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sorenjan ◴[] No.44467571[source]
Is it possible (and easy) to make a NAS with harddrives for storage and an SSD for cache? I don't have any data that I use daily or even weekly, so I don't want the drives spinning needlessly 24/7, and I think an SSD cache would stop having to spin them up most of the time.

For instance, most reads from a media NAS will probably be biased towards both newly written files, and sequentially (next episode). This is a use case CPU cache usually deals with transparently when reading from RAM.

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1. Nursie ◴[] No.44469239[source]
I used to run a zfs setup with an ssd for L2ARC and SLOG.

Can’t tell you how it worked out performance-wise, because I didn’t really benchmark it. But it was easy enough to set up.

These days I just use SATA SSDs for the whole array.