Hello, what happens if one of the pinot server disk with 25% of the segments fails and I restore the data from 1 day old backup that holds 20% of segments? Will the segments from the backup disk is honored or everything has to begin from scratch?

The old segments will be picked up, and the remaining ones will be downloaded from the deep store

@Jackie I don’t have any deep store configured. However I can see other all segments are getting populated in controller data folder which is a NFS. I am using realtime table.

Yeah, then controller serves as the deep store, where servers can download segments from