Technical data

nPartition System Overviews

nPartition System Hardware Details

HP System Partitions Guide: Administration for nPartitions, rev 5.1

nPartition System Hardware Details

This section gives physical details about the Hewlett-Packard servers

that support nPartitions, including HP Superdome, rp8400, and rp7410

servers.

The following nPartition server hardware topics are covered here:

• Cells on page 47

• Processors: HP PA-RISC CPUs on page 48

• nPartition I/O Chassis and PCI Card Slots on page 48

• Internal Disk Devices for HP rp7410 and rp8400 Servers on page 55

• nPartition Service Processor (GSP or MP) Hardware on page 56

Also see Supported HP Server Models on page 34 for an introduction to

the HP nPartition-capable server models, including architectural

overviews.

Cells

This section brieﬂy describes cell hardware details for HP’s nPartition

servers.

Each cell in an HP nPartition server contains HP PA-RISC processors,

memory DIMMs, and provides the connection to any I/O chassis attached

to the cell.

For details about cell ID formats, see Specifying Cells and I/O Chassis to

Commands on page 87. For details about conﬁgurable cell attributes, see

Cell Properties on page 61.

All cells assigned to an nPartition must have the same ﬁrmware

revisions and the same type/speed of processors and should have

identical memory conﬁgurations. On HP servers that have multiple

nPartitions, each nPartition can have different types of cells.

All processors in a cell must be of the same type and speed. All memory

DIMMs in a cell should be identical for best performance.

In HP Superdome servers, each cell can support up to 32 memory

DIMMs and 1–4 processors.