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What is a Storage Failover using ESX and GAD?

Question asked by Sam Zee on Jul 1, 2015
Latest reply on Sep 29, 2015 by Thamer Salah

I've been reading the Hitachi white paper on deploying ESX with GAD* and it mentions several failover scenarios that incur a "storage failover." However, the paper does not describe exactly what a storage failover is or what happens during a storage failover.

 

1. Can someone please define what happens during a storage failover? 

2. I noticed that in the October 24, 2014 version of the paper, a quorum failure incurs a storage failover. However, in the similar June 18, 2015 document** a storage failover is no longer listed for a quorum failure. Has a later version removed that issue?

 

Thanks!

 

* Deploy VMware vSphere Metro Storage Cluster on Hitachi Virtual Platform G1000 Using Global-Active Device

** Deploy VMware vSphere Metro Storage Cluster with Hitachi NAS Platform on Hitachi Virtual Platform G1000 Using Global-Active Device

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