Tag Archives: fs

Storage Menagerie

I recently found myself needing to become familiar with the disk layouts of a few filesystems for a future research project. At the same time, I wanted to experience the fail whale that is github.com (my other git trees are hosted on repo.or.cz, which is spare and of tenuous funding, but works just fine). So over the weekend I threw together this little git tree.

Not much there, just ext2 and yaffs2 so far. I chose the latter because I wanted to look at a log-structured filesystem, while simultaneously producing something useful for Android work. I plan to add btrfs shortly and maybe some other log FS. This is just junk code: if you really want to use these filesystems in FUSE, there are much better implementations. Also there’s a great hack out there to run the kernel FS implementations in userspace via UML.

Still, it’s fun reinventing the wheel, and it’s a nice way to get a handle on this stuff.