Scaling Xsan ((full)) Jun 2026

The MDC is the brain of your Xsan. Scaling its efficiency is often more impactful than adding raw storage.

: Ensure MDCs have ample RAM to cache the file system structure, especially for volumes with millions of small files. 3. Storage Infrastructure and Fabric scaling xsan

: Use high-speed SSDs or NVMe storage specifically for metadata to ensure rapid file lookups and locking. The MDC is the brain of your Xsan

: Since Xsan is based on StorNext, keep an eye on cross-platform compatibility if you are scaling into a mixed-OS environment (Windows/Linux). Summary Checklist for Scaling Upgrade metadata storage to SSD/NVMe. Verify Fibre Channel switch zoning and bandwidth. Balance stripe groups to ensure even data distribution. Configure redundant MDCs for high availability. If you'd like to go deeper, let me know: Summary Checklist for Scaling Upgrade metadata storage to

Several organizations have successfully scaled Xsan to large-scale deployments:

Xsan allows you to grow volumes dynamically, but doing so incorrectly can lead to fragmentation.

: Implement multi-pathing to load-balance data across multiple FC ports, providing both redundancy and increased bandwidth. 4. Volume Expansion and Storage Pools