HP Surestore Tape Library Model 10/180 HP Surestore Bridge FC 2/1 LV and FC 4/ - Page 36
Buffered Tape Writes, such as sending a Write File mark, a good status means all prior commands
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Buffered Tape Writes Buffered Tape Writes is an option designed to enhance system performance. By returning status on consecutive write commands prior to the tape device receiving data, Buffered Tape Writes remove the latency of waiting for responses from the tape device. In the event that data does not transfer correctly for any reason, the bridge will return a check condition on a subsequent command. Commands other than Write(6) are not issued until status is received for any pending write. Also, status is not returned until the device completes the command. For instance, when a synchronizing command is sent to a drive, such as sending a Write File mark, a good status means all prior commands have been successfully completed and data has been successfully written to the medium. This is appropriate for such tasks as file backup/restore. For more information, see SCSI on page 89. 38 Buffered Tape Writes Chapter 2