbastos at connection.com.br
Tue Dec 11 12:17:10 CET 2007

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

I'm trying to run a OCFS2 filesystem over the DRBD layer.
Before trying with the OCFS2 i tested the system creating a LVM logical 
volume with the DRBD device and formated it with XFS. I could mount this 
files system on both machines with the role primary/secondary with no 
After that i removed all the lvm configuration and changed my DRBD 
configuration so as to allow primary/primary. I formated the hole partition 
as a OCFS2 filesystem, started the cluster service but when i try to mount 
the filesystem i gottis error:

root at apolo1:~# mount -t ocfs2 /dev/drbd0 /clusterdisk
mount.ocfs2: Invalid argument while mounting /dev/drbd0 on /clusterdisk. 
Check 'dmesg' for more information on this error.

this is my DRBD status:
root at apolo1:~# /etc/rc.d/drbd status
drbd driver loaded OK; device status:
version: 8.2.1 (api:86/proto:86-87)
GIT-hash: 318925802fc2638479ad090b73d7af45503dd184 build by 
root at apolo1.net.centralcard.com.br, 2007-11-29 13:33:04
 0: cs:Connected st:Primary/Primary ds:UpToDate/UpToDate C r---
    ns:1750104 nr:234083936 dw:235834040 dr:6814 al:657 bm:14288 lo:0 pe:0 
ua:0 ap:0
        resync: used:0/31 hits:14615958 misses:14288 starving:0 dirty:0 
        act_log: used:0/257 hits:205176 misses:705 starving:0 dirty:48 

and my OCFS@ status:
root at apolo1:~# /etc/init.d/o2cb status
Module "configfs": Loaded
Filesystem "configfs": Mounted
Module "ocfs2_nodemanager": Loaded
Module "ocfs2_dlm": Loaded
Module "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster cldisk: Online
Heartbeat dead threshold = 7
  Network idle timeout: 10000
  Network keepalive delay: 5000
  Network reconnect delay: 2000
Checking O2CB heartbeat: Not active

I'm on a Slackware system with this kernel version:
root at apolo1:~# uname -a
Linux apolo1 #1 SMP Tue Jun 19 14:52:25 CDT 2007 i686 Dual-Core 
AMD Opteron(tm) Processor 2210 AuthenticAMD GNU/Linux

Doing some research on the list i have found those two threads related to 
this issue:

Please can you tell me it this still apply to my kernel version? Can you 
point me the way to solve this issue?

Tanks in advance for your attention,


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