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- Path: sparky!uunet!wupost!waikato.ac.nz!aukuni.ac.nz!cs18.cs.aukuni.ac.nz!rob
- Newsgroups: comp.protocols.appletalk
- Subject: Re: CAP6.1 and Publish and Subscribe
- Message-ID: <1992Sep10.063852.6782@cs.aukuni.ac.nz>
- From: rob@cs.aukuni.ac.nz (Rob Burrowes )
- Date: Thu, 10 Sep 1992 06:38:52 GMT
- References: <1992Sep1.102406.26203@praxis.co.uk> <1992Sep03.084812.28167@bas-a.bcc.ac.uk>
- Organization: Computer Science Dept. University of Auckland
- Lines: 31
-
- In <1992Sep03.084812.28167@bas-a.bcc.ac.uk> m.abbott@eleceng.ucl.ac.uk (Mark Abbott) writes:
-
- >In article <CKD.92Sep2142014@loiosh.eff.org> Christopher Davis,
- >ckd@eff.org writes:
- >>This is probably a naive suggestion, since I have not attempted to grok
- >>the aufs code, but what about a .macdirid file in each directory? That
- >>way even moving your directory across filesystems won't kill you...
-
- >Very true, and probably the thing to do. However, if you have multiple
- >Aufs servers that share filespace, e.g. /home shared between several
- >machines using NFS, then you need a central DirID issuing process for
- >your shared filespace. This process also needs to be able to convert
- >from DirIDs back into Unix pathnames. It strikes me that this is the
- >major problem since you can happily move directories and the converting
- >process will know nothing about it. It'd take somebody with more Unix
- >programming experience than me to arrive at a robust & portable solution !
-
- A solution to this problem might be to build a MAC file system in a single
- UNIX file or on a dedicated disk accessed by its raw device name. This
- wouldn't allow easy access to MAC files from UNIX which is a nice feature of
- CAP but this might be offered as an alternate form of file system for aufs
- with the existing form still available for UNIX files.
-
- A set of utilities would have to be written to read the MAC files from UNIX.
-
-
- --
-
- Rob Burrowes rob@cs.aukuni.ac.nz.
- System Admin
- Computer Science Dept., Auckland University, Private Bag, Auckland, New Zealand
-