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6.Command Specification
6.28. TEST UNIT READY 00h
Bit
7
Byte
0
1
2
3
4
5
TEST UNIT READY checks if the drive is ready. This is not a request for a self-test. If the drive has a tape loaded,
this command will return a GOOD status. Otherwise, CHECK CONDITION will be reported and the sense key will be
NOT READY.
Drive Status
Tape Loaded
No Tape Present
Tape Loading
Tape Unloading
Tape Unloaded (but retained in drive)
6-102
6
5
Operation Code (00h)
Obsolete
Table 6-100: TEST UNIT READY results
Sense Key
00 No Sense
02 Not Ready
02 Not Ready
02 Not Ready
02 Not Ready
4
3
2
Reserved
Reserved
Reserved
Reserved
Control
ASC/ASCQ Description
00 NO ADDITIONAL SENSE INFORMATION
3A 00 MEDIUM NOT PRESENT
04 01 LOGICAL UNIT IS BECOMING READY
04 00 LOGICAL UNIT NOT READY
04 00 LOGICAL UNIT NOT READY
SONY AIT-4 drive SDX-900V series Ver.2.1
TEST UNIT READY 00h
1
0
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