Table 6-100 Test Unit Ready Command - Sun Microsystems storagetek sl500 Reference Manual

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 7
0
1
2
3
4
5
96122 • Revision: F
6 5
Operation Code (00h)
Ignored
Control Byte (00h)
Bit
4 3
Reserved (00h)
Reserved (00h)
Reserved (00h)
Reserved (00h)
Chapter 6 SCSI Commands 231
Test Unit Ready
2 1 0