A. Ports on host HBA should be zoned to either an A director or a B director.

B. Each host should have at least one path to an A director and at least one path to a B director on each fabric, for a total of four logical paths.

C. Each host should have either one path to an A director or one path to a B director on each fabric, for a minimum of two logical paths.

D. Dual fabrics should be merged into a single fabric to ensure all zones are in a single zoneset.