mardi 27 janvier 2015

Caching HDD Files on an SSD


Given a system with a fast internal SSD, and a slower external HDD, is it possible to improve the HDD's performance using free space on the SSD without creating a Fusion Drive? In my case the external drive is always connected (the system needs the extra capacity).


Really I'm looking mostly to use a big chunk of space for read-caching, and maybe to buffer writes (provided the content doesn't stay there for long, and is safely written out before being unmounted).


Unfortunately the SSD isn't big enough to take the full contents of the HDD, and I'd like to avoid having to manually symlink folders, though I may do it for some temporary/cache folders where it won't matter if they're moved.





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