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Abstract: “Solid-state drives (SSDs) are quickly becoming an affordable alternative to mechanical hard disk drives. SSDs perform low latency reads and have access times that are magnitudes smaller than those of their mechanical counterparts. Many current file systems make clever optimizations that target mechanical hard disk drives; the faster performance of SSDs without use of mechanical parts makes obsolete many of these file system optimizations. We created a file system meant for use with SSDs. Our file system IotaFS is based on the small, simple Minix file system, and we investigate a few optimizations of our own. We compare the performance of IotaFS with existing file systems such as ext3 and ReiserFS on both SSDs and mechanical hard drives.”

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