System information

306 Logical Partitions on System i5
Figure 10-40 Reset the processing unit identifier
Processing unit identifier values
The power control network identifier is intended to uniquely identify each enclosure on the
power control network. Typically, these identifiers are automatically assigned by firmware. In
some cases, a user may wish to assign specific identifiers to specific drawers. This value is 2
hexadecimal digits. Supported processing unit identifiers are shown in Table 10-2.
Table 10-2 Processing unit identifiers:
Configure I/O enclosures
This function would normally be used by your hardware service provider. After the server
firmware has reached the
standby state, you can configure I/O enclosure attributes as
follows:
򐂰 Display the status, location code, rack address, unit address, power control network
identifier, and the machine type and model of each enclosure in the system.
򐂰 Change the identification indicator state on each enclosure to
on (identify) or off.
򐂰 Update the power control network identifier, enclosure serial number, and the machine
type and model of each enclosure.
򐂰 Change the identification indicator state of the SPCN firmware in an enclosure to
enable or
disable.
򐂰 Remove rack and unit addresses for all inactive enclosures in the system.
Model or expansion unit Processing unit identifiers
520 B4
550 B5
570 B2
570 (with one or more secondary units B3
5074 and 5079 81
5088 and 0588 89
5094 and 5294 8A
0595 and 5095 8B
D10 88
D11 B6
D20 8C