ESXi 5.1 with 16 Hosts (10G) Connection to Cisco 6500 and Fibre to EMC VNX 5300 SAN.
We have been having issue where when we vMotion a live Mailbox Server although it only takes less than a minute we lose several pings and it does not look like a clean memory swap to me even though over vNotion Network is on an isolated VLAN (VmkPings) all good.
Problem is users complain they lose access to mail and have to re-enter their login credentials.
The Mailbox Server is 2008 R2 16Gig Ram around 2 TB 5 x DB's
Appreciate and insite here