Reference Guide

Chapter 4 SCSI Commands
MODE SENSE (6) / (10) Command (1Ah / 5Ah)
DLT-S4 Interface Reference Guide 181
Logical Unit Control Page
(18h)
4
This page contains the logical unit control parameters (For Parallel SCSI,
see figure 93
; for Fibre Channel, see figure 94; and for SAS, see figure 95).
Figure 93 Parallel SCSI —
Logical Unit Control MODE
SENSE Page — Data Format
Table 101 Parallel SCSI —
Logical Unit Control MODE
SENSE Page — Field
Descriptions
Bit
7 6 5 4 3 2 1 0
Byte
0 PS (0) SPF (0) Page Code (18h)
1 Page Length (06h)
2 Reserved Protocol Identifier (1h)
3 — 7 Reserved
Field Description
PS Parameters Savable. Always set to 0.
SPF SubPage Format. Always set to 0. Indicates that this page uses the page_0 page format.
Page Code Identifies the type of
MODE SENSE page being transferred. A value of 18h identifies
this as the Logical Unit Control page.
Page Length Indicates the number of bytes in the page, excluding bytes 0 and 1.
Protocol
Identifier
A value of 1h indicates that this mode page applies to an SPI-5 compliant port (see the
SCSI Parallel Interface - 5 (SPI-5) standard).