Operating instructions

SEPTEMBER 2005 MAGNUM 1X7 LTO AUTOLOADER
17-3
WHAT YOU SEND TO THE AUTOLOADER
Reservation Identification – Byte 02
This field specifies a value established by the initiator to identify the specific
reservation request (see Chapter 20). If the Element field (byte 01, bit 0) is 0,
this field is ignored.
17.2.2 TEN-BYTE CDB (PAGE CODE 57h)
The ten-byte CDB can only be used to release reservations of the autoloader as
a unit or to release a 3rd party reservation. To release reservations of only
specified elements, use the six-byte CDB.
Logical Unit Number – Byte 01, Bits 7 through 5
The value for this field must always be 0.
Byte 01, Bit 4 – 3rdPty
This field indicates whether the autoloader is to release a third-party
reservation, as follows:
0 – Do not release the third-party reservation.
1 – Release the third-party reservation, but only if the reservation was made
using the third-party reservation option by the initiator that is requesting
the release for the same SCSI device as specified in the THIRD PARTY
DEVICE ID field.
LongID – Byte 01, Bit 1
The value for this field must always be 0, indicating that the autoloader does
not support device IDs greater than 255.
Element – Byte 01, Bit 0
Element reservations are not supported in the 10-byte RELEASE CDB. The
value for this field must always be 0. Use the 6-byte RELEASE CDB to release
element reservations.
Reservation Identification – Byte 02
Element reservations are not supported in the 10-byte RELEASE CDB. The
autoloader ignores this field. Use the 6-byte RELEASE CDB to release element
reservations.
Byte 03 – Third Party Device ID
This field indicates the SCSI ID of the initiator that reserved the autoloader.
The autoloader ignores this field if the initiator is not requesting a third-party
reservation release.