Dell PowerVault TL2000 - Manual (Page 58)

Bit 7 6 5 4 3 2 1 0
Byte
3 (LSB)
4 Reserved
5 Scope Type
6 (MSB) Obsolete
7 (LSB)
Field descriptions:
Reservation Key:
See SPC-3 r23.
Scope-Specific Address:
See SPC-3 r23.
Scope:
See SPC-3 r23.
Type: See SPC-3 r23.
3-44 TL2000 and TL4000 SCSI Reference