UFS-Implementations
 

Does anybody know a site on which various UFS-Implementations are compared? Eg ufs, ufs2, ufs for solaris, aix, hp-ux ... whatever.
I am not looking for general information about what os supports what fs but rather for detailed information, like what is exactly contained in the bootbolock, the superblock, how fragmentation is handled, whether there are differences in handling v-node, i-node among those implementations, performance, self-restoring mechanisms, ...

Any hints are appreciated :)

Hmm may be read source code and fire some searches at google.