Month: 2025-10. Focused on delivering high-availability storage architecture for XCP-ng. In Oct 2025, shipped XHA architecture with shared storage (NFS + XOSTOR) for xcp-ng-org, enhanced resilience for critical workloads, and laid the groundwork for DRBD reliability improvements. Key artifacts include architecture diagrams, XOSTOR integration via NBD HTTP servers, comprehensive communication path diagrams, heartbeat and volume structure definitions, and DRBD single-primary limitation mitigation strategies. The work culminates in a robust foundation for future HA features and easier disaster recovery planning.

September 2025 monthly summary: Focused on strengthening the reliability of storage test suites in the xcp-ng-tests repository, delivering a focused bug fix that reduces test flakiness and improves CI confidence. The change targets LINSTOR tests by addressing potential failures caused by resource deletion during coalesce operations and refactoring _get_diskful_hosts to fetch the VDI-associated resource instead of caching it. This leads to more stable verifications and faster feedback on storage-related changes.

July 2025 monthly summary focusing on delivering practical user-facing documentation improvements, reliability fixes, and coding standards across two repositories: xcp-ng/xcp-ng-org and xcp-ng/xcp-ng-tests. This period delivered concrete business value by reducing risk, accelerating onboarding, and improving maintainability.

June 2025 monthly summary for repository xcp-ng/xcp-ng-org: Delivered CLI Update Guide Improvements for LINSTOR/XOSTOR, consolidating and clarifying the update guidance to improve upgrade reliability and reduce support overhead. Key changes reorganized the LINSTOR update warning to appear earlier in the installation steps, clarified the recommended procedure for updating LINSTOR satellites and controllers to prevent communication issues, and removed a redundant sentence in the XOSTOR CLI update guide for brevity and clarity. These documentation enhancements align with the team's commitment to robust upgrade workflows and help reduce post-deployment incidents.

February 2025 monthly summary for xcp-ng-org: Focused on documenting storage and upgrade workflows for XOSTOR to improve deployment reliability and user onboarding. Delivered two feature docs: dm-cache configuration and upgrade process, enabling operators to configure, assess, and upgrade XOSTOR with clear prerequisites, steps, and troubleshooting. These docs lay groundwork for faster adoption and lower support load.

December 2024: Key feature delivered in xcp-ng-org: XOSTOR Documentation – Memory Usage Guidance for LINSTOR Services. Added a warning in the docs advising users to monitor memory and allocate sufficient RAM to Dom-0 to prevent Out-Of-Memory errors. Commit f13264bfecd0b8022071ba1875e2458fab0be532. No major bugs fixed for this repository this month. Overall impact: improved operational guidance, reduced risk of memory-related outages in LINSTOR deployments, and better capacity planning. Technologies/skills demonstrated: documentation best practices, change traceability via commit, memory usage risk assessment, cross-team collaboration.