Managing Superdome Complexes: A Guide for HP-UX System Administrators

Planning Superdome Configurations
Rules and Guidelines for Configuring a Complex
Appendix A336
Rules
Each I/O chassis can be connected to only one cell, and each cell can
be connected to only one I/O chassis.
See “Cell I/O” on page 308 for more information.
Each partition must contain at least one cell that is attached to an I/O
chassis containing core I/O. This cell should be the lowest-numbered
cell in the partition (the leftmost cell in the partition when you are
looking at the cabinetfrom the front). The I/O chassis should have the
following cards:
The core I/O card itself.
Put the core I/O card in the rightmost slot (slot 0; this is the only
slot it can go in).
The boot device controller.
Put the boot device controller in slot 4 of this chassis if it is a 4X
card, or in slot 1 if it is a 2X card.
A removable-media controller card (e.g., for a DVD drive).
Put the card for a removable-media device in slot 8 of this chassis.
A networking card.
Use this for the partition’s connection to the main LAN (e.g., your
site LAN). (The networking connection in the core I/O card is not
the best choice for this.)
This cell will be the core cell, used for booting the partition; and it
will be by default PDCs first choice for booting a partition that
contains more than one viable core cell (that is, more than one cell
attached to an I/O chassis containing core I/O; see “Guidelines for
High Availability” on page 338).
See also “Core Cell” on page 309.
A cell can be attached to an I/O chassis in the same CPU cabinet, or
in an expansion cabinet, but not to an I/O chassis in another CPU
cabinet.
•A32-way-capable system can support only one I/O expansion
cabinet; a 64-way-capable system can support oneor twoexpansion
cabinets.