>AFAIK, FiST (which underlies the referenced "support" for unionfs on Solaris) >was never >updated past Solaris 7/SunOS 5.7. That's a problem, because it depends on the >(private, uncommitted, and all-too-undocumented!) vfs interface, which changed >at least from 5.7 to 5.8 (to add support for umount -f, I think); not sure >what if >any subsequent changes there have been. I've wanted to play with FiST, but >didn't >stumble across it 'til I was already running Solaris 8, so no go; and >updating it myself >would've been rough (see below for part of why). > >Sure would be nice if there were a doc on the vfs interface. I understand >it's one >of the few places left for adding certain types of magic, so it may well never >become >committed (unless there's some way to achieve both extensibility and >compatibility - >maybe the last change provides a hook for that?). But there will always be >non-Sun >filesystem implementations (AFS, DCE/DFS, VxFS, ...), and a pseudo-NFS server >isn't always a suitable approach.
Sun has always worked with 3rd party FS vendors to give them sufficient understanding of the filesystem interfaces (VxFS, DFS/AFS). But this often done, I think, on a source code access basis. Casper _______________________________________________ opensolaris-discuss mailing list [email protected]
