v1.0 - Initial Reference Architecture

KvirtIO v1.0 — Initial Reference Architecture

First public release of KvirtIO, a vendor-neutral reference architecture for
enterprise-grade KVM virtualization on SUSE Linux Enterprise Server (SLES),
designed for high I/O density and High Availability workloads.

Included

• High-Level Design (HLD) — full architecture document (IT/EN), covering:

  • 5-node compute cluster design with zero-swap policy and Hugepages
  • Multi-LUN striped storage topology (blk-mq) for I/O parallelism
  • Cluster LVM (lvmlockd + dlm) for shared volume management
  • Dual-level fencing (fence_idrac + SBD/Witness LUN)
  • Decoupled control plane and network segregation (VLANs, LACP bonding)
  • Architectural decision matrix with rationale and rejected alternatives

• Reference scripts (PoC/lab use — see README for production guidance):

  • Host load watcher (CPU/RAM → Pacemaker crm_attribute)
  • I/O latency watcher (multipath await via iostat)
  • VM live migration script
  • VM creation script
  • HTML infrastructure status generator
  • Mail alerting integration

• Systemd units for watcher scheduling

• Sudoers configuration for least-privilege monitoring user

Notes

This is a reference architecture, not a turnkey product. Scripts are intended
for lab/demo/PoC validation; production deployments should integrate the
documented design with existing monitoring/automation tooling (Ansible,
Terraform, Prometheus, Zabbix, etc.) as described in the README.