Fujitsu MBA3300RC Computer Drive User Manual


 
4.1 Control/Sense Commands
4.1.12 RELEASE (17)
Bit
Byte
7 6 5 4 3 2 1 0
0 X'17'
1 0 0 0 3rd Pty 3rd Pty Dev ID 0
2
× × × × × × × ×
3 0 0 0 0 0 0 0 0
4 0 0 0 0 0 0 0 0
5 0 0 0 0 0 0 0 0
This command releases the reserve state of an HDD in relation to the INIT that issued
this command.
When a reserve state in relation to the INIT that issues this command, or an HDD
does not exist, this command is terminated normally with a GOOD status.
Also, the value specified in CDB byte 2 has no meaning and is disregarded, but it
is desirable for X '00' to be specified by the INIT in this byte.
(1) Release function
This command releases a reserve state if a reserve state exists, and if the INIT
which issued this command has a reserve right for the entire HDD (logical unit).
(2) Release object and third party release function
The third party reserve function is not supported by the drive.
If the 3rd Pty bit of CDB byte 1 is "0," the HDD is reserved for the INIT that has
issued this command. The INIT has the reserve right for the HDD.
If the 3rd Pty bit is "1," execution of this command is terminated with the CHECK
CONDITION status (ILLEGAL REQUEST [= 5]/Invalid field in CDB [= 24-00]).
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