System information

482 Logical Partitions on System i5
Processors
Processing resources can be dynamically added to a partition, removed from a partition, or
moved from one partition to another. These processing resources depend on the type of
processors used by the partitions:
򐂰 For partitions using dedicated processors, processing resources are dedicated
processors.
򐂰 For partitions using shared processors, processing resources include virtual processors
and processing units.
In the following commands, for partitions using dedicated processors, the quantity of
processors to be added, removed, or moved are specified with the --procs flag. For partitions
using shared processors, the quantity of virtual processors to be added, removed, or moved
are also specified with the --procs flag. The quantity of processing units to be added,
removed, or moved are specified with the --procunits flag. Both of these flags can be
specified, but only one is required.
Adding processors to a partition
To add processors to a partition using dedicated processors, enter this command:
chhwres -r proc -m <managed system> -o a -p <partition name> --procs <quantity>
To add processors to a partition using shared processors, enter this command:
chhwres -r proc -m <managed system> -o a -p<partition name> --procs <quantity> --procunits
<quantity>
Removing processors from a partition
To remove processors from a partition using dedicated processors, enter this command:
chhwres -r proc -m <managed system> -o r -p <partition name> --procs <quantity>
To remove processors from a partition using shared processors, enter this command:
chhwres -r proc -m <managed system> -o r -p <partition name> --procs <quantity> --procunits
<quantity>
Moving processors from one partition to another
To move processors from a partition using dedicated processors to another, enter this
command:
chhwres -r proc -m <managed system> -o m -p <source partition name> -t <target partition
name> --procs <quantity>
To move processors from a partition using shared processors to another, enter this
command:
chhwres -r proc -m <managed system> -o m -p <source partition name> -t <target partition
name> --procs <quantity> --procunits <quantity>
Note: Currently, AIX/Linux partitions using shared processors do not support processor
DLPAR operations.
Note: The quantity of processing units must be multiplied by 100 for the command. For
example, to add, remove, or move.5 processing units, specify a quantity of 50.