Patent ID: 7424621
Filing Date: 2008-09-09
Classification: G06F,G11B,Y10S

Abstract:
1. A method of recording data during successive data recording sessions on a data storage tape of a tape cartridge loaded in a tape drive, the sessions occurring at different times, the method comprising recording data in each recording session by: positioning the tape prior to the start of the data recording session so the tape is positioned to a start point at the start of a data set to be recorded during the session; after the session has started and during the data recording session, writing the data set to the tape; after the data set has been written to the tape, issuing a reposition command to the tape drive so the tape is repositioned; creating a code representative of the data in the data set that has been written during the recording session between the position command and the reposition command; after the tape drive receives the reposition command, writing the code into a memory incorporated within the tape cartridge; in response to the code being written into the memory, incrementing a code counter indicating a count of the number of codes written into the memory; and writing the count into a count field of the memory.