What is a World Wide Name (WWN)?

Trouble Shooting information related to Servers & Storage (HP, DELL, IBM)

What is a World Wide Name (WWN)?

Unread postby rajeevmahura » Sat Jul 05, 2008 11:01 am

A World Wide Name, or WWN, is a 64-bit address used in fiber channel networks to uniquely identify each element in a Fiber Channel network.
Soft Zoning utilizes World Wide Names to assign security permissions.
The use of World Wide Names for security purposes is inherently insecure, because the World Wide Name of a device is a user-configurable parameter.
For example, to change the World Wide Name (WWN) of an Emulex HBA, the users simply needs to run the `elxcfg` command.
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