Seagate Ultra 320 User Manual

Page 142

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128

Parallel SCSI Interface Product Manual, Rev. A

Data List Length field and shall assume a length of zero.

[4] If packetized failure data is provided, the Packetized Failures Valid (RSPVALID) bit shall be set to one and

the Packetized Failures List Length field shall specify the number of bytes in the Packetized Failures field.
The Packetized Failures List Length field shall contain a length of 4. Other lengths are reserved for future
standardization. If no packetized failure data is provided, the packetized failures valid bit shall be set to
zero. The initiator shall ignore the Packetized Failures List Length field and shall assume a length of zero.
The Packetized Failures field (see Table 55) contains information describing the packetized failures
detected during the execution of a task. The Packetized Failures field shall contain valid information if the
target detects any of the conditions described by the packetized failure code (see Table 56).

[5] The Status field contains the status of a task that completes. See Section 7.3, Table 64, for a list of status

codes.

[6] The iuCRC field shall use the algorithm defined in Subsection 11.3, ANSI SCSI Parallel Interface (SPI-5),

T10/1525D.

The Packetized Failures field (see Table 55) contains information describing the packetized failures detected
during the execution of a task. The Packetized Failures

field shall contain valid information if the target detects

any of the conditions described by the packetized failure code (see Table 56).

Table 55:

Packetized Failures field

[1] The Packetized Failures Code is defined in Table 56.

Table 56:

Packetized Failures code

The Sense Data

field contains the information specified by the SCSI Primary Commands-4 (SPC-4), T10/1731-

D, for presentation by the REQUEST SENSE command (see Seagate SCSI Command Reference Manual,
Part number 100293068). The proper sense data shall be presented when a SCSI status byte of Check Condi-
tion is presented as specified by the SCSI Primary Commands-4 (SPC-4), T10/1731-D and this manual.

Bit

Byte

7

6

5

4

3

2

1

0

0

Reserved

1

Reserved

2

Reserved

3

PACKETIZED FAILURE CODE [1]

Codes

Description

00h

Indicates no failure or task management function complete.

01h

Reserved.

02h

SPI command information unit fields invalid.

03h

Reserved.

04h

The task management function not supported.

05h

The task management function failed.

06h-FFh Reserved.

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