IBM SY44-5902-05 manual Guest partitions

v33 = 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.

v34 = 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.

v51 = 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.

v65 = Deactivate remote service

If enabled, use this option to deactivate a remote service connection.

v66 = Active remote service

If enabled, use this option to activate a remote service connection.

v67 = 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.

v68 = 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.

v69 = 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.

v70 = 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.

vA user can create a guest partition or change a partition to/from OS/400 and guest

vAn 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