established, then when communication fails between sites you must fence
those nodes or risk data corruption when communication is
re-established,
-----
Steve
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@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Paras pradhan
Sent: Thursday, 7 July 2011 02:15
To: linux clustering
Subject: 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
Node ID: 2
Multicast addresses: x.x.x.244
Node addresses: x.x.x.96
--
Thanks!
Paras.
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