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Commands: Mode Sense (1Ah) Page 93

Density

Code

The values for the Density Code field are as follows:

25h DDS-3 format

26h DDS-4 format

47h DAT-72

NOTE: Although the above values are approved by the ANSI X3T9 Technical

Committee, the values are not published in the SCSI-2 standard.

Block

Length

5-7

This field indicates the size of a fixed-length logical block. Byte 5 is the Most-

Significant-Byte (MSB); byte 7 is the Least-Significant-Byte (LSB). The default

fixed-block size for the drive is 512 bytes (200h). Block Length may be set in a

range from 1 to 224-1 bytes (as specified in the READ BLOCK LIMITS

command.)

When this field is 0, the Block Length bytes indicate variable-block mode.

Mode Page Format

The following table shows the generic Mode Page format.

Byte

Bits

7 6 5 4 3 2 1 0

0 0 0 | Page Code

1 Page Length

Mode Parameters

The following table explains the page layout fields

Field Name Bytes Description

Page Code 0 The Page Code field identifies the format and parameters for this page as

follows:

Hex Code Page Name

02 Disconnect/reconnect

0A Control mode

0F Data Compression Control

10 Device configuration

11 Medium partition

1D Element Address Assignment

1F Drive Capabilities

Page

Length

1 The Page Length field specifies the length (in bytes) of the mode parameters

that follow the Page Length field.

Mode

Parameters

2-n The mode parameters are described in the following subsections.

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 180 181

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