Chapter 3 Command Specifications; Control/Sense Commands; Test Unit Ready (00) - Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications

CHAPTER 3
Command Specifications
3.1
3.2
3.3
3.4
This chapter describes detailed specifications of the SCSI commands which the IDD is equipped with and how to
use them.
3.1

Control/Sense Commands

3.1.1

TEST UNIT READY (00)

Bit
7
Byte
0
1
2 0
3 0
4 0
5 0
This command checks the status of the disk drive. This command is executed immediately without
queueing in a system which issues only commands with no tags or links.
If the IDD is in the ready state and it is possible for it to be used by the application client which issues
this command, a GOOD status is reported for this command.
If the IDD is not in the ready state, it reports a CHECK CONDITION status for this command. The
sense data generated at this time indicate the IDD's state at this time.
C141-C010
Control/Sense Commands
Data Access Commands
Format Commands
Maintenance, Diagnostic Commands
6 5 4
LUN 0
0 0 0
0 0 0
0 0 0
0 0 0
3 2
X'00'
0 0
0 0
0 0
0 0
0 0
1 0
0 0
0 0
0 0
0 0
0 Link
3-1