Patent ID: 8175745

Claim:
A method to audit portable cassettes removeably disposed in a data storage library, comprising: supplying a data storage library comprising a plurality of storage slots, a plurality of portable cassettes removeably disposed in one or more of said plurality of storage slots; supplying a pass-through accessor comprising a moveable fixturing apparatus, wherein said pass-through accessor is moveably disposed in said data storage library; disposing said pass-through accessor adjacent a first one of said plurality of storage slots; reading a first identifier from a first portable cassette disposed in said first storage slot; removing said first portable cassette from said first storage slot; attaching said first portable cassette to a first fixturing assembly disposed on said fixturing apparatus; reading a second identifier from a second portable cassette disposed in said first storage slot; removing said second portable cassette from said first storage slot; attaching said second portable cassette to a second fixturing assembly disposed on said fixturing apparatus.