in your opinion is possible to use multiple Esxi v.machines to create a sort of high availability service with an Openfiler iSCSi Storage?
incoming mail from email@example.com
/ | \
zbox1 zbox2 zbox3
\ | /
\ | /
zbox1 = zbox2 = zbox3
so if I've to turn off zbox1 to do maintenance I can still use zbox2 and zbox3 to receive messages, and if while zbox1 is turned off for maintenance and zbox2 "explode" (that quite enough on Murphi's Rule, cough cough... ) still zbox3 is receiveing mail, just in time to turn on zbox1 ...
is this clear? probably not, just ask me more if you need. Thanks 4 support.