ZFS

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

📐 Storage Layout#

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

⚡ Properties & Tuning#

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

🔄 Operations#

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

📚 External Resources#

• OpenZFS Documentation - The upstream project documentation.