Reference Guide

Chapter 4 SCSI Commands
TEST UNIT READY Command (00h)
DLT-S4 Interface Reference Guide 333
TEST UNIT READY Command (00h) 4
The TEST UNIT READY command checks the DLT-S4 tape drive to ensure
that it is ready for commands involving tape movement.
Figure 168 TEST UNIT
READY Command Descriptor
Block
— Data Format
Bit
7 6 5 4 3 2 1 0
Byte
0 Operation Code (00h)
1 Reserved
2 — 4 Reserved
5 Control