Central processors must be restricted for classified/restricted Logical Partitions (LPARs).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256867	HLP0060	SV-256867r958472_rule		High

Description
Allowing unrestricted access to classified processors for all LPARs could cause the corruption and loss of classified data sets, which could compromise classified processing.

STIG	Date
IBM Hardware Management Console (HMC) Security Technical Implementation Guide	2024-06-24

Details

Check Text ( C-60542r890945_chk )
Have the system administrator or systems programmer use the Hardware Management Console; to verify that the LPAR processors are dedicated for exclusive use by classified LPARs. Use the Processor Page to do this. The Dedicated Central Processors option must be turned on. If Central processors are not restricted for classified/restricted LPARs, this is a FINDING.

Fix Text (F-60485r890946_fix)
Review the Processor Page under PR/SM and turn on the Dedicated Central Processor option for classified or restricted LPARs. For unclassified LPARs, this option should not be turned on, unless determined by the site.