Maxtor 10K III manual Persistent Reservation OUT Command-Field Descriptions, Vation OUT

						SCSI Description
	PERSISTENT RESERVATION OUT Command-Field Descriptions
Service&CVC￿(KGNFAc-	Service actions that require information&GUETKRVKQPabout persistent reservation and registrations
tion	may require enabling of nonvolatile memory within the logical unit.
	Service action codes available are:
	00h%QFG	Regis0COG-		Register a reservation&GUETKRVKQPkey with the device server
			ter
	01h		Re-	Create a persistent reservation using a reservation key
			serve
	02h		Re-	Release a persistent reservation
			lease
	03h		Clear	Clear all reservation keys and all persistent reserva-
					tions
	04h		Pre-	Pre-empt persistent reservations from another initiator
			empt
			Pre-	Pre-empt persistent reservations from another initiator
	05h	empt&
				and clear the task set for the pre-empted initiator
			Clear
	06 – 1Fh		Re-		Reserved
		served
Table5-119

Refer to Table 5-120for detailed descriptions of each of the service action codes.

	The value in this field indicates whether a persistent reservation applies to an entire
Scope	logical unit, to a part of the logical unit (defined as an extent), or to an element.
	The values for the Scope field are:
					Logical Unit. Persistent reservation applies to the full
		Code0h		NameLU	logical unit. The LU scopeDescriptionis therefore implemented by
					all device servers that implement PERSISTENT RESER-
					VATION OUT.
					Persistent reservation applies to the specified extent.
					When Extent is the scope, it indicates that the persis-
					tent reservation applies to the extent of the logical unit
					defined by the Scope-Specific Address and Extent
		1h	Extent		Length fields in the PERSISTENT RESERVATION OUT
					command’s parameter list. Note that an extent is de-
					fined only for devices defining contiguous logical block
					addresses. The Extent scope is optional for all device
					servers that implement PERSISTENT RESERVATION
					OUT.
					Persistent reservation applies to the specified element.
					When Element is the scope, it indicates that the persis-
					tent reservation applies to the element of the logical
		2h		Ele-	unit defined by the Scope-Specific Address field in the
				ment	PERSISTENT RESERVATION OUT parameter list. An
					element is as defined by the SCSI-3 Medium Changer
					Commands (SMC) standard. The Element scope is op-
					tional for all device servers that implement PERSIS-
					TENT RESERVATION OUT.
	3h – Fh			Re-	Reserved
			served

Maxtor Atlas 10K III 5-97