That is correct. I had host A running ESXi 5.1 VMW_SATP_LSI, and host B running ESXi 5.5 VMW_SATP_ALUA -- both hosts were connected to same controller in an HA (dual path) configuration. Host B keeps disconnecting from the DS3524, and I wanted to know was it because both host need to be using the same Storage Array Type?
Also, as per the compatibility guide, MPP Plugin = NMP, SATP Plugin = VMW_SATP_ALUA and PSP Plugin = VMW_PSP_MRU and this is how I had it set.