We haven't thought about HSM until recently.  Quality of the code is our
first concern and a lot of work needs to be done there, but it's always
neat to dream up some new features.

OK here are the first porting instructions.  Study the document:

http://telemann.coda.cs.cmu.edu/doc/ps/kernel-venus-protocol.ps

Look at the directory kernel-src/vfs/linux21 
for the most transparent implementation we currently have as an example. 

When this starts working, you'll need a tool called potemkin. Potemkin is
a kernel code tester.  It speaks the same format to the kernel as Venus,
but it merely "server" a directory on the local disk.  

Next for simplicity, we build glibc on the SGI and Solaris machine, that
will eliminate almost all of the problems with include files. 

Potemkin is in util-src/potemkin/potemkin -- it should not take too much
hassle to build it.  In fact the easiest for us (if possible) might be for
me to get accounts on some SGI and Solaris machine and get this compiled
for you -- in that way you won't have to learn about configure bogosities
etc. 

- Peter -



On Thu, 9 Apr 1998, Dwight Kelly wrote:

> On Thu, 9 Apr 1998, Peter J. Braam wrote:
> 
> > I would be more than willing to help you guys with the port, provided that
> > the code comes back to the open domain -- we are committed to a free Coda. 
> > 
> > If you want to get cracking let me know, and I will point you at relevant
> > documents and tell you what to do first.   The user level code could
> > probably be ported very easily by myself -- the kernel code will be the
> > stuff that's new.
> 
> YES! We believe in OpenSource and would return the developed drivers to
> Coda group. Also, we have developed a nice prototype HSM system recently
> that looks like it would hook into CodaFS/Venus easily. Our architecture
> is remarkably similar yours. Anyone there thinking about HSM 
> functionality as part of Coda release?
> 
> ---
> Dwight Kelly
> Essential Technical Services, Inc.  
> 315 Allen Street Cumming, GA 30130
> voice:(770) 889-2848  fax:(770) 889-2624 Internet:dkelly_at_etsinc.com
> http://www.etsinc.com
>