Reference Guide

Chapter 4 SCSI Commands
INQUIRY Command (12h)
DLT-S4 Interface Reference Guide 53
Table 29 Subsystem
Components Revision Page —
Field Descriptions
Field Description
Product Family Indicates the data density of the tape drive. This field is set to a value of Dh.
Released
Firmware
Differentiates between released and test versions of firmware. When set to 1,
indicates released code (Vxxx); when set to 0, indicates field test code (Txxx).
Released code has no minor firmware version number (byte 38 is set to 0). For
tracking purposes, field test and engineering versions of code have non-zero minor
firmware version numbers.
Version Number
Fields
These fields display the various version numbers in binary format, instead of
ASCII.
Firmware
Personality
Numeric indicator of firmware personality. Note that when set to 4, indicates OEM
family.
Firmware
Subpersonality
Indicates the variant of the firmware personality. Always set to 1, indicating the
primary firmware personality variant.
Vendor-Specific
Subtype
Product identification.
Media Loader
Present Flag
When set to 0, indicates no loader present. Non-zero indicates loader is present.
Library Present
Flag
When set to 0, indicates no library present. Non-zero indicates library is present.
Module Revision A 4-byte ASCII string representing the revision level of the tape drive’s module (the
controller PCBA attached to the drive).
Unit Serial
Number
Drive’s serial number; matches what is shown on the exterior of the drive chassis.