Reference Guide

Chapter 4 SCSI Commands
LOG SENSE Command (4Dh)
DLT-S4 Interface Reference Guide 75
Sequential Access Device
Log Page (0Ch)
4
This page provides a standardized way to report the amount of data
transferred between the tape drive and the host.
Figure 33 Sequential Access
Device LOG SENSE Page
Block — Header Format
Table 45 Sequential Access
Device LOG SENSE Header —
Field Descriptions
ASCII String
for Event n
The text of the parameters with Parameter Code values that are an even multiple of 10h
include a “Packet #” that is a value from 0 to 255. The drive assigns this internal number
when the packet is written to EEPROM. A value of 0 is normally the oldest packet, but
packet numbers wrap back to 0 after reaching 255.
Bit
Byte
7 6 5 4 3 2 1 0
0 Page Code (0Ch)
1 Reserved
2 — 3
(MSB)
Page Length
(LSB)
Field Description
Page Code Echoes the page code specified in the
LOG SENSE CDB.
Page Length Specifies the total number of bytes contained in this log
page, excluding the 4 bytes that make up the header.
Field Description