We have a few ESXI hosts and a dell equallogic iscsi that connect to a 3750 switch.
Last night the network folks took down the switch temporarily to do an IOS upgrade. That seems to have screwed up our linux virtual machines because they all had read-only filesystems when I came in this morning.
I ran fsck on the machines and it seems to have corrected all the problems except one server.
My question is, how can we stop our machines from having corrupted file systems if we lose a switch in the future?