[OpenAFS] any hack to get multiple read/write mirrors

[Derek Atkins]

What application do you have that requires a single 1TB volume?
You do realize that you can split different projects, different
home directories, different packages, etc. into their own volumes,
right?

Another question: are two are people in different offices going to be
changing the same file (or set of files) at the same time?  Note that
locking is at the file level, so unless multiple people are sharing
the SAME FILE you may not need the sharing semantics that you think
you do.  Quite honestly, it sounds like you might be better off paying
a consultant to come in and help you design your filestore -- that way
you can tell them exactly what you have in mind in greater detail than
you've been here on the list.

>From what you've said, I don't see why you can't have a file server in
each location that holds the RW volumes (note: MULTIPLE volumes) that
are nominally changed by people in that office.  People at remote
sites will still be able to access that volume over the net.  But
again how well this works depends on your connectivity between offices
and your access/usage patterns (which again you haven't mentioned).

I'm sorry I can't give you more useful help here, but you haven't
given enough detail of your usage/application.

-derek

Zachary Denison <zacharydenison@yahoo.com> writes:

> My application is this:  to have a shared filesystem
> between all offices of a company. in different cities
> and countries.  the each office gets a server with a
> 1TB volume and this filesystem server runs linux or
> freebsd.. or some free unix based os.  each office has
> NT workstations that mount the shared volume (using
> SAMBA or some such software) so its users can work on
> files.. If something gets changed in 1 office, then it
> should have that change propagated to all offices so
> all people can see the change, which is why  original
> the file locking is important.  
> 
> --- Derek Atkins <warlord@MIT.EDU> wrote:
> 
> > Considering you have not stated your real
> > application, it may be that
> > AFS is not the solution you are looking for.  Or,
> > perhaps it is but
> > you just aren't architecting your system to fit the
> > AFS model.
> > 
> > -derek
> 
> 
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-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
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