VSAN object resynchronization

When a node fails and then recovers (such as in the event of a power or component failure, or if it is offline to perform system maintenance or patching), a catch-up resync operation begins to bring both mirrors into mutual consistency. It is only when this operation completes that the cluster can then fail in any direction while maintaining production.

If a node that is offline does not recover within 60 minutes, the object will be rebuilt with the available resources (assuming that those resources exist and the rebuild can satisfy policy constraints) to restore redundancy. Returning the failed node to the cluster will subsequently return space (capacity) to the VSAN cluster, but it will not immediately trigger additional resynchronization/rebuild activity.