Overview

What is Integrated Facility for Linux?

IBM® Integrated Facility for Linux (IFL) is a processor dedicated to Linux® workloads on IBM zSystems® and IBM LinuxONE. It is supported by the Linux operating system for IBM zSystems and LinuxONE, IBM z/VM® and KVM. IBM z16™ and LinuxONE Emperor 4 offer massive processing capacity, on-chip acceleration, and industry-leading capabilities for cyber resiliency.

IT professional inspecting a server in a data center

Benefits

Features

Extensive processing capacity

Support up to 200 user-configurable IFLs and up to 40 TB Redundant Array of Independent Memory (RAIM). Operate asynchronously with standard processors.

Designed for performance

Improve performance capability with enhanced Simultaneous Multi-Threading (SMT) and Single Instruction Multiple Data (SIMD) technologies.

Flexibility to add IFLs

IFLs can be added on the fly. IFL technology supports On/Off Capacity on Demand (O/O CoD), Capacity Upgrade on Demand, and Capacity BackUp (CBU).

High speed communication

IBM HiperSockets™ and Shared Memory Communication (SMC) functionality provide high speed communication between logical partitions.

On-chip acceleration

New on-chip acceleration provides faster AI insights at scale, increased data transfer rates, lower CPU consumption and rapid encryption of CPACF.

No affect to MSU rating

IFL does not increase charges for IBM zSystems software running on “standard” processors, nor does it affect the MSU rating or the IBM zSystems model designation.

Widely available and supported

Available for all models of IBM z16, z15™, z14®, z13®, z13s® and LinuxONE, and supported by the Linux OS for IBM zSystems and LinuxONE, z/VM and KVM.

Flexible partition management

Manageable by PR/SM or IBM Dynamic Partition Manager in logical partition (LPAR) with dedicated or shared processors. Requires an LPAR definition.

Client stories

Related products and services

IBM Cloud Infrastructure Center

Provide simplified Infrastructure-as-a-Service (IaaS) management for your workloads.

IBM z/VM

Improve performance with our highly secure and scalable hypervisor virtualization technology.

IBM z16

Accelerate decision velocity, protect against threats and modernize for hybrid cloud.

IBM LinuxONE Emperor 4

A highly secure, scalable server platform to help achieve lower energy costs and smaller carbon footprint.

Resources

Using KVM Virtualization

Run Linux as a guest of the open source KVM hypervisor.

IBM Redbooks®

Explore more information and technical insights about IBM Linux on IBM zSystems and LinuxONE.

IBM Global Financing

Discover customized payment options from the industry's top IT financier.

IBM Z and LinuxONE Community

Access a rich community of business and technical expert blogs and forums for Linux on IBM zSystems and LinuxONE.

IBM Developer Community

Access open-source projects, developer advocates and a global community of developers for Linux