HP Superdome 2 Partitioning Administrator Guide (5900-2064, November 2011)

Creating a new nPartition
This section describes the procedure to create an nPartition using the OA CLI and the GUI.
Creating a new nPartition using the OA CLI
Use the parcreate command to create a new nPartition on HP Superdome 2. The command
takes the specified blades and I/O bays and assigns them to the new nPartition. If an nPartition
number is not specified, the command finds an available nPartition number and assigns it to the
new nPartition. Likewise, if an nPartition name is not specified, a default name of the format
nParNNNN (example: nPar0001) is given to the new nPartition (where, NNNN is a 4 digit
nPartition number). Superuser permission is required to run this command from an operating system
within a partition. When the command is invoked from the OA, it requires operator-level privilege
or higher. This is applicable for all partition commands. For parstatus and vparstatus, you
must have user level privilege or higher.
To create a two-blade nPartition nextPartition that uses blades 1 and 3 in enclosure 1 and
the IO slot in IOX enclosure 5, bay 1:
parcreate -p nextPartition -a blade:1/1:::: -a blade:1/3:::: -a io:5/1:
Creating a new nPartition using the OA GUI
To create a new nPartition using the OA GUI:
1. Open the OA GUI.
2. Login using the administrator credentials.
3. Click Complex nPartitions in the Systems and Devices section on the left pane.
4. In Complex nPartitions Summary, click Create.
5. Enter the nPartition Name.
6. Click Create nPartition.
The nPartition is created.
You will be redirected to the Modify nPartition screen (see Figure 7 (page 40)), where you
can assign resources to the created partition. You can also set a value for the number of cores
that are intended to be active for the nPartition using the Intended Active Settings option.
NOTE: Intended Active (IA) is the number of cores that the iCAP software will try to activate
whenever a partition is booted in nPartition mode. If an active nPartition (-p) is targeted by
the parmodify operation, the current partition specification is updated to reflect the new IA
value and will take into effect at the next nPartition reboot. You can know the number of IA
cores for each nPartition using the icapstatus command.
The value for core IA may be overridden by the use of icapmodify either by issuing an
icapmodify operation from the OA, or by gWLM issuing icapmodify as part of core activation
or deactivation on the nPartition.
When the IA value is modified using icapmodify, it will be effective immediately (unlike
parmodify where the changes take effect only on an nPartition reboot).
For example, you can use parmodify —p 2 —n core:15 to modify the Intended Active
core value of partition 2 to 15.
For example, you can use parcreate —p icapPartition —a blade:1/4::::87.5%\
—a blade:1/5::::87.5% —n core:12 to create a new nPartition icapPartition with two
blades and IA value of core as 12.
7. Expand the rows to select all the resources.
8. Click Apply.
Creating a new nPartition 39