Generally storage vendors will have their own documentation and methods for configuring storage appliances for High Availability. In general, we want to ensure that the following is configured on each storage device:
Two or more physical NICs wired into two or more switches
Choose storage solutions with High Availability or failover options
For load sharing, use multiple IPs to allow separate traffic pathways to utilize multiple links
Configure storage with RAID 6 or RAID 10 to ensure that any disk failures will not result in corruption or data loss during the rebuild phase
For Virtual SAN, we want to ensure that multiple NICs on each host are dedicated to Virtual SAN traffic
When configuring jumbo frames, be careful when adding new hosts to the network as they may not be able to communicate if misconfigured