Whether you're hobbyist or managing a production cluster, ZFS gives Proxmox administrators enterprise-grade storage capabilities: snapshots, compression, replication, and rock-solid data protection. In this session, Allan Jude and JT Pennington will walk through practical ways to get the most out of ZFS in Proxmox. From tuning for performance to designing efficient replication, you'll come away with tested practices you can put to use right away. What You’ll Learn: - How to tune ZFS for performance in Proxmox environments - Compression and caching strategies for different workloads - Replication workflows that balance efficiency with resilience - Common pitfalls and how to avoid them Learn more: Timestamps 0:00 – Intro 1:07 – Overview 3:12 – ZFS vs Ceph: Design, Complexity & Scaling Trade-offs 10:14 – Unclustered Pair vs Centralized Storage Architectures 15:00 – Performance Tuning: Record Sizes, Amplification & Compression 18:27 – CPU Pinning, NVMe Queues & Metadata Caching Explained 23:53 – ARC, L2ARC & Prefetch Behavior in ZFS 28:42 – Replication, High Availability & Disaster Recovery Scenarios 34:10 – Bookmarks, Snapshots & Incremental Backup Strategies 40:22 – ZFS Block Size Changes (8K → 16K) & RAIDZ Efficiency 47:09 – Hosting VMs on HDDs: Metadata VDEVs & SLOG Performance 49:08 – IOPS Bottlenecks & NVMe-over-Fabric Design Guidance 50:36 – Storage Hardware Tips: Drive Choices, Pool Space & SLOG Mirrors 55:22 – Closing Remarks, Poll & Upcoming Webinars