HP Instant Capacity User's Guide for Versions 8.x

Core Activation
As previously mentioned, an Instant Capacity system contains a specified quantity of activated
processing capacity (cells, cores, and memory) and a specified amount of deactivated processing
capacity. Systems may have fewer active components than they have rights to activate. Such
systems may instantly activate additional components without the need to purchase an RTU,
up to the number of component usage rights on the system.
Increasing Processing Capacity by RTU Purchase
When the processing demand significantly changes, you can enable use of additional system
components using the following procedure:
1. Purchase additional usage rights for a component type — this is accomplished by sending
a purchase order (P/O) to HP for an RTU product. Soon after your P/O is received by HP,
you should receive a letter from HP that contains information about retrieving the RTU
codeword from the Utility Pricing Solutions web portal.
2. Acquire the RTU codeword from the Utility Pricing Solutions web portal,
http://www.hp.com/go/icap/portal
3. Apply the RTU codeword — by using the icapmodify -C command/option (note the -C
option is uppercase) on any partition in the complex.
4. Activate a component — depending on the type of component, this is accomplished as
follows:
a. Activate a core in a hard partition (npar) by use of the icapmodify -a command.
Note: For details about activating a core in a virtual partition, see “Instant Capacity
Integration with Virtual Partitions (HP-UX only)” (page 179).
b. Activate a cell board by using the parmodify or parmgr command. See “Activation
of an Instant Capacity Cell Board” (page 93) for details on activation of cell boards (and
memory).
IMPORTANT: To avoid a delay in activation of additional cores, it is a good idea to purchase
and keep in reserve some quantity of Temporary Instant Capacity for the system. Temporary
Instant Capacity can be used to instantly and temporarily activate cores while waiting for an
RTU codeword to be acquired, as in Step 1. See Chapter 5 for details about Temporary Instant
Capacity. You may also temporarily activate one or more cores using the Instant Access Capacity
(IAC) provided with the purchase of Instant Capacity processors.
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