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Cinder: Resilient Edge Storage

Cinder is EmberNet's storage service. It gives your edge workloads durable, replicated block storage that survives the loss of a disk or a node, and gives you a single view of capacity, volume health, and backups across every cluster you run, with no external storage array required.

What it does​

  • Replicated volumes. Every volume keeps multiple copies on different nodes, so a single disk or node failure never loses data.
  • Automatic healing. When a replica is lost, Cinder rebuilds it on healthy capacity on its own.
  • Honest capacity. Usage is measured from real on-disk data, not nominal volume sizes, so what the dashboard shows is what you're actually consuming.
  • Guardrails. Cinder warns you before a disk runs out of room to place a rebuilt replica, which is the moment you'd otherwise lose your safety margin.

Backups and CinderSilo​

Cinder backs volumes up to an external target: AWS S3 or any S3-compatible store, Azure Blob, or NFS. When you configure a target, EmberNet verifies it immediately rather than failing silently on the first backup.

CinderSilo is EmberNet's own S3-compatible object store, available as a managed backup target so your backups can stay within the platform.

Using Cinder​

Cinder is part of the platform, so there is nothing to deploy. You manage it from the Storage view in the dashboard, which is documented in detail under Dashboard → Storage. Storage-health conditions raise alerts automatically.

Next steps​