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]
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However, if the number of active cells is greater than the number of
“requested active processors” then the iCOD software activates more
processors than were requested: one processor is activated for each
active cell in the nPar.
• Only processors on active cells can be activated by iCOD.
Inactive cells in an nPar cannot have processors activated by iCOD in
the nPar. To activate processors on inactive cells, you first must make
the cells active.
• Activating and deactivating processors can potentially affect software
packages that rely on certain processor IDs to be present, such as
certain processor set (Pset) configurations. Refer to the chapter on
Psets for details.
Likewise, changing the number of activated processors may have
implications for managing software that is licensed on a per-processor
basis.
• Adding or removing cells in an nPartition with iCOD does not
necessarily increase or decrease the number of activated processors in
the nPar.
The iCOD software activates the requested number of processors for
an nPartition as long as the nPar has enough configured processors to
satisfy the request.
Adding a cell to an nPar increases the total processors and the
number of configured processors in the nPar. However, if the
requested number of processors remains the same for the nPar then
the same number of activated iCOD processors are available after
performing a reboot for reconfig to make the newly added cell active.
For example, in a two-cell nPartition that has six of its eight
processors activated with iCOD, adding another four-processor cell
brings the total processors to 12. However, the iCOD software keeps
the number of activated processors at six (no change). (Other of the
new cell’s resources—such as memory and I/O—are made available
for use in the nPartition.)
Likewise, removing a cell from an nPar reduces the total processors
and the number of configured processors in the nPar. If enough
processors remain available then the requested number of iCOD
processors are activated.
HP Restricted / DRAFT
DRAFT NOV 2001