World Wide Name (WWN)

Definition - What does World Wide Name (WWN) mean?

A World Wide Name (WWN) is a unique identifier assigned by the Institute of Electrical and Electronics Engineers (IEEE) to the manufacturers of network storage products. A manufacturer must include a WWN with all network storage devices.

WWN is also known as World Wide Identifier (WWID).

Techopedia explains World Wide Name (WWN)

A WWN is a number that is hard-coded into network storage devices, such as fiber channels and advanced technology attachments (ATA). To simplify, a WWN is like a MAC address but for network storage devices.

A WWN is primarily implemented in SANs with multiple attached storage devices, which helps system administrators (SA) uniquely categorize and identify storage segments.
recommended image
Recommended For You close
The Trouble With IPv6

Read More ยป

Popular White Papers

Techopedia Newsletter Sign-Up

Get Techopedia delivered to your inbox!