RHEL to SLES Migration
Organizations migrate from RHEL to SLES for SAP alignment, cost optimization, SUSE ecosystem tooling, or strategic vendor direction. Zwiegnet delivers expert, phased migrations — addressing differences in package management (dnf/yum vs. zypper), security models (SELinux vs. AppArmor), admin tooling (cockpit/Red Hat tools vs. YaST), repositories, and subscription handling — while ensuring minimal disruption to your applications and business operations. On-site in Watertown, WI or remote nationwide.
Start Your RHEL to SLES MigrationOur RHEL to SLES Migration Services
RHEL and SLES are both enterprise Linux platforms, but differ significantly in tooling, security defaults, lifecycle management, repositories, and ecosystem integration. There is no automated in-place conversion utility for RHEL to SLES — migrations require assessment, rebuilding, reconfiguration, testing, and parallel validation. We minimize risk for SAP, manufacturing, healthcare, finance, and custom enterprise workloads running on RHEL 7/8/9 transitioning to SLES 12/15.
Our migration services include:
- Discovery & Compatibility Assessment – Inventory installed RPMs, custom repositories, SELinux policies, kernel modules, services, systemd configurations, third-party applications, and business dependencies.
- Platform Differences Remediation – Map dnf/yum → zypper, Red Hat Subscription Manager → SUSE Customer Center, SELinux → AppArmor (or policy strategy), firewalld → SUSE firewall, and RHEL module streams → SLES module extensions.
- Application Rebuild & Validation – Recompile custom software where needed, rebuild RPMs against SLES libraries, adapt automation scripts, validate SAP/SAP HANA compatibility, and test middleware behavior.
- Configuration & Data Migration – Secure migration of /etc configurations, application data, databases, users/groups, and permissions using rsync or structured backup/restore methods — ensuring proper ownership and security contexts.
- Parallel Environment Build-Out – Deploy SLES test systems (VM, bare metal, or cloud), validate workloads side-by-side with RHEL, perform UAT and load testing before cutover.
- Planned Cutover & Rollback Strategy – Execute staged migrations with final sync, DNS/IP updates, load balancer reconfiguration, and documented rollback paths to minimize downtime.
- Post-Migration Hardening & Optimization – Implement AppArmor policies, tune kernel and performance parameters, configure YaST modules appropriately, integrate monitoring, and align with SUSE best practices.
- SUSE Subscription & Lifecycle Planning – Assist with SUSE Customer Center registration, module activation (Basesystem, Server Applications, HPC, SAP), and lifecycle planning to optimize costs and support coverage.
- Compliance & Security Alignment – Ensure CIS benchmarks, FIPS requirements, audit controls, and logging meet regulatory or internal governance standards after migration.
Our phased methodology focuses on business continuity. With proper staging and testing, many organizations achieve near-zero unplanned downtime during transition.
Located between Madison and Milwaukee, Wisconsin since 2009 — trusted enterprise Linux expertise for Watertown-area organizations migrating from RHEL to SLES.