Storage DRS is the VMware vSphere feature that recommends or automates virtual-disk placement and balancing across datastores in a datastore cluster.
Simple definition
Storage DRS is the VMware vSphere feature that recommends or automates virtual-disk placement and balancing across datastores in a datastore cluster. It belongs to the Virtualisation / Conteneurs vocabulary and is useful when reading architecture diagrams, product documentation, logs, or administration procedures.
What is it used for?
Its main purpose is to balance capacity and I/O load so one datastore does not become disproportionately full or busy. The practical value depends on the surrounding architecture, security model, and operational requirements.
How does it work?
Storage DRS monitors space and, depending on configuration, latency, then recommends or triggers Storage vMotion while respecting rules and affinities.
Key points
- Scope: The VMware vSphere feature that recommends or automates virtual-disk placement and balancing across datastores in a datastore cluster.
- Operational goal: Balance capacity and I/O load so one datastore does not become disproportionately full or busy.
- Implementation: Storage DRS monitors space and, depending on configuration, latency, then recommends or triggers Storage vMotion while respecting rules and affinities.
Points to watch
Migrations consume network and storage resources; define realistic thresholds and verify compatibility, load windows, and affinity rules.
In short
Storage DRS = the VMware vSphere feature that recommends or automates virtual-disk placement and balancing across datastores in a datastore cluster. Use it when you need to balance capacity and I/O load so one datastore does not become disproportionately full or busy.