> # Device Alias Requirements

> Device aliases have the following requirements:

> - You can only assign device aliases to pWWNs.
> - The mapping between the pWWN and the device alias to which it is mapped must have a one-to-one relationship. A pWWN can be mapped to only one device alias and vice versa.
> - A device alias name is restricted to 64 alphanumeric characters and may include one or more of the following characters:
> - a to z and A to Z
> - 1 to 9
> - - (hyphen) and _ (underscore)
> - $ (dollar sign) and ^ (up caret)

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