[DRBD-user] no replication occurs between my drbd partitions

daniele visaggio visaggio.daniele at gmail.com
Thu Oct 9 13:48:42 CEST 2008

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


Hi guys,

my cluster is based on two trixbox server (ver 2.6.1.10), so these servers
are CentOS 5.2-based (linux 2.6.18-53.1.4.el5).

I installed drbd and kmod-drbd with yum, the exact version are
drbd82-8.2.6-1.el5.centos.i386.rpm<http://vault.centos.org/5.1/extras/i386/RPMS/drbd82-8.2.6-1.el5.centos.i386.rpm>and
kmod-drbd82-8.2.6-1.2.6.18_53.1.4.el5.i686.rpm.<http://vault.centos.org/5.1/extras/i386/RPMS/kmod-drbd82-8.2.6-1.2.6.18_53.1.4.el5.i686.rpm>

On both servers drbd partition is /dev/hda4, sizes are identical (8000 M per
partition).

Installation was ok, then I did: drbdadm create-md r0 and service drbd
start. This was fine, because with cat /proc/drbd I saw the syncronization
working, and finally the resource status was uptodate/uptodate.

Then I put some file on /share, the /dev/hda4 mountpoint, but the problem is
that I cannot see the same files on the other server.

Cat /proc/drbd now is:

version: 8.2.6 (api:88/proto:86-88)
GIT-hash: 3e69822d3bb4920a8c1bfdf7d647169eba7d2eb4 build by
buildsvn at c5-i386-build, 2008-06-02 10:18:26
 0: cs:StandAlone st:Primary/Unknown ds:UpToDate/DUnknown   r---
    ns:8192860 nr:0 dw:0 dr:8192861 al:0 bm:501 lo:0 pe:0 ua:0 ap:0 oos:0

Network link are ok, both servers can ping each other via eth0/eth1.

I'm a newbie in the cluster world, so sorry if this is a silly question...
:)

How can I fix this?

Thank you - Daniele

P.s: drbd.conf attached
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