storage-bus-cache · shipping · also Standalone Storage Bus Cache

Storage Bus Cache

Storage Bus Cache is a Windows Server feature that binds faster drives to HDD capacity on a standalone Storage Spaces server.

Related Observatory article: Storage Bus Cache on hesela.com

The documented Server 2022 setup needs the Failover Clustering feature installed but excludes cluster membership and all-flash systems. [1]

For resilient mirror-accelerated-parity volumes, this cache handles reads; the ReFS mirror tier separately absorbs writes in Shared mode. Simple spaces allow read/write caching without drive-failure tolerance. Shared mode reserves part of the faster media for cache rather than dedicating every fast drive. [1]

Relations

related
Storage Spaces, Storage Spaces Direct, Mirror-accelerated parity, ReFS

Citations

  1. Microsoft Learn: Standalone Storage Bus Cache prerequisites and resiliency-dependent caching (accessed 2026-10-23)
Sources & caveats
  • Documentation review, not a Windows experiment. Scope follows the tutorial's explicit prerequisites, not its broader applicability banner. No measured performance or failure-rate claim.

JSON: /data/terms/storage-bus-cache.json

Published by Hesela team · Updated

Report a correction · Editorial standards · Reuse guidance

Cite this page
Hesela team. Storage Bus Cache. Hesela. 2026-10-23. https://hesela.dev/terms/storage-bus-cache/