Reference Guide

Chapter 4 SCSI Commands

MODE SENSE (6) / (10) Command (1Ah / 5Ah)

DLT-S4 Interface Reference Guide 162

MODE SENSE Block

Descriptor

Figure 84 describes the MODE SENSE block descriptor that follows the

MODE SENSE header. A description of the MODE SENSE block descriptor

is provided in table 91

Figure 84 MODE SENSE Block

Descriptor — Data Format

Table 91 MODE SENSE Block

Descriptor — Field Descriptions

Bit

Byte

7 6 5 4 3 2 1 0

0 Density Code

1 — 3

(MSB)

Number of Blocks (000000h)

(LSB)

4 Reserved

5 — 7

(MSB)

Block Length

(LSB)

Field Description

Density Code Matches the current tape medium density.

Density Code Description

00h Default density

49h 190,000 bpi, 56 logical tracks, serial cartridge tape,

160 GB / 320 GB (Super DLTtape I)

4Ah 233,000 bpi, 40 logical tracks, serial cartridge tape,

300 GB / 600 GB (Super DLTtape II)

4Bh 256,000 bpi, 80 logical tracks, serial cartridge tape,

800 GB / 1600 GB (DLTtape S4)