nPartition Administrator's Guide

1. Instead of adding a base cell, add a floating cell to a partition using the following command:
parmodify –p# -a#:floating
Where:
# indicates the cell number.
2. Add the cell online to a partition, using the following command:
parolrad –a #
Unassigning (Removing) Cells from an nPartition
You can remove cells from an nPartition by using any one of the following procedures:
• “Removing Cells from an nPartition (nPartition Commands)” (page 183)
• “Removing Cells from an nPartition (Partition Manager)” (page 185)
Removing a cell from an nPartition involves unassigning the cell from the nPartition to which
it is assigned and, if necessary, performing a reboot for reconfig of the nPartition.
NOTE: Adding or removing cells from an nPartition will change the amount of memory available
to the nPartition, possibly significantly. You should consider how the memory change may affect
the amount of swap space necessary for the nPartition and if needed adjust the swap space size.
When not using remote administration features, you can remove any cell from the local nPartition
and can remove inactive cells from remote nPartitions in the same server complex. However, at
least one core-capable cell must remain in each nPartition.
The remote administration features supported by the Enhanced nPartition Commands or Partition
Manager Version 2.0 also enable you to remove any cell from any nPartition in an HP Integrity
server complex. Still, at least one core-capable cell must remain in each nPartition.
Reboot for Reconfig Guidelines for Removing Cells In some situations, after removing cells from
a modified nPartition you must immediately perform a reboot for reconfig (HP-UX: shutdown
-R; Windows: shutdown /r; Linux: shutdown -r time; OpenVMS: @SYS$SYSTEM:SHUTDOWN
with an automatic system reboot). Performing a required reboot for reconfig completes cell
assignment changes and unlocks the Complex Profile for the server.
• You must immediately perform a reboot for reconfig of an nPartition when you have removed
an active cell from the nPartition.
• You must immediately perform a reboot for reconfig of an nPartition when you have removed
a cell from an active nPartition and specified the -B option to the parmodify command.
• You do not need to perform a reboot for reconfig of an nPartition when you have removed
an inactive cell from an nPartition and did not specify the -B option to the parmodify
command.
In the cases where you must immediately perform a reboot for reconfig after removing a cell,
not doing so will leave the Complex Profile locked and thus will prevent any other changes to
the server complex configuration. In these cases, the reboot for reconfig is required to complete
the cell assignment changes and permit other changes to occur.
Procedure 6-10 Removing Cells from an nPartition (nPartition Commands)
From the command line, use the parmodify command to remove cells from an nPartition. You
also can use the parstatus command to list current nPartition details such as cell assignments.
Unassigning (Removing) Cells from an nPartition 183