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v 33 = Reorder SPCN addressing
Use this option to put the rack addresses in the correct order to show their
position in the System Power Control Network (SPCN) after adding or removing
racks.
v 34 = Force CPM or MSD IPL retry
If enabled, use this option to retry a continuously powered main storage (CPM)
or MSD IPL if the previous attempt has hung or failed so the dump is not lost.
v 51 = Display processor status
Use this option to help determine the cause of processor loop conditions. The
task dispatching element (TDE) address and the next instruction address (NIA)
is shown for each processor assigned to the partition selected.
v 65 = Deactivate remote service
If enabled, use this option to deactivate a remote service connection.
v 66 = Active remote service
If enabled, use this option to activate a remote service connection.
v 67 = Disk unit IOP reset / reload
If enabled, this option allows you to use specific disk unit reference codes
(URCs) to initiate a disk unit IOP reset or reload in an attempt to recover from a
failure.
v 68 = Power off domain
If enabled, use this option to power off the power domain of a failed disk unit
I/O processor so the IOP can be replaced. This is enabled only when a disk unit
attention reference code for a failure is displayed for a partition.
v 69 = Power on domain
If enabled, use this option to power on the last domain that was powered off
through option 68 or hardware service manager concurrent maintenance. This is
enabled only when a domain is powered off through one of these methods, and
is disabled once the domain is powered back on.
v 70 = Dump MFIOP
Use this option to dump the contents of storage in the Multiple Function IOP
(MFIOP) to the load source disk unit for problem determination.
Guest partitions
Guest partition - this is a secondary partition which is running an operating
system other than OS/400. The guest partition requires another partition to host it.
The purpose of the hosting partition is to supply paths from virtual I/O in the
guest partition’s operating system to real I/O hardware drivers in the hosting
partition. The guest partition requires a console in order to provide an interface to
DST console functions. TELNET is used to establish a guest console from the
hosting partition. The guest partition’s console should not be confused with the
console used by the operating system running in the guest partition. They are
separate console sessions.
v A user can create a guest partition or change a partition to/from OS/400 and
guest
v An OS/400 can host a guest partition providing resources and operational
support.
Within a hosting secondary LAPR service function session, the hosted guest
partition can work with the hosted guest partition IPL status. View hosting
information using option 9 on the Display Partition Information menu
Chapter 4. Service Reference Procedures 147