If you try to commit the crm configuration or directly configure the cluster, you will get error regarding STONITH if it's not configured. STONITH provides effective, if rather drastic, protection against these problems. Multi-node error-prone contention in a cluster can have catastrophic results, such as if both nodes try writing to a shared storage resource.
As its name suggests, STONITH fences failed nodes by resetting or powering down the failed node. It's a technique for fencing in computer clusters.įencing is the isolation of a failed node so that it does not cause disruption to a computer cluster. STONITH is short for "Shoot The Other Node In The Head".
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