Have anyone experienced a whole SAN failure due by any reason ?
The general thinking is that "anything can fail" makes a person uncomfortable with
having everything in a single SAN.
I was told to double a SAN which means having two identical SANs with some sorts of replication to protect data in case a whole SAN failure.
In each SAN, I also have multipath IO, dual controller, dual switches...etc ?
Is it a overkill ?
Thanks for any idea out there.