[Linux-HA] Two-node clusters in split-sites
Robert.Hell at fabasoft.com
Thu Jan 22 04:32:57 MST 2009
we are planning to run multiple two-node clusters (with different
functions: database cluster, samba cluster, ...) in two different sites
with a fast, but unreliable network connections. All cluster nodes
replicate data with drbd.
I'm specially afraid of split-brain in this scenario because reliable
fencing is not possible in this split-site situation.
After investigating multiple cluster solutions I think Linux-HA is the
only project which provides a solution for our problem. We want to use
Linux-HA with one cluster node in each site and an external quorum
server (as described in the Heartbeat tutorial) without fencing.
Has anyone experiences with a solution like this and is this a solutions
which should work, is "supported" and is worth further investigations?
And last but not least: is it possible to run one quorum server for
multiple clusters (as mentioned before we have multiple two-node
clusters, but I only want to run one quorum server).
Many thanks and kind regards,
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