How many Fire Channel zone sets can be active at one time for any given VSAN?

The Fibre Channel architecture allows only one zone set to be active per VSAN at a time, ensuring that zone membership and access policies remain consistent and non-conflicting across the fabric. When an administrator activates a new zone set, it replaces the currently active zone set, and all other configured zone sets remain inactive until explicitly activated.

Two simultaneous active zone sets per VSAN is not permitted; the Fibre Channel specification enforces a single active zone set to prevent overlapping or conflicting access control policies.

Three active zone sets per VSAN is not supported; having multiple active zone sets would create ambiguous device access rules that the Fibre Channel fabric cannot resolve.

Four active zone sets per VSAN is not supported; the Fibre Channel standard explicitly restricts activation to one zone set per VSAN to maintain a deterministic and manageable access control state.