Processor considerations for Linux-only LPs

A Linux-Only mode LP can be allocated either general purpose CPs or IFLs. For optimum cost-effectiveness, IFLs should be used whenever possible. Choose IFL CPs on the Processor page of the Customize/Delete Activation Profile task. IFLs can be allocated to a Linux-Only mode LP as either dedicated or shared.

Utilization of IFLs will be included in the data reported for ICF processors in RMF Partition Data reports and other similar reports. There is no way to distinguish on such a report between data reported for ICF processors and IFLs.

A Linux-Only LP, whether allocated IFLs or general purpose CPs, will not support any of the traditional operating systems (such as z/OS®, z/TPF, or 21CS VSEn. Only Linux® or z/VM® with only Linux guests can run in a Linux-Only mode LP. Logical partitions defined as Linux-Only that attempt to load a traditional operating system will be system check-stopped.