HP Instant Capacity Version 10.x User Guide (5900-1581, March 2011)

4. Activate a component. Depending on the type of component, do one of the following:
• Activate a core in a hard partition (nPartition) by entering the icapmodify -a command.
Note: For details about activating a core in a virtual partition, see “Instant Capacity
Integration with Virtual Partitions (HP-UX)” (page 23).
• Activate a cell board by using the parmodify or parmgr command. For details about
activation of cell boards (and memory), see “Activation of an Instant Capacity Cell Board”
(page 68).
IMPORTANT: To avoid a delay in activation of additional cores, purchase and keep in reserve
some quantity of temporary capacity for the system. Temporary capacity can be used to instantly
and temporarily activate cores while waiting for an RTU codeword. For details about temporary
capacity, see Chapter 5. You can also temporarily activate one or more cores using the Instant
Access Capacity (IAC) provided with the purchase of Instant Capacity processors.
Instant Capacity Cell Board
Instant Capacity Cell Board allows you to have additional (inactive) cell-board capacity in your
system for growing business needs. When the need arises, you can purchase additional cell and
memory usage rights; then the inactive cell boards, which contain memory and cores, are available
for instant activation and use.
The Instant Capacity software monitors and enforces the count of inactive cell boards (those without
usage rights) throughout the complex. Inactive cell boards assigned to a partition have the
use-on-next-boot flag set to n (no).
After applying a cell board and memory codeword to convey additional usage rights, you may
activate any cell board with memory not exceeding the amount allowed by the available memory
usage rights, and configure the cell into an nPartition. This is controlled by setting the use-on-next-boot
flag to y (yes) with the parmodify command after the cell is configured and assigned to the
partition, and then rebooting the nPartition.
IMPORTANT: An active cell board must have a minimum of one active core; therefore, you must
also have sufficient core usage rights on the complex to activate at least the one core per cell
board. The Instant Capacity software redistributes active cores across all cell boards of the partition.
Temporary Instant Capacity can be used to activate this core but the system needs to have at least
one core usage right for each active cell. Also, if you are creating a new partition for the new cell
board, additional constraints apply and you might need to acquire additional core usage rights.
For more information see “New Partition Creation and Instant Capacity” (page 160).
For more information about Instant Capacity Cell Board, see Chapter 6: “Instant Capacity Cell
Board” (page 65).
Instant Capacity Software Validation
On HP-UX Systems
The Instant Capacity software (HP-UX product B9073BA) is installed by HP manufacturing on
instantly ignited HP-UX systems. The Instant Capacity software can also be installed by an HP
service representative on existing (supported) HP-UX enterprise servers as an add-on.
NOTE: The Instant Capacity software is automatically installed when the HP-UX 11i v3, 11i v2,
or 11i v1 Operating Environment (OE) is installed.
To verify the Instant Capacity software is installed on your system, execute the following HP-UX
command:
/usr/sbin/swlist -l product iCOD
Output similar to the following is displayed:
Instant Capacity Cell Board 29