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lunasox

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June 7th, 2019 16:00

Possible faults in Vplex Local

Hello, we have just purchased a Vplex Local and we are evaluating if we acquire another one to put together a meter cluster in the same Data Center, because we have some doubts about the possible errors that could have in a local cluster, because the Vplex is in the same Rack, for example that there was an electrical problem in the Rack and the whole cluster went out. I hope I have been clear and you can help me with these doubts.

allanbutler

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July 10th, 2019 08:00

Hi Lunasox, Vplex Metro clusters generally speaking assumes clusters will be some distance apart and in different data centers so will have independent power feeds. Having cluster-1 and 2 in the same DC will work but if powered from the same power feed / source you will not have redundancy there so a key feature of Vplex Metro HA will not be there is such a situation. But even in close proximity the Vplex should work as long as Vplex Wan-Com (cluster to cluster production data connections) and VPN (IP based management connections between clusters) are in place. However i am not sure about support of 2 cluster's in the 1 rack i have not seen customers do this specifically. Can i ask what Metro features interest you? if its Raid (mirroring) if you have more that 1 array connected on the back end it is possible to create Raid-1 local volumes so the volume is mirrored on the 1 Vplex cluster but across 2 storage arrays. This is similar protection as seen in Vplex distributed storage but of course is local and protects against the loss of 1 of the 2 arrays. Thanks Allan

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