Messages in this thread | | | Date | Tue, 15 Dec 1998 10:41:02 -0500 (EST) | From | "Jason A. Pfeil" <> | Subject | Re: autofs vs. Sun automount -- new fs proposal |
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Ahem. lsof is a program that returns a list of all open files. Hence the name, ls (LiSt) of (of Open Files).
On Tue, 15 Dec 1998, Martin Tessun wrote:
> > The Solaris automounter allows a "seamless" mount of a local directory > > onto another place on the local filesystem. This is frequently used, for > > example, when a user logs in to the actual fileserver. The home directory > > is usually located at /export/home/joeblow and is automounted to > > /home/joeblow when referenced. This could, of course, be achieved by > > actually NFS mounting from the local server. I'd rather shoot myself > > however (am I sure Solaris doesn't do this? no) > > Solaris does achieve 'NFS-mounts from the local Server' via a special > "Filesystem", the so called "Loopback Filesystem (lsof)". If you give me > a few days I can look what the lsof does. I expect, that it does > something like a "redirect" or a "special hard-link" without increasing > the Link-Counter. > > So what I think you have to do is to write a new filesystem with a new > mount-command (mount.lsof), so that you can do a mount -F lsof > localhost:/export/home/bla /home/bla. > > In my opinion this isn't too easy to handle. By the way: I would never > let inexperienced people work on the Fileserver; even I wouldn't let any > person except Administrators work on the fileserver. > > > autofs can do this. However, it does so trivially by creating a > > symbolic link which is then traversed. This has mostly cosmetic > > disadvantages, but a few more substatial ones. Any subprocess will see > > the actual 'pwd' of /export/home/joeblow. Thus inexperienced users will > > get confused and bother their system administrator, and, more seriously, > > an application may wrongly determine the location of its private files, > > defeating the 'logical structure' of the filesystem, and preventing > > restructuring of the physical layout. > > Martin > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
---- Jason A. Pfeil pfeil@cs.fsu.edu Information Systems Developer jpfeil@lsi.fsu.edu CASDL (850)644-8014; fax: (850)644-4952 Learning Systems Institute University Center C-3527 http://idl.fsu.edu Tallahassee, FL 32306-2540
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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