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

Overriding Deferred Activations and Deactivations
NOTE: Only activation of cores is discussed in this section, but the discussion applies equally
to the deactivation of cores.
If you have performed a deferred core activation, using the -D option in the icapmodify
command, and the intended number of active cores specified is no longer desirable, you can
override the (pending) deferred activation by performing another deferred or instant icapmodify
operation. This second operation overrides the first activation.
You may experience one of the following deferred activation scenarios:
• The deferred number of active cores was incorrect and you want it to be correct when the
system reboots
• The entire deferred operation was accidental and you want to undo it
The following two examples explain how to override these situations.
Example 4-5 Correcting an Incorrect Number of Deferred Active Cores (HP-UX)
1. On your system or partition you currently have 2 cores activated and 2 cores inactive. You
decide 4 active cores are needed, so you perform a deferred activation for 2 additional active
cores by entering the following command:
/usr/sbin/icapmodify -D -a 2
2. Later, and prior to a system reboot, you realize that you need only 3 active cores (not 4).
You can override the initial deferred activation in Step 1 by entering the following command:
/usr/sbin/icapmodify -D -s 3
The -s option in Step 2 (above) sets the number of active cores. The activation takes place after
the next system reboot due to the -D option. You could also perform Step 2 without the -D
option for the icapmodify operation to be instant.
Example 4-6 Undoing an Accidental Deferred Activation (HP-UX)
1. On your system or partition you currently have 2 cores activated and 2 cores inactive. You
accidentally perform a deferred activation for 1 additional active core by entering the
following command:
/usr/sbin/icapmodify -D -a 1
2. Later, and prior to a system reboot, you realize that you didn’t want to activate the additional
core — which would give you 3 active cores — and you want your number of active cores
to be 2. You can override the initial deferred activation in Step 1 by entering the following
command:
/usr/sbin/icapmodify -a 0
The -a 0 option in Step 2 (above) overrides the previous (deferred) icapmodify command,
which was executed in Step 1. The -aoption is relative to the number of active cores (not the
intended number of active cores).
You could accomplish the same result as Step 2 with the following command:
/usr/sbin/icapmodify -s 2
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