System Functions; Partitioning - NEC Express5800 1160Xd User Manual

System Functions

The following subsections describe select system functions.

Partitioning

The Express5800/1000 series server can run more than one operating system or
instances of an operating system in the same main cabinet. For example, a configuration
containing 4 Cell Boards (Cells hereafter), Cell #0, Cell #1, Cell #2, and Cell #3, can
operate as follows:
!
Cell #0 and Cell #1can operate under the same operating system #0 as an SMP
(symmetric multi processor) configuration.
!
Cell #2 can operate under operating system #1, which is different from Cell #0,
Cell #1, and Cell #3.
!
Similarly, Cell #3 can operate under operating system #2, which is different from
Cell #0, Cell #1, and Cell #3.
Here, the Cell group which operates under the same operating system is called a
partition. In the example below, Cell #0 and Cell #1 can be Partition #0, Cell #2 can be
Partition #1, and Cell #3 can be Partition #2.
Partitioning makes it possible to allocate processor capacity according to workload
status, resulting in flexible system operation.
1-12 System Overview
Figure 1-7. Example of Partitioning Cells