Technical data

Managing nPartitions
Rebooting to Implement nPartition Changes
HP System Partitions Guide: Administration for nPartitions, rev 5.1 248
Rebooting to Implement nPartition Changes
Once an nPartition has booted and is active, the nPartition has a fixed
set of active hardware resources. In order to establish a different set of
active hardware resources for an nPartition you must reboot the
nPartition, as described below.
You can add and remove cells from an active, booted nPartition; however,
you only can add or remove inactive cells without having to reboot the
nPartition.
To remove an active cell from an nPartition, or to make a newly added
cell or inactive cell active, you must perform a reboot for reconfig of the
nPartition.
The following list describes situations where you may need to reboot an
nPartition to implement changes.
• Perform a reboot for reconfig (shutdown -R) of an nPartition in the
following situations.
— When you want to add one or more cells to an nPartition.
Newly added cells initially are inactive when assigned to an
nPartition. To allow the new cells to rendezvous (join the
nPartition as active members), perform a reboot for reconfig.
— When you remove one or more cells from an nPartition.
Removing an active cell requires an nPartition
reboot for reconfig, but removing an inactive cell does not require
an nPartition reboot for reconfig. Inactive cells are removed
immediately.
— When you change a cell’s use-on-next-boot value from “n” (no, do
not use) to “y” (yes, use the cell).
A reboot for reconfig permits the cell to rendezvous into the
nPartition and become active; see below.
— When you want to allow a currently inactive cell to become
active.
A reboot for reconfig reboots all cells, allowing them an
opportunity to join (rendezvous) the nPartition as active
members.