User's Manual

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Setting usage rights for a partition
Self enforcement requires you to decide how many usage rights are to be assigned for a partition
and set it. You can use the icapmodify command for this purpose. The number of active cores
is set to the number specified as a command argument. You must run the command after you
boot to a partition for the first time and subsequently after resizing the partition:
icapmodify s <number of core usage rights>
Sample output:
# icapmodify -s 4
4 cores are intended to be active and are currently active.
Deactivating Cores
You must deactivate the cores in order to maintain compliance when usage rights are moved.
You can deactivate the cores until a minimum number required by the partition is reached:
icapmodify d <number of cores to deactivate>
IMPORTANT: In HP Integrity Superdome 2, an active partition must have a minimum of one
active core. This is unlike the previous generation of servers where a partition with x cell boards
would required a minimum of x core usage rights (one per cell board).
Sample output:
# icapmodify -d 1
3 cores are intended to be active and are currently active.
Activating Cores
Cores can be dynamically activated on a partition to address any additional demand. As
mentioned before, iCAP does not perform any compliance check to see if the total active cores
exceed the total usage rights purchased. It is required that the cores should be available to the
partition for activating them. that is, core activation request will fail if the request exceeds the
assigned number of cores for the partition. Execute the following command to activate the cores:
icapmodify a <number of cores to activate>
Sample output:
# icapmodify -a 1
4 cores are intended to be active and are currently active.
Using iCAP Memory
The iCAP memory is offered in units of 16 GB, and the RTU is available in units of 4 GB. During
the time of activation, you must purchase enough iCAP RTUs to activate all the memory on the
cell blade. After the purchase, the iCAP cell blade can be turned on. You must reboot the partition
on which the iCAP memory is activated for the iCAP changes to take effect. The cores in the cell
blade with inactive memory need not be activated for the memory to be activated. After adding
a cell blade to a partition to activate the memory, you must adjust the number of active cores to
ensure compliance. Figure 8-1 describes the configuration options for iCAP memory.
132 Using Instant Capacity on HP Integrity Superdome 2