Technical data

Planning nPartition Configurations
HP Superdome nPartition Configuration Guidelines
HP System Partitions Guide: Administration for nPartitions, rev 5.1 115
HP Superdome nPartition
Configuration Guidelines
On HP Superdome servers, the locations of the cells you assign to each
nPartition and the resulting loads on server interconnections can affect
system performance within the server’s nPartitions.
HP offers specific guidelines for configuring nPartitions on HP
Superdome servers in order to ensure good system performance.
NOTE The guidelines in this section apply to HP Superdome servers only.
These guidelines follow two basic configuration principles:
1. Avoid sharing interconnecting hardware (crossbars and crossbar
links) among multiple nPartitions.
2. Minimize the number of crossbar links used by each nPartition, but
do not overload crossbar links by creating nPartitions that can
generate more cell communications traffic across the links than the
links can support. Overloading crossbar links degrades performance.
The above principles are incorporated into the guidelines below, and are
accounted for in the charts of recommended HP Superdome nPartitions.
Also see nPartition Requirements and Recommendations on page 110 for
other details.
Configuration Guidelines for HP Superdome nPartitions
Use these guidelines to help determine which cells to assign to the
nPartitions you create on HP Superdome servers.
❏ Define nPartitions in order of size.
Assign cells to the nPartition that has the largest cell count first.
Then select cells for the next largest nPartition, and so on, and
finally choose cells for the nPartition with the fewest cells last.