Quantum DAT 24 Drive Guia do Utilizador descarregar pdf (Página 134)

Page 122 DDS-4 SCSI Interface Manual, Rev. B

Field

Name

Bytes

Bits

Description

BOP bit 0 7 0 = The current logical position is not at BOT.

1 = The current logical position is at Beginning-of-Partition (BOT).

EOP bit 0 6

0 = The current logical position is not between early-warning and end-

of-tape.

1 = The current logical position is between early-warning and end-of-

tape.

MPU 0 3

0 = File Number field is valid.

1 = File Number field is invalid.

BPU 0 2

0 = Block Number field is valid.

1 = Block Number field is invalid.

Partition

Number

4-7 This field is always 0.

Block

Number

8-15 This field indicates the number of logical blocks including filemarks

between beginning-of-medium and the current logical position.

File

Number

16-23 This field indicates the number of filemarks between beginning-of-

medium and the current logical position.

Set

Number

24-31 This field indicates the number of setmarks between beginning-of-

medium and the current logical position.

Reserved All bits are 0.

1 2 ... 129 130 131 132 133 134 135 136 137 138 139 ... 180 181

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Quantum DAT 24 Drive Guia do Utilizador Página 134