Test Unit Ready Command; Table 3-172 Test Unit Ready Command - Oracle StorageTek T10000 Reference Manual

Test Unit Ready Command

Test Unit Ready Command
The Test Unit Ready command checks if a device is loaded and ready to receive a
command that accesses the media, such as Read or Write commands.

TABLE 3-172 Test Unit Ready Command

Byte 7
0
1 (MSB)
thru
4
5
Notes:
• Good status is returned if the tape drive is loaded and ready.
• Check Condition status with a sense key of Not Ready is returned if the tape
• Busy status is returned if a Rewind, Erase, Load/Unload, or Locate command
228 T10000: Interface Reference Manual
6 5
Operation Code (00h)
drive is not loaded.
with the immediate bit set was previously issued and the tape drive has not
completed the command.
Bit
4 3 2
Reserved
Control Byte
1 0
(LSB)
August 2016