A customer has asked the SAN consultant for help with zoning best practices for a large datacenter. The consultant recommends zones based on which of the following?

Single initiators are the best practice for Fibre Channel zoning because it ensures that each zone contains only one initiator (HBA port) and its target ports on the storage array. This granular approach minimizes potential fabric disruptions, simplifies management, and enhances security by limiting communication to only necessary paths.

Storage array based zoning would group all ports of an array into one zone, potentially allowing multiple servers to see each other's LUNs or reducing security by not isolating initiators.

Operating system based zoning is too broad and does not provide the necessary granularity or security benefits of single-initiator zoning, as multiple HBAs from different servers might share an OS type.

HBA vendor based zoning is irrelevant to functional security and best practice zoning; zoning is based on WWNs, not the hardware vendor.