Tandberg Data SLR AUTOLOADER PROGRAMMER, Руководство пользователя

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Tandberg Data SCSI Commands
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Tandberg SLR Autoloader SCSI Functional Specifications 2-39
2.11 RELEASE 17h
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (17h)
1 Logical Unit Number 3rdPty Third Party Device ID Element
2 Reservation Identification
3 Reserved
4 Reserved
5 Vendor Unique Reserved Flag Link
The RELEASE command releases the library if it is currently reserved by the requesting
initiator. It is not an error to attempt to release the library if it is not currently reserved
by the requesting initiator. However, if it reserved by another initiator, the library is not
released.
3rdPty
The third-party release option allows an initiator to release a logical unit
that was previously reserved using the third-party reservation option. If the
third-party (3rdPty) bit is zero, then the third-party release option is not
requested. The library does not support third party reservation, so the value
for this field must be zero.
Third Party Device ID
The Third Party Device ID field contains the SCSI ID of the third party
device if the 3rdPty bit is one. Since the library does not support third party
reservation, this field should be set to zero.
Element
If the element bit is zero, the target shall release the library or any reserved
elements from reserved status. If the element bit is one, the target shall
release any reserved elements associated with the Reservation
Identification from reserved status.
Reservation Identification
This field specifies a value established by the initiator to identify a specific
reservation request if the element bit is set to one.