HP StorageWorks HSG80 Enterprise Modular Storage RAID Array Fibre Channel Solution Software V8.8 for Linux X86 Release Notes (AA-RV1KA-TE, March 2005)

ACS Enhancements and Fixes
13HSG80 Enterprise Modular Storage RAID Array Fibre Channel Solution Software V8.8 for Linux
X86 Release Notes
6. FAKE_PR
Note: Use the FAKE_PR switch for
maintenance or recovery operations only.
If set on a unit, allows the controller to
signal to host systems implementing
persistent reservations that persistent
reservations are lost. (Lost persistent
reservations can occur as a result of
mirrored cache reconfiguration or
maintenance activities, such as cache
module replacement.) After the
FAKE_PR
switch is invoked, the host resets persistent
reservations against all units in the storage
system after the host clears its internal
persistent reservation reference database.
After successful communication, the host
can recreate persistent reservations that
were lost.
Host systems (such as Tru64 UNIX, V5.x)
implementing persistent reservations assume
that persistent reservations are never lost
under any condition. Changing the
mirrored cache setting causes persistent
reservations to be lost by the controller
because the controller reformats cache
memory data structures where persistent
reservation data for units reside.
Table 1: New CLI Commands and Switches (Continued)
Item CLI Command or Switch Description and Background