ARC / L2ARC(Adaptive Replacement Cache)
Le cache de lecture en RAM de ZFS (ARC), extensible sur SSD en L2ARC.
ARC makes ZFS feel fast by caching frequently used data in memory — which is why ZFS loves RAM. L2ARC on an SSD helps only specific workloads and still consumes RAM to index, so add it deliberately.
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ZFS
An advanced filesystem and volume manager offering data integrity, snapshots, compression and software RAID.
ECC RAM(Error-Correcting Code Memory)
Mémoire qui détecte et corrige les erreurs mono-bit, améliorant l'intégrité des données sur les serveurs 24h/24.
SSD(Solid-State Drive)
Flash-based storage with no moving parts, far faster and quieter than a hard drive.