Planning Superdome Configurations
Planning Superdome Configurations
Rules and Guidelines for Configuring a Complex
Chapter 1 61
• A cell must be active in a partition before the partition can use an I/O
chassis attached to that cell.
That is, the cell that is attached to the I/O chassis must not only have
been assigned to the partition, but also powered on and booted; see
“What Happens when a Cell Boots” on page 35.
•A 16- or 32-way-capable system should have at least two I/O
chassis, and a 64-way-capable system should have at least four I/O
chassis.
• The failure of a cell or an I/O chassis will bring down the partition it
belongs to, but you can provide redundancy that will allow you to
reboot the partition with a minimum of downtime; see “Guidelines for
High Availability” on page 66.
When planning or reconfiguring a complex, first map out the partitions,
then plan the I/O for each partition as you would for a single system,
then assign the I/O to individual cells following the rules and guidelines
below.