Chapter 5 ATAPI Interface
Page 84 Seagate Travan 40 Product Manual
TEST UNIT READY (Group 0, Op Code 00)
This command performs a test to ensure that the tape drive is ready and a tape
cartridge is installed. TEST UNIT READY does not initiate the internal diagnostic
self-test. The drive does not disconnect during execution of this command.
CDB for TEST UNIT READY command
Data Bits
Byte 7 6 5 4 3 2 1 0 Hex
0 0 0 0 0 0 0 0 0 00
1 0 0 0 0 0 0 0 0 00
2 0 0 0 0 0 0 0 0 00
3 0 0 0 0 0 0 0 0 00
4 0 0 0 0 0 0 0 0 00
5 0 0 0 0 0 0 0 0 00