File System

Turkish equivalent: Dosya sistemiDomain: Operating Systems

A storage layer that maps file and directory names to persistent data and metadata while defining access, consistency, and crash-recovery behavior.

A file system is more than a name-to-block lookup table. Directory structure, permissions, timestamps, allocation metadata, journaling or copy-on-write behavior, and caching policies together define the file semantics visible to applications.

A successful write() does not necessarily mean that the data has reached durable media. The page cache, file-system journal, device cache, and directory metadata introduce distinct durability boundaries. Reliable file publication therefore needs to reason about temporary files, fsync, rename, and—where required—directory synchronization under the same crash model.

Updated: 08.09.2026

Related technical publications

Publications whose title or summary directly references this concept.

Operating Systems: Processes, Memory, Files and I/O

Operating systems notes covering system structure, processes and threads, CPU scheduling, concurrency, deadlocks, virtual memory, file systems, I/O and protection mechanisms.

A Data Carving Algorithm for Digital Forensics

File carving recovers candidate files without filesystem metadata by combining signatures with structural validation; header matching alone produces weak boundaries and false positives.

Red Hat Enterprise Linux System Administration

A practical Red Hat Enterprise Linux system administration reference covering the shell, file systems, users, SELinux, systemd, networking, firewalls, DNF, LVM, storage, virtualization, Podman, automation, image mode, troubleshooting, and performance from fundamentals to advanced operations.