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A:
In a two node cluster (where you are using two_node="1" in the cluster configuration, and w/o QDisk), there are several considerations you need to be aware of: If you are using per-node power management of any sort where the device is not shared ... more
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A:
Currently a quorum disk/partition may be used in clusters of up to 16 nodes. ... more
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A:
In a two node cluster (where you are using two_node="1" in the cluster configuration, and w/o QDisk), there are several considerations you need to be aware of: ... more
2 Likes · 1 Answer
A:
Tie-breakers are additional heuristics that allow a cluster partition to decide whether or not it is quorate in the event of an even-split - prior to fencing. A typical tie-breaker construct is an IP tie-breaker, sometimes called a ping node. With ... more
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A:
We had to allow two-node clusters, so we made a special exception to the quorum rules. There is a special setting "two_node" in the /etc/cluster.conf file that looks like this: This will allow one node to be considered enough to establish a quorum. ... more
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A:
In older versions of the Cluster Project, a quorum disk was needed to break ties in a two-node cluster. Early versions of Red Hat Enterprise Linux 4 (RHEL4) did not have quorum disks, but it was added back as an optional feature in RHEL4U4. In RHCS ... more
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