Table 4.93 Persistent Reserve Out Service Action And Valid Parameters - Fujitsu MAU3147RC SERIES Technical Manual

Command Specifications
the drive reports the RESERVATION CONFLICT status. For the Service Actions
listed below, the value specified in this field is ignored.
When the Scope value indicates Element Reservation, an element address (with
the high byte filled with zeroes) is set in the Scope-specific Address field. If the
Service Action is REGISTER, REGISTER and IGNORE EXISTING KEY, or
CLEAR, or if the Scope indicates LU Reservation, set zero in the Scope-specific
Address field. The Activate Persist Through Power Loss (APTPL) bit is valid
only for the REGISTER Service Action. For the other Service Actions, this bit is
ignored. The support of the APTPL bit is optional, and if this bit is set for a drive
that does not support this bit, the drive terminates this command with the CHECK
CONDITION status. At this time, the sense key is set to ILLEGAL REQUEST
[= 5], and the sense data is set to INVALID FIELD IN PARAMETER LIST [=
26-00].
If the value of the APTPL bit that is last received by the drive is '0,' the power
shutdown of the TARG releases all the PERSISTENT RESERVATIONs and
clears all the Reservation Keys. If the value of the APTPL bit that is last received
by the drive is '1,' the logical unit maintains all the PERSISTENT
RESERVATIONs and Reservation Keys for all the INITs throughout power
shutdown and re-power-on sequences (the SA space is used to save the
registration information). The APTPL value, which controls the logical unit
behavior while the power is turned off, is valid regardless of which INIT the bit
value has been received from.
Table 4.93 explains which fields are set by an application client and how such
fields are recognized by a drive as regards each Service Action and Scope value.
As for Reservation Keys and APTPL, they are as explained above.

Table 4.93 PERSISTENT RESERVE OUT service action and valid parameters

Service Allowed
Action Scope
Register ignored
Register And ignored
Ignore
Existing Key
Reserve Logical Unit
Element
Release Logical Unit
Element
Clear ignored
Preempt Logical Unit
Element
Preempt & Logical Unit
Abort Element
Note: MATxxx and MAUxxx series does not support Element Scope.
4-130
type
Reservation
Key
ignored valid
ignored ignored
valid valid
valid
valid valid
valid
ignored valid
valid valid
valid
valid valid
valid
Parameters
Reservation Service Action Scope-
Key Specific Address
valid ignored
valid ignored
ignored ignored
ignored valid(Element)
ignored ignored
ignored valid (Element)
ignored ignored
valid ignored
valid valid (Element)
valid ignored
valid valid (Element)
C141-C009