https://docs.fluentbit.io/manual/administration/backpressure

Mitigate the risk of data loss by configuring secondary storage on the filesystem using the storage.type of filesystem (as described in Buffering and storage). Initially, logs will be buffered to both memory and the filesystem. When the storage.max_chunks_up limit is reached, all new data will be stored in the filesystem.

had a question regarding this doc, when we enable storageType to filesystem, will data be pushed from 1.memory buffer 2. filesystem buffer 3. or it uses both to push data to destination