Technical data

Introduction to nPartitions
Locking and Unlocking Complex Profiles
HP System Partitions Guide: Administration for nPartitions—rp7410
EMSP—[e-mail]
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The Partition Configuration Data includes the following details for
each nPartition in the server complex:
— The partition’s name, number, and IP address.
— The PRI, HAA, and ALT boot paths and boot actions (path flags).
— The use-on-next-boot setting for each cell. This determines
whether the cell is allowed to become active and join (rendezvous)
the rest of the cells in the partition.
— The core cell choices: a list of any cells that are preferred to be
selected as the nPartition’s active core cell.
Each partition has its own Partition Configuration Data, a copy of
which is stored on each cell in the partition. The server’s service
processor also stores copies of this data for all nPartitions.
The server’s service processor manages all Complex Profile data and
keeps all copies of the data coherent.
Locking and Unlocking Complex Profiles
The commands and utilities that you use to configure and modify
nPartitions automatically lock and unlock portions of the Complex
Profile as needed when updating the server’s Complex Profile data.
Under normal circumstances you do not need to manually lock or unlock
the Complex Profile. The commands, utilities, and related procedures
handle all locking and unlocking.
In some situations you must perform a reboot for reconfig (shutdown -R)
of a modified partition in order to complete a partition reconfiguration
and unlock the changed portion of the Complex Profile. (For example,
when removing an active cell from an nPartition you must perform a
reboot for reconfig.)
HP-UX provides the parunlock command to force-unlock parts of a
server’s Complex Profile in situations where the normal procedures and
utilities have failed.
Refer to the next section for details and recommendations about
coordinating changes to nPartitions and related Complex Profile locking
information.
HP Restricted / DRAFT
DRAFT NOV 2001