Quantum LTO 2U Instruções de Operação descarregar pdf (Página 185)

JULY 2007 MAGNUM 224, MAGNUM 448, STORAGELIBRARY T24, OR STORAGELOADER 2U

18-5

WHAT THE LIBRARY RETURNS

Sense Key Specific – Byte 15, Bits 6 through 0; Bytes 16 and 17

When the SKSV bit is set to 1, the information contained in this field indicates

which field in the CDB or parameter list of a command caused the Check

Condition status. This field, valid only for a sense key of Illegal Request (5h), is

defined as follows:

C/D (Command/Data) – Byte 15, Bit 6 Indicates whether the Check

Condition status resulted from an illegal parameter in either the command

descriptor block (Command) or the parameter list (Data) of a particular

command, as follows:

BPV (Bit Pointer Valid) – Byte 15, Bit 3 Indicates whether the value in the Bit

Pointer field is valid, as follows:

The value in the Bit Pointer field is valid when the field of the CDB or

parameter list that caused the error is less than one byte long.

Bit Pointer – Byte 15, Bits 2 through 0 Specifies the bit of the byte identified

by the Field Pointer (bytes 16 and 17). When a multiple-bit field is in error, the

Bit Pointer contains the value of the most significant bit of the field. The most

significant bit of a multiple-bit field is the bit with the highest bit number. For

example, if a field consists of bits 5, 4, and 3, the most significant bit is bit 5.

Field Pointer – Bytes 16 and 17 Contains the number of the byte in which

the error occurred. Byte numbers start at 00. When a multiple-byte field is in

error, the Field Pointer contains the value of the most significant byte of the

field. The most significant byte of a multiple-byte field is the byte with the

lowest byte number. For example, if a field consists of bytes 02, 03, and 04, the

most significant byte is byte 02.

Bit

Byte

7 6 5 4 3 2 1 0

15 SKSV C/D Reserved BPV Bit Pointer

16 (MSB)

Field Pointers

(LSB)

The Check Condition status resulted from an illegal

parameter in the parameter list (Data)

The Check Condition status resulted from an illegal

parameter in the command descriptor block (Command)

0 The value contained in the Bit Pointer is not valid

The value contained in the Bit Pointer (byte 15, bits 2

through 0) is valid

1 2 ... 180 181 182 183 184 185 186 187 188 189 190 ... 263 264

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Quantum LTO 2U Instruções de Operação Página 185