Quantum SuperLoader 3 Guia do Utilizador descarregar pdf (Página 127)

Chapter 2 Media Changer Commands

Read Element Status Command (B8h)

Quantum SuperLoader 3 Software Interface Guide 111

Table 52 Data Transfer

Element Descriptor

10-11

Source Storage Element Address

•••

(36 bytes)

Primary Volume Tag Information

(field omitted if PVOLTAG=0)

•••

(1 byte)

Reserved Code Set

(1 byte)

Reserved Identifier Type

(1 byte)

Reserved

(1 byte)

Identifier Length

•••

(16 bytes)

Drive Serial Number

(field omitted if Identifier Length = 0)

Field Name Description

Access When set to 1 it indicates access to the data transfer

element by the medium transport element is allowed.

When set to 0 it indicates access is denied. This may

occur if the device is performing an auto clean

operation.

Not Bus This field is sent as 0. The data transfer element is on

the same bus as the media changer device.

ID Valid When set to 1, it indicates that the SCSI BUS address

field contains valid information.

LU Valid When set to 1, it indicates that the

Logical Unit Number

field contains valid information.

Bit

Byte 7 65 4 3210

1 2 ... 122 123 124 125 126 127 128 129 130 131 132 ... 159 160

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Quantum SuperLoader 3 Guia do Utilizador Página 127