IBM Z IFL / Power IFL
Catalog row in Vendor License Metrics · Cited
- Unit
- Processor
- Aliases
- IBM Z IFL; Power IFL; Integrated Facility for Linux; IBM LinuxONE IFL
- Definition
- IBM Z IFL (Integrated Facility for Linux): a mainframe CPU that is activated and contains or executes all or a portion of the Software. Power IFL (Integrated Facility for Linux): a processor core on an IBM Power system that is activated and contains or executes all or a portion of the Software.
- Counting rules
- IBM Z IFL is a mainframe CPU that is activated and contains or executes all or a portion of the Software. Power IFL is a processor core on an IBM Power system that is activated and contains or executes all or a portion of the Software. Exhibit 1.A: RHEL for IBM Z Unit of Measure is IBM Z IFL (capacity N/A). RHEL for Power is listed as Physical Node or Virtual Nodes (up to 4 processor cores or Socket-pair), not Power IFL. Processor-type matching applies. Red Hat publishes no Socket-pair conversion for IFL.
- Floors / minimums
- RHEL for IBM Z Exhibit 1.A capacity: N/A. RHEL subscription guide (4 Nov 2025): for IBM Z and LinuxONE customers, Red Hat Enterprise Linux does not require the entire physical node to be entitled, only the cores used by Red Hat Enterprise Linux (subcapacity). Red Hat publishes no Socket-pair conversion.
- Applies to products (more)
- Red Hat Enterprise Linux for IBM Z
- Red Hat Enterprise Linux for IBM Z and LinuxONE with Comprehensive Add-Ons
- Red Hat Enterprise Linux for SAP Applications for IBM Z and LinuxONE with Comprehensive Add-Ons
- Related metrics
- Product category