Messages in this thread | | | Subject | Re: SGI's XFS DONATED AS OPEN SOURCE!!!!!!!!! | From | Nat Lanza <> | Date | 01 Jun 1999 10:30:18 -0400 |
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Dan Koren <dkoren@cthulhu.engr.sgi.com> writes:
> File system companies like Transarc or Veritas could not exist if > such were the case. File systems can be ported between different > OS's, even though this isn't trivial. Developing a transactional > file system from scratch is still a lot more work than porting an > existing one.
Transarc may not be a good example here; many of the tricky bits of AFS stay in userland, where it's much easier to port things.
It is still possible to port an entirely in-kernel filesystem without _too_ much pain, though -- I'm doing it now for a filesystem based on our NASD research that was originally written for OSF1. Apart from some cache issues, the port process has been surprisingly painless.
--nat
-- nat lanza --------------------- research programmer, parallel data lab, cmu scs magus@cs.cmu.edu -------------------------------- http://www.cs.cmu.edu/~magus/ there are no whole truths; all truths are half-truths -- alfred north whitehead
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