Integrated Facility for Linux (IFL)
Run Linux workloads on IBM Z and LinuxONE with a cost-effective, dedicated processor

Extensive processing capacity

Support up to 208 user-configurable IFLs and up to 64 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 immediately. 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) functions provide high-speed communication between logical partitions.

On-chip acceleration

On-chip acceleration provides faster AI insights at scale, increased data transfer rates, lower CPU consumption and rapid encryption of CP Assist for Cryptographic Functions (CPACF).

No effect to MSU rating

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

Widely available and supported

Available for all models of IBM Z and LinuxONE, and supported by the Linux OS for IBM Z and LinuxONE, z/VM, KVM and Red Hat® OpenShift®.

Flexible partition management

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

Lower expenses

Reduce operational, software, facility and energy expenses with a high Linux server density.

Reduce risk

Protect against outages with built-in automated diagnostics, problem determination and isolation.

Accelerate AI

Create new value with every customer interaction with accelerated AI insights from IBM Z and LinuxONE.