Posted Oct 18, 2012 14:23 UTC (Thu) by arnd (subscriber, #8866)
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f2fs isn't really optimized for SSDs at all. The largest media today that it actually targets are USB sticks of maybe 128GB that are both slow and expensive. Rather than using a RAID of 40 USB sticks and f2fs, I would always recomment getting a bunch of SSDs and using btrfs on them.