What is Zoning?
Zoning means restricting to the scope of an initiator (host) to a particular target (storage array) in fabric. An initiator can see only the devices from a particular storage array that is zoned to it.
Zoning provides security to data by restricting unauthorized access at the switch level.
A zone is a logical path between two devices that make communication between two devices.
Zoning is illustrated below with an example.
- In the above diagram, Server A and Storage A are the same zone called Zone 1. Server A can see devices only from Storage A. It cannot see any devices from Storage B and Storage C since its scope is restricted to Storage A only.
- In Zone 2, Server B, server C, Server D, and storage B are added. So Server B, server C, Server D can access devices from storage B.
- Server E, Server F, and Storage C are zoned together. So these servers can see devices from Storage C.