During the firmware upgrade to version 2.0.2q everything went well until I upgraded the 6124 Interconnects. I first upgraded the secondary then the primary. During both upgrades the ESX Hosts reported loss of access to the datastore attached to the hosts. The guests continued to ping which leads me to believe that the host did not really loose access because the guests run from the datastore reported as lost in vCenter. Within 8 mins or so the storage error corrected. My question, is this normal behavior. Has anyone else seen this behavior during interconnect upgrades?