Status: IN
Multi-segment WAL replay provides reliable cross-segment continuity: segment rotation fsyncs the outgoing file before closing it, and EOF within one segment advances to the next rather than terminating replay, ensuring no inter-segment data loss during normal operation.
Reliable under normal operation but missing directory fsync means a crash could lose a newly created segment directory entry
Depends on (SL): wal-eof-advances-to-next-file, wal-rotate-fsync-before-close
Unless: wal-no-directory-fsync