HP 220mx Guía de usuario descargar pdf (Pagina 33)

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101

SCSI Command Overview

Drive Control Commands

Chapter 11-14

Bit 2-0 These bits specify a logical unit number. Only one logi-

cal unit number is identified for any one selection se-

quence.

Status Phase

A status byte is sent from the target to the initiator during the Status

Phase at the termination of each command unless the command is

cleared by an ABORT message, a BUS DEVICE RESET message, or a

RESET condition. The target supports the following status codes.

Good 00H

This status indicates that the target has successfully completed the

command.

Check Condition 02H

Any error, exception, or abnormal condition that causes sense data to be

set causes a Check Condition status. The Request Sense Command

should be issued following a CHECK CONDITION status to determine

the nature of the condition.

Condition Met 04H

This status or Intermediate-Condition Met is returned when the Pre-

Fetch command is satisfied.

Table 1-8 Target-Supported Status Codes

Code (hex.) Status

00H Good

02H Check Condition

04H Condition Met

08H Busy

10H Intermediate/Good

14H Intermediate Condition Met

18H Reservation Conflict

28H Queue Full

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 377 378

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HP 220mx Guía de usuario Pagina 33

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