Test Unit Ready
96122 • Revision: F Chapter 6 SCSI Commands 231
Test Unit Ready
The Test Unit Ready command (00h) allows the initiator to determine if the library
is powered-on and ready to accept additional commands. This is not a request for
a library self-test.
The Test Unit Ready command returns a Good status if the library is ready to
accept additional commands. This command also returns a Check Condition if the
library is not ready or if there are pending Unit Attentions.
TABLE 6-100 Test Unit Ready Command
Byte
Bit
76543210
0Operation Code (00h)
1 Ignored Reserved (00h)
2 Reserved (00h)
3 Reserved (00h)
4 Reserved (00h)
5 Control Byte (00h)
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