hesela.devFailure domain
A failure domain is a group of components that can be affected by the same failure event because they share a dependency or physical location.
Hosts, racks, power supplies and network paths can define different failure domains. [1] Placing redundant data on separate hosts does not necessarily separate it across racks or power sources. [2] Domain boundaries describe the failures a placement policy is intended to isolate; they do not prove statistical independence between components in different domains.
Relations
- related
- crush-placement, placement-group, mirroring, erasure-coding