Henry;

The implementation explanation was not clear because I am not
sure if it would do what I was thinking.  I was thinking that I would
use
Coda to cache read-only media (CD-ROMs) on the client side as Coda
does from the media server (Coda server and SCM).  However, the server
and client would be the same.  Thus, a media server would have dynamic
caching if you will and the user-level security of Coda going for it.
However,
in this context, I think Coda may be a little "heavy" for such an
implementation.
It just seemed like a good possibility to use Coda schemes tailored to a
different
use where there could be a heterogeneous network.

Scott

> -----Original Message-----
> From:	Henry Pierce 
> Sent:	Tuesday, March 24, 1998 12:35 PM
> To:	'coda-discuss_at_coda.cs.cmu.edu'
> Cc:	'linux-coda_at_coda.cs.cmu.edu'
> Subject:	Re: Using Coda for caching on local machine rather than
> over network? ??
> 
> 
> I am not clear on precisely the question you have in mind about Coda,
> CDROM's and Ext2fs.  All of these services are autonomous.  If you
> had a clearer example of what you would like to try, I would be happy
> to be of further assistance.
> 
> As  for running a  Coda Client and a Coda Server on the same machine, 
> there are are only two issues you need to be aware of:
> 
> 	+ Virtual Memory
> 	+ Disk Space
> 
> As mentioned in our documentation, running a Coda Server, Coda Client
> and X-Window on the same machine requires somewhere around 64MB of VM
> for a moderately configured Coda-Server and Coda-Client.  So, if you
> only have 32MB of VM, for example, , I wouldn't recomment it.
> 
> As for disk space, you will need:
> 
> Coda-Client-Cache-Space + Coda-Server-RVM-Space + Coda-Data-Storage
> Space.
> 
> These can add up to quite a lot on one machine very quickly.
> 
> regards,
> henry m. pierce
> 
> 
> ------------------------
> Henry M. Pierce
> Research Programmer
> Department of Computer Science
> Carnegie Mellon University
> 5000 Forbes Avenue
> Pittsbugh, PA
> 
> 
> hmpierce_at_cs.cmu.edu	hmp_at_infomagic.com
> 
> On Tue, 24 Mar 1998, Scott Smyth wrote:
> 
> > Date: Tue, 24 Mar 1998 11:10:08 -0500
> > From: Scott Smyth <ssmyth_at_realminfo.com>
> > Reply-To: coda-discuss_at_TELEMANN.CODA.CS.CMU.EDU
> > To: "'linux-coda_at_coda.cs.cmu.edu'"
> <linux-coda_at_TELEMANN.CODA.CS.CMU.EDU>,
> >     "'coda-discuss_at_coda.cs.cmu.edu'"
>      <coda-discuss_at_TELEMANN.CODA.CS.CMU.EDU>
> > Subject: Using Coda for caching on local machine rather than over
> network? ??
> > Resent-Date: Tue, 24 Mar 1998 11:14:12 -0500
> > Resent-From: coda-discuss_at_TELEMANN.CODA.CS.CMU.EDU
> > 
> > In the context of a read-only system being cached...say
> > a CD-ROM to a linux ext2 partition: could Coda be implemented 
> > to act as a cache fs on the same machine (i.e., server=client) 
> > rather than over a network while maintaining Coda features locally
> > just as a would over a network?  Are there any problems that
> > would arise between the client, the server, and the SCM being
> > the same machine?
> > 
> > Thanks,
> > Scott
> >