Eric Lowe <[EMAIL PROTECTED]> writes:
> Frank Hofmann wrote:
> > sorry opensolaris-discuss, this originally bounced. Trying again.
> >
> > We're proposing a generic "fs-discuss" for OpenSolaris.
>
> Any reason why we shouldn't have a generic filesystem community? You're
That's exactly what my already mentioned proposal at
http://www.opensolaris.org/jive/thread.jspa?messageID=28219渻
suggested:
> Speaking of which, it occured to me recently, when I posted a question
> about the interaction of zfs, automount/autofs and nfs to nfs-discuss and
> zfs-discuss, but got no reply whatsoever
>
> http://www.opensolaris.org/jive/thread.jspa?threadID=6717&tstart=0
>
> that a different organization of the filesystem and storage related
> communities might be much better than what we currently have:
>
> I can think of two models here:
>
> * Create a new filesystems community to subsume the existing zfs, ufs and
> nfs communities as projects. There might be a new autofs/automount
> community as well, and the recent proposal for a cifs community would
> naturally fall in as a cifs project, as has already been suggested.
>
> The problem is what to do with svm, which doesn't fall under filesystems.
>
> * Therefore, an alternative model would be to use the storage community
> (given that block and object based storage are getting closer recently,
> cf. the object storage devices work for SCSI) as an umbrella for both
> block-based storage (e.g. iscsi, svm projets, maybe others?) and
> filesystems (with the projects mentioned above).
i.e. create a generic Filesystems community and grandfather the existing
FS-related communities as projects, maybe adding more related projects at
the same time.
> proposing a discussion list, plus there is work afoot by yourself and
> possibly others to document filesystem interfaces. There are FS ports to
> OpenSolaris (ext2, FUSE). And, as someone pointed out recently on
> opensolaris-code there is a kit (albeit outdated now) for writing a simple
> filesystem for education purposes which is portable across many systems
> including OpenSolaris kernel.
That was probably me, speaking of Erez Zadok's FiST work on stackable
filesystems:
http://www.filesystems.org/
The current version only includes a Solaris 7 template, but since it's
based on lofs, it seems to be relatively easy to port forward to Solaris
10+. I've already started investigating what it takes to do so, but got
distracted due to several other projects. I had planned to propose a FiST
project when I get a bit spare time for that.
Besides, I've already contacted Erez about the license: he's willing to
re-license the code under whatever license is appropriate for eventual
inclusion in OpenSolaris if it should ever come to that.
I think FiST offers great potential for filesystem work, given that there
are Unionfs
http://www.filesystems.org/project-unionfs.html
and xCachefs (which might even become a successor to Solaris CacheFS):
http://www.fsl.cs.sunysb.edu/docs/cachefs-tr/index.html
> Filesystems seem as alive and well as anything is alive and well in
> OpenSolaris that has a community now.
That's certainly very true, and could become even more so with more
documentation available on the Solaris VFS interface.
Rainer
--
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Rainer Orth, Faculty of Technology, Bielefeld University
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