5 Reasons to Upgrade ZFS RAM from 8GB to 16GB

Doubles your ARC cache Going from 8GB to 16GB gives the ARC roughly 12GB instead of 5-6GB after system overhead. That extra space keeps more active files in memory.

Reduces disk thrashing More cached data means the disks spin up less often. You get lower latency for repeated reads and less drive chatter.

Improves snappy navigation If you serve media files or back up a small office, you’ll notice faster browsing and less waiting. The improvement scales with workload.

Scales proportionally with RAM ZFS will use whatever RAM you give it. Unlike gaming, more RAM directly expands the ARC — no diminishing returns at this range.

Offers high bang for the buck 8GB to 16GB is one of the best upgrades on a low-RAM system. Just ensure your motherboard supports the RAM type and ideally buy a matched pair to avoid instability.