Filesystem overhead

Bob Bell bbell at users.sourceforge.net
Thu Jul 31 09:07:09 EDT 2003


On Wed, Jul 30, 2003 at 05:48:06PM -0400, Bill Freeman <f at ke1g.mv.com> wrote:
> 	Also, thinking about it later, I'm likely wrong that an inode
> was a whole block, even with 512 byte blocks.  More likely is that
> original UFS inodes were 64 bytes, with 8 fitting in a 512 byte block.
> I'm sorry, I don't have any early sources to check on this.  If I
> scrounge in the basement I might find my bound copies of the Unix
> Programmers Manual (UPM), which might have a white paper on the
> filesystem, but this seems to be too academic to bother.

    Close.  UFS inodes are 128 bytes, fitting 4 per block.

-- 
Bob Bell <bbell at users.sourceforge.net>



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