synology uses btrfs which provides almost the same capabilities, but ZFS usually... | Hacker News

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		black3r on Jan 10, 2020 \| parent \| context \| favorite \| on: FreeNAS synology uses btrfs which provides almost the same capabilities, but ZFS usually eats all the RAM it gets as some sort of cache to speed up disk operations.

hestefisk on Jan 10, 2020 [–]

You are thinking of the ARC. By default, ZFS will allocate what is available but you can constrain it as you like.

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