TRIM
A command that tells an SSD which blocks are no longer in use so it can maintain performance and endurance.
Modern Linux runs periodic TRIM via the fstrim.timer. On ZFS, autotrim can be enabled per pool. Proper TRIM keeps SSDs fast over time and reduces write amplification.
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SSD(Solid-State Drive)
Flash-based storage with no moving parts, far faster and quieter than a hard drive.
NVMe(Non-Volatile Memory Express)
A fast storage interface designed for SSDs, offering much lower latency than SATA.
ZFS
An advanced filesystem and volume manager offering data integrity, snapshots, compression and software RAID.