HyperFlex stretched clusters and drive failures

[patrickbingham]

Is this correct?  That, should one or two drives fail in a stretched cluster environment, the cluster fails over to the remote site?  I don't think it is but either way the documentation should read more clearly.

[RedNectar]

Hi @patrickbingham ,

You have read correctly but perhaps not completely.

If one, two or more drives fail in the same node, that is like a single node failre. No failover. The contents of the drives are rebuilt typically in the order of seconds (flash) or minutes (spinning disk) rather than hours. Once the data is protected again, you go back to square one.

If during the seconds/minutes of the rebuild, a drive on a SECOND node in the SAME site fails, the cluster will fail over to the second site for the time it takes to rebuild. 

So at the end of the day you have an extemely efficient highly redundant cluster.

I hope this helps

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