Tag: ZFS

Deep dive into the Z File System architecture, independent of the specific operating system implementation.

📐 Storage Layout Link to heading

  • VDEVs: Topology choices (Mirrors, RAIDZ1/2/3) and expansion.
  • Special Devices: SLOG (Write Intent Log) and L2ARC (Read Cache) usage.

⚡ Properties & Tuning Link to heading

  • Performance: Recordsize tuning, compression algorithms (LZ4/ZSTD), and ashift.
  • Data Integrity: Checksums, Copy-on-Write (CoW) mechanics, and resilvering priorities.

🔄 Operations Link to heading

  • Snapshots: Creation, retention policies, and zfs send/recv workflows.
  • Recovery: Pool import flags and disaster recovery.

📚 External Resources Link to heading

  • ZFS - Adaptive Replacement Cache (ARC) Explained
    3 min read

    ZFS - Adaptive Replacement Cache (ARC) Explained The Adaptive Replacement Cache (ARC) is a core component of the ZFS filesystem and is critical to its performance. It's an advanced caching mechanism that resides in the …

    #ZFS