Technical data

HP Instant Capacity on Demand (iCOD) for nPartitions
New iCOD Issues for Managing nPartitions
HP System Partitions Guide: Administration for nPartitions—rp7410
EMSP—[e-mail]
309
While there is one iCOD license for the entire server complex, iCOD
processors are activated and deactivated independently for each nPar.
Each nPar has its own settings for iCOD contact, notification, and
processor configuration purposes.
• Passwords are not required for activating and deactivating iCOD
processor on nPartitions.
On nPar servers under either iCOD contract (iCOD Purchase or
iCOD Utility) you can perform all tasks that change the iCOD
processor configuration for an nPartition.
On non-partitionable systems an HP service password is required for
some iCOD processor deactivation tasks.
• Both varieties of iCOD support “load balancing” processors across
nPartitions in the same server complex.
When using either iCOD Purchase or iCOD Utility, you can instantly
adjust each nPar’s number of activated processors as system loads
demand and maintain the same total number of activated processors
in the complex.
For example, you can deactivate processors in one underused nPar
and activate the same number of processors in another, more heavily
used nPar to load balance using the same number of processors.
This load balancing does not change any nPar cell assignments. Each
nPar keeps the hardware assigned to it while iCOD software in each
nPar either activates or deactivates processors.
New iCOD Issues for Managing nPartitions
iCOD introduces several new issues for managing nPartitions. The
following list describes some of these new management issues for nPar
systems that have iCOD configured:
• At least one iCOD processor must be activated for each active cell in
an nPartition.
For example, a three-cell nPar with iCOD must have at least three
activated iCOD processors, and the iCOD software ensures that each
cell has a processor activated.
• The maximum number of activated processors in an nPar is the iCOD
“requested active processors” setting.
HP Restricted / DRAFT
DRAFT NOV 2001