HP Q153090901 - Manual (Page 61)

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Sequential Access Device log page
The Sequential Access Device Log page is page 0Ch. The Page Length is 40h. Five parameters are
supported, all eight bytes long. With the exception of 0100h (cleaning required), they are
updated when a data set is logically written and cleared at the start of tape load; the values of
each parameter relate to the current tape.
A non-zero value of parameter 0100H (cleaning required) relates to the drive It indicates that a
condition requiring cleaning has been detected and a subsequent cleaning cycle has not yet been
completed. The parameter is updated asynchronously. It persists across hard resets and power
cycles, and is cleared when a cleaning cycle is performed.
Parm. Description
0001h The number of data bytes received from application clients during write command operations.
This is the number of bytes transferred over SCSI, before compression.
0002h The number of data bytes written to the media as a result of write command operations, not
counting the overhead from ECC and formatting. This is the number of data bytes transferred to
media, after compression.
0003h The number of data bytes read from the media during read command operations, not counting
the overhead from ECC and formatting. This is the number of data bytes transferred from media
with compression.
0004h The number of data bytes transferred to the initiator or initiators during read command
operations. This is the number of bytes transferred over SCSI, after decompression.
0100h Cleaning required, a non-volatile cleaning indication.