Specifications

78 IBM Flex System p260 and p460 Planning and Implementation Guide

This core deconfiguration feature can also be updated after installation by using

the field core override option.

The field core override option specifies the number of functional cores that are

active in the compute node. The field core override option provides the capability

to increase or decrease the number of active processor cores in the compute

node. The compute node firmware sets the number of active processor cores to

the entered value. The value takes effect when the compute node is rebooted.

The field core override value can be changed only when the compute node is

powered off.

The advanced system management interface (ASMI) is used to change the

number of functional override cores in the compute node. For more information,

go to the following website:

http://publib.boulder.ibm.com/infocenter/flexsys/information/topic/com.

ibm.acc.psm.hosts.doc/dpsm_managing_hosts_launch_asm.html

For detailed information about the field core override feature, go to the

following website:

http://publib.boulder.ibm.com/infocenter/powersys/v3r1m5/topic/p7hby/fi

eldcore.htm

You can find more related information at the following website:

http://publib.boulder.ibm.com/infocenter/powersys/v3r1m5/topic/p7hby/vi

ewprocconfig.htm

System maintenance: The configuration information about this feature is

stored in the anchor card (see 4.10.3, “Anchor card” on page 110) and the

system board.

If the system board is replaced, transfer the anchor card from the old system

board to the new system board. If the anchor card is replaced, the information

is transferred from the system board to the new anchor card upon the

next boot.

both the system board and the anchor card are replaced, then the field core

override option must be used to reset the core count back to the

previous value.