File System Design part 1: XFS
Generally, file systems are not considered "sexy." When a young programmer wants to do something really cool, his or her first thought is generally not "Dude, two words...File System." However, I am what is politely termed "different." I find file systems very interesting and they have seldom been more so than they are right now. Hans Reiser is working on getting Reiser4 integrated into the Linux kernel, the BSD's are working on getting a journaled file system together, and Sun Microsystems just recently released a beta of ZFS into OpenSolaris. This is an excellent time to be me.
Looking around on the net, you get the idea that for every strange, complicated, and niche subject there is an author that is utterly convinced that people need to know about it. Add me to the list. This article (or actually three articles, because I am much more delusional than most of these authors) will be on file system design and specifically the new file systems that are just appearing. We will start with the basics, UFS/FFS, and then proceed to our first modern file system, XFS.
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