zLinux Consulting

IBM LinuxONE and zSystems provide unmatched reliability, scalability, and security for Linux workloads — powering mission-critical applications in banking, insurance, government, and large enterprises. Zwiegnet delivers deep expertise in running Linux on IBM Z hardware, from bare-metal to virtualized environments, with a focus on performance, compliance, and cost optimization.

Our zLinux services include:

• z/VM & KVM Hypervisor Administration – Full management of z/VM 7.x, guest Linux virtual machines, resource allocation, dynamic memory, CPU sharing, and live guest migration.
• Performance Tuning & Optimization – z/Architecture-specific tuning (HiperDispatch, SMT, large pages, cache optimization), I/O tuning (FICON, zHPF), and workload balancing for high-throughput applications.
• High Availability & Disaster Recovery – GDPS, Parallel Sysplex integration, HiperSwap, metro/global mirror, and automated failover for near-zero RTO/RPO.
• Security Hardening & Compliance – Pervasive encryption, z/OS Security Server integration, Linux SELinux/AppArmor, crypto cards (CCA/CPACF), and alignment with PCI-DSS, HIPAA, NIST, and FIPS 140-3.
• Container & Cloud-Native Workloads – Red Hat OpenShift, IBM Cloud Pak, Kubernetes on zLinux, Podman, and container security for microservices and DevOps pipelines.
• Networking & Storage – OSA-Express, HiperSockets, RoCEv2, zFCP, ECKD/FICON storage, and integration with IBM Storage (DS8K, FlashSystem) and cloud block storage.
• Migration & Modernization – Assess current z/OS or distributed workloads, plan migrations to zLinux (e.g., z/OS → LinuxOne), COBOL/DB2/MQ porting, and hybrid mainframe/cloud strategies.
• Monitoring & Automation – z/OSMF integration, Prometheus/Grafana, IBM Z Monitoring Suite, Ansible for z/VM and Linux guests, and automated provisioning.
• Troubleshooting & Support – Rapid diagnosis of performance issues, virtualization faults, crypto failures, and hardware problems on IBM Z platforms.

Ideal for: financial institutions, insurance companies, government agencies, retailers, and enterprises running mission-critical Linux workloads on IBM LinuxONE/zSystems — seeking maximum security, scalability, and compliance.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to zLinux specialists with proven experience in IBM Z hardware and enterprise Linux environments.