[Linux-cluster] DR node in a cluster

[Jankowski, Chris]

Paras,

A curiosity question:

How do you make sure that your storage will survive failure of *either* of your site without loss of data and continuity of service?
What storage configuration are you using?

Thanks and regards,

Chris

From: linux-cluster-bounces at redhat.com [mailto:linux-cluster-bounces at redhat.com] On Behalf Of Paras pradhan
Sent: Thursday, 7 July 2011 02:15
To: linux clustering
Subject: [Linux-cluster] DR node in a cluster

Hi,

My GFS2 linux cluster has three nodes. Two at the data center and one at the DR site. If the nodes at DR site break/turnoff, all the services move to DR node. But if the 2 nodes at the data center lost communication with the DR node, I am not sure how does the cluster handles the split brain. So I am looking for some recommendation in this kind of scenario. I am usig Qdisk votes (=3) in this case.

--
Here is the cman_tool status output.


-
Version: 6.2.0
Config Version: 74
Cluster Name: vrprd
Cluster Id: 3304
Cluster Member: Yes
Cluster Generation: 1720
Membership state: Cluster-Member
Nodes: 3
Expected votes: 6
Quorum device votes: 3
Total votes: 6
Quorum: 4
Active subsystems: 10
Flags: Dirty
Ports Bound: 0 11 177
Node name: vrprd1.hostmy.com<http://vrprd1.hostmy.com>
Node ID: 2
Multicast addresses: x.x.x.244
Node addresses: x.x.x.96
--

Thanks!
Paras.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-cluster/attachments/20110706/5777eade/attachment.htm>