The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

LUN masking

The practice of enabling access to a particular addressable unit (AddrUnit) for a host on the storage network. This is done by creating an access control list associated with the LUN (the access path) between that AddrUnit and an array port to which it is bound. The access control list for a LUN contains the World Wide Name of each HBA port that is allowed to access that LUN within the array.