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

Instant Capacity Integration with Virtual Partitions (HP-UX only)
Overview
Instant Capacity may be present on HP-UX systems or partitions where virtual partition
technology is employed. In a virtual partition environment, cores that are not assigned to any
virtual partition are considered inactive (in addition to other classes of inactive cores). Unassigned
cores can be assigned (activated) or deassigned (deactivated) using either the icapmodify
command or the vparmodify command, depending on the type of adjustment needed, the
version of vPars being used, and the level of logging or reporting desired.
One important consideration is that vparmodify can be used to activate or deactivate cores in
other virtual partitions within the nPartition; icapmodify only activates or deactivates cores
within the current virtual partition (the partition where the command is invoked). vparmodify
does not change the value for the number of intended active cores for the nPartition.
Another consideration is that core assignment via the vparmodify command does not result
in logging of the activation, e-mail configuration change notification, or transmission of an asset
report to HP.
NOTE: Deferred activations and deactivations are not supported in any vPar environment.
The minimum required versions of vPars software for HP-UX systems are as follows: for HP-UX
11i v1, vPars version A.03.05; for HP-UX 11i v2, vPars version A.04.01; for HP-UX 11i v3, vPars
version A.05.01. Each of these versions provides a virtual partition environment which is tightly
integrated with Instant Capacity, making it less likely for a complex to be misconfigured or to
violate contractual compliance.
The Instant Capacity software must be installed on all virtual partitions in an Instant Capacity
system.
See the Installing and Managing HP-UX Virtual Partitions manual for details of virtual partitions.
This manual can be found on the HP web site: http://docs.hp.com
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