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TEST UNIT READY
0
1
4
5
T
checks if the drive is ready for commands that access the
EST UNIT READY
tape. This is done by the pre-execution Media Access check; it is not a request
for a self-test. If the drive has a tape loaded, the command returns a
status. Otherwise,
CHECK CONDITION
.
READY
Pre-Execution Checks:
Illegal Field
Unit Attention
Command Descriptor Block:
7
6
5
Test Unit Ready Specific Status:
If all the pre-execution checks pass,
is reported and the sense key is
Reservation
Media Access
4
3
Operation Code (00h)
Reserved (0)
Control
status is reported.
GOOD
00h
GOOD
NOT
Deferred Error
Media Information
2
1
0
Commands 151
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