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05-28-2019 05:18 AM
05-28-2019 05:18 AM
Hello, is it possible for some VM that are not anymore protected by HA (storage HA lost sync) to be HA compliant once again even with a node failure.
I mean stretched cluster of 4 nodes (1 & 2 in zone A, 3 & 4 in zone B)
Node 3 have failed in zone B
VM that were "paired" on the node 3 with one of the node in zone A are ot anymore protected by HA.
If for exemple VM "File" have Primary data on Node 1 and Secondary data on node 3. If Node 1 fails also I will face "DU" for the VM "File". Do I have the possibility to "re dispatch" the data on the node 3 for that VM to the node 4 that is still available ? If yes how can I do it ?
Hope to be clear, thanks.
Solved! Go to Solution.
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05-28-2019 07:11 AM
05-28-2019 07:11 AM
SolutionNo.Simplivity maintains 2 copies only of the data.
A stretched cluster forces the copies to be maintained in distint failure domians.
IE we can survive a catastorphic failure of Zone A or Zone B
What you are describing if I am correct is a catasrophic failure of a zone combinded with an additional failing node and how to prevent this causing dataloss/unavailability.
There is no way to add a third copy of the data on either Zone.
A remote backup to another site would be the only way to ensure availability.
I am an HPE employee
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]