Technical data
HP Instant Capacity on Demand (iCOD) for nPartitions
Procedures for Changing iCOD Configurations on nPartitions
HP System Partitions Guide: Administration for nPartitions—rp7410
EMSP—schwartz@rsn.hp.com
320
Activating and Deactivating Processors with iCOD
This procedure (using the icod_modify -a... or icod_modify -d...
command) activates or deactivates processors in an nPar with iCOD.
NOTE Activating or deactivating processors can affect your billing for iCOD
services.
On systems with HP processor set (Pset) software installed: newly
activated processors are assigned to the default Pset, and deactivated
processors are removed from the Pset to which they were assigned.
HP’s iCOD software selects processors for activation or deactivation by
following the appropriate processor installation order for the machine
type. The iCOD utilities select processors based on their physical
location in the server (not their HP-UX CPU IDs).
For example, on HP Superdome servers the processor install order for
each cell is: first processor slot 0, then slots 3, 1, and 2.
As a result, all active cells in a Superdome nPar always have processor 0
activated because a minimum of one processor must be activated per cell.
Then, as needed to meet the iCOD “requested active processors” number
for the nPar, each cell’s “processor 3” slot is activated, then each cell’s
“processor 1” slot, and finally the “processor 2” slots.
Step 1. Login to the nPar in which you will be activating or deactivating
processors.
You can activate or deactivate processors in only the local nPartition (the
nPar in which you issue the icod_modify command).
Step 2. Issue the icod_modify command with either the -a # option (to activate
# processors) or -d # option (to deactivate # processors).
You must include the following details after the -a or -d option. This
information is recorded in the nPar’s iCOD change log.
[
description
]:
user_name
:
mgr_name
:
mgr_email
:
mgr_phone
These details provide an optional description of the change, the name of
the user/person making the change, and the authorizing manager,
manager’s e-mail address, and manager’s phone number.
For example, to activate two processors (-a 2):
HP Restricted / DRAFT
DRAFT NOV 2001