SUSE Linux Enterprise Server

What is SUSE Linux Enterprise Server?

SUSE Linux Enterprise Server (SLES) is enterprise Linux - stable, secure operating system with 10+ years support. Certified for SAP HANA, mission-critical workloads and edge computing (Linux Micro).

Key Functions:

• SAP Certified - preferred OS for SAP HANA
• Live Patching - kernel updates without restart
• High Availability - Pacemaker/Corosync clustering
• Linux Micro - immutable OS for edge/containers

SLES Product Family

flowchart TD
    A[SUSE Linux Enterprise] --> B[SLES]
    A --> C[SLES for SAP]
    A --> D[SUSE Linux Micro]
    A --> E[SUSE Manager]

    B --> F[Traditional<br>Workloads]
    C --> G[SAP HANA<br>S/4HANA]
    D --> H[Edge<br>Containers]
    E --> I[Central<br>Management]

    style A fill:#f59e0b,stroke:#d97706,color:#fff
    style B fill:#22c55e,stroke:#16a34a,color:#fff
    style C fill:#22c55e,stroke:#16a34a,color:#fff
    style D fill:#22c55e,stroke:#16a34a,color:#fff
    style E fill:#22c55e,stroke:#16a34a,color:#fff
    style F fill:#6366f1,stroke:#4f46e5,color:#fff
    style G fill:#6366f1,stroke:#4f46e5,color:#fff
    style H fill:#6366f1,stroke:#4f46e5,color:#fff
    style I fill:#6366f1,stroke:#4f46e5,color:#fff

Products in Family

SLES Key Features

SLES for SAP

Preferred operating system for SAP HANA:

flowchart LR
    A[SAP HANA] --> B[SLES for SAP]
    B --> C[saptune<br>Optimization]
    B --> D[HA Extension<br>Clustering]
    B --> E[Certified<br>Hardware]

    style A fill:#6366f1,stroke:#4f46e5,color:#fff
    style B fill:#22c55e,stroke:#16a34a,color:#fff
    style C fill:#f59e0b,stroke:#d97706,color:#fff
    style D fill:#f59e0b,stroke:#d97706,color:#fff
    style E fill:#f59e0b,stroke:#d97706,color:#fff

Feature	Description
SAP HANA certified	Only OS with full SAP certification
saptune	Automatic optimization for SAP workloads
HA Extension	Clustering for SAP HANA System Replication
Resource agents	SAP-specific agents for Pacemaker
SAP Landscape Management	Integration with LaMa

SUSE Linux Micro

Immutable OS for edge and containers:

Aspect	SLES	SUSE Linux Micro
Model	Traditional (mutable)	Immutable
Updates	Package manager	Transactional
Footprint	Full OS	Minimal
Use case	Servers, VMs	Edge, containers, K8s nodes
Rollback	Manual/snapshots	Automatic

Linux Micro use cases:

• K3s nodes on edge
• Container hosts
• IoT gateways
• Embedded systems

SLES vs RHEL

Aspect	SLES	RHEL
SAP support	Preferred by SAP	Supported
Live Patching	Built-in	kpatch (additional)
HA clustering	Built-in	Add-on
Filesystem	Btrfs (snapshots)	XFS
Transactional	SUSE Linux Micro	None
License	Subscription	Subscription
Support cycle	10+ years (LTSS)	10 years

SLES Advantage:

• Preferred OS for SAP HANA
• Btrfs with snapshots and rollback
• SUSE Linux Micro for edge
• SUSE Manager for multi-distro

Who is it for?

Specification

Parameter	Value
Version	SLES 15 SP6
Support	10+ years (LTSS)
Architectures	x86_64, ARM64, IBM Power, IBM Z
Filesystem	Btrfs, XFS, ext4
Kernel	5.14+ (Live Patching)
Containers	Podman, Docker, containerd
Cloud	AWS, Azure, GCP, Oracle Cloud

FAQ

How is it different from RHEL? SLES preferred for SAP, has Btrfs with rollback, built-in Live Patching and HA. RHEL more popular in US, SLES strong in Europe and SAP.

What is SUSE Linux Micro? Immutable OS for edge and containers. Transactional updates, minimal footprint, ideal for K3s nodes and IoT.

How does Live Patching work? Kernel patches applied without restart. Zero downtime for security fixes. Requires subscription.

Does SUSE Manager manage RHEL? Yes. SUSE Manager is multi-distro - manages SLES, RHEL, Ubuntu, Debian.

How much does SLES cost? Subscription model - per server or per socket. SLES for SAP more expensive. PAYG options in cloud.

Does nFlo deploy SLES? Yes. SLES deployments, SLES for SAP, Linux Micro. HA clustering, CentOS/RHEL migrations, SUSE Manager.