[osandov]

There's also f2fs [1][2], which has a similar design but runs on flash devices with an FTL and thus takes a more middle road. It still has a log structure and tries to make things easy for the FTL by doing large, sequential, out-of-place writes whenever possible, but it takes advantage of the FTL when it makes things simpler, like for certain metadata that's easier to update as a small random write.

[1]: http://lwn.net/Articles/518988/ [2]: http://lwn.net/Articles/518718/