we're looking at the best architecture for our Zimbra integration.
As we have 2 sites, 1 HP EVA 4000 SAN bay on each site, I thought about using RedHat Cluster Suite with the EVA CLX extension in order to move the cluster node to the second site while a volume isn't available anymore ...
But it isn't supported by HP, which supports only HP ServiceGuard as a cluster service.
Is it plan to support ServiceGuard as you're very near from HP (other threads seem to indicate that you've done many works with HP teams !) ???
Another solution is to create scripts to make the same operations that the CLX can do. It has already been done for the VMWare ESX3 servers, but the switching time is really noticeable (about 2 minutes), but that's not the best solution ...
Moreover, it's possible to have one mailstore instance on each site, but is it possible to have the same configuration on the both instances, with one instance sleeping, until the above scripts launch it while it stops the first one ?
I think my post isn't really simple to read, I don't know how to express myself about this problem !
If anyone wants to comment my post, all constructive answer is welcome.