Planning Superdome Configurations
Planning Superdome Configurations
Rules and Guidelines for Configuring a Complex
Chapter 160
Partitions, Cells and I/O Chassis
Before you go on, read:
• “What is a Cell?” on page 27:
- “Cell I/O” on page 32.
- “Core Cell” on page 33.
• “What is an I/O Chassis?” on page 41:
- “Core I/O” on page 42
• “What is an I/O Expansion Cabinet?” on page 44.
• “What is a Partition?” on page 22.
Other terms and concepts:
• 16-, 32-way, 64-way-capable system; CPU cabinet:
see “What is a CPU Cabinet?” on page 23.
• Complex: see “What Is a Complex?” on page 16.
• GSP: see “What is the Guardian Service Processor?” on page 20.
• System Bus Adapter: see “Cell I/O” on page 32.
Points To Note
• In a partition containing more than one cell, all I/O is accessible
from all the cells.
For example, in a four-cell partition in which two cells are attached to
IO chassis, code being run by a processor in one of the cells that is
not attached to an I/O chassis will have the same access to disks and
other I/O devices as the cells to which the I/O chassis are physically
attached.
Each partition must have I/O, meaning that at least one cell in each
partition must be attached to an I/O chassis, but this does not mean
every cell in every partition needs to be attached to an I/O chassis (in
fact, that is not possible without an IO expansion cabinet.)
NOTE I/O expansion cabinets are not available with early shipments of
Superdome. Contact your HP Sales Representative for up-to-date
information.