6-2.6 Test Unit Ready Mc Command 00H; 6-2.6.1 Test Unit Ready Cdb Description; 6-2.6.2 Test Unit Ready Check Condition Status; Table 6-34. Test Unit Ready Field Description - Fujitsu M2488 Product Manual

MEDIA CHANGER COMMANDS
6-2.6 TEST UNIT READY MC command 00h
The TEST UNIT READY command provides a means to check if the logical unit is ready. This is not
a request for a self-test. If the logical unit would accept an appropriate medium-access command
without returning CHECK CONDITION status, this command returns a GOOD status.
6-2.6.1 TEST UNIT READY CDB Description
TEST UNIT READY is a six-byte command. The bytes are as shown below and described in
Table 6-34. Common fields are described in paragraph 4-3.1 on page 7-4.
7
BYTES
0 0
1
2
3
4
5
Note: Changeable fields in the CDB are shaded.
BYTE BIT VALUE
0 0-7
6-2.6.2 TEST UNIT READY CHECK CONDITION Status
The medium-changer logical unit is Ready if the following conditions are met:
A. the medium-changer mode is System Mode
B. a magazine is present or a cartridge is loaded in the tape drive
If medium-changer is not Ready then CHECK CONDITION status is returned with the sense key
equal to NOT READY.
6-30
6 5 4
0 0 0
LUN
Reserved

Table 6-34. TEST UNIT READY Field Description

00H Operation code.
CG00000-011503 REV. A
M2488 PRODUCT GUIDE
BITS
3 2
0 0
Reserved
Reserved
Reserved
Reserved
DESCRIPTION
1 0
0 0
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March 1997