[Linux-cluster] Two node cluster, start CMAN fence the other node
Alex Re
are at gmx.es
Fri Apr 16 15:35:35 UTC 2010
Hi Chris,
for the switches ports stuff check out this url:
http://www.openais.org/doku.php?id=faq:cisco_switches
We have finally configured an internal (private) VLAN joining there one
NIC of each blade server. Now all cluster related traffic goes through
those interfaces (eth2 at both servers in our case), including the
traffic generated by the lock_dlm of the GFS2 filesystem, just created.
To check multicast connectivity, these are two very useful commands, "nc
-u -vvn -z <multicast_IP> 5405" to generate some multicast udp traffic
and "tcpdump -i eth2 ether multicast" to check it from the other node.
(eth2 in my particular case, of course).
I have been playing a little with the lock_dlm, but here is how my
cluster.conf looks now:
<?xml version="1.0"?>
<cluster config_version="7" name="VCluster">
<fence_daemon post_fail_delay="0" post_join_delay="25"/>
<clusternodes>
<clusternode name="nodeaint" nodeid="1" votes="1">
<multicast addr="239.0.0.1" interface="eth2"/>
<fence>
<method name="1">
<device name="nodeaiLO"/>
</method>
</fence>
</clusternode>
<clusternode name="nodebint" nodeid="2" votes="1">
<multicast addr="239.0.0.1" interface="eth2"/>
<fence>
<method name="1">
<device name="nodebiLO"/>
</method>
</fence>
</clusternode>
</clusternodes>
<cman expected_votes="1" two_node="1">
<multicast addr="239.0.0.1"/>
</cman>
<fencedevices>
<fencedevice agent="fence_ilo" hostname="nodeacn" login="user"
name="nodeaiLO" passwd="hp"/>
<fencedevice agent="fence_ilo" hostname="nodebcn" login="user"
name="nodebiLO" passwd="hp"/>
</fencedevices>
<rm>
<failoverdomains/>
<resources/>
</rm>
<dlm plock_ownership="1" plock_rate_limit="500"/>
<gfs_controld plock_rate_limit="500"/>
</cluster>
Next thing to add... I'm going to play a little with the quorum devices.
Hope it helps!
Alex
On 04/16/2010 05:00 PM, Jankowski, Chris wrote:
> eparate the cluster interconne
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-cluster/attachments/20100416/9764fcf1/attachment.htm>
More information about the Linux-cluster
mailing list