On Wed, Jul 27, 2005 at 09:41:07PM +0200, Chris Huebsch wrote: > On Wed, 27 Jul 2005, ERIC K. CHEU wrote: > > > > >thanks... I'm actually not a novice AFS administrator. But my bosses have > >just asked me to ask what other people to provide for more redandant > >storage and for charge back model. > >We are already going to have a raid 5 system implemented to hold our AFS > >volumes. And my boss was trying to think of ways to make AFS volumes more > >redundant while at the same time being available for change (something > >that is hard to do when you only can make read-only replicas). Now > >if there were such a thing as read-write replicas, then that'd solve a lot > >of our problems... > > But there are not (yet). There are some strategies using ro-clones, > which can be transformed to rw-volumes if worse things happen.
something I find intriguing is a program called rsnapshot. It uses rsync and some other tools (gnu cp) to create time sliced snapshots. They use hard links so that the N snapshots of M size don't occument N X M space. Now, if openafs supported hardlinks.. this would be a very efficient way of making a RO replica a near hot swappable clone if the RW volume went away suddenly. Suggestions? > > And a further hint from me: Do never trust Raid 5. The disks are like > twins. They have the same histroy, they lived the same live, they die > the same day. > > > Chris > -- > Chris Huebsch www.huebsch-gemacht.de | TU Chemmnitz, Informatik, RNVS > GPG-Encrypted mail welcome! ID:7F2B4DBA | Str. d. Nationen 62, B204 > Chemnitzer Linux-Tage 2006, 4.-5.Maerz | D-09107 Chemnitz > http://chemnitzer.linux-tage.de/ | +49 371 531-1377, Fax -1803 > _______________________________________________ > OpenAFS-info mailing list > [email protected] > https://lists.openafs.org/mailman/listinfo/openafs-info -- David Bear phone: 480-965-8257 fax: 480-965-9189 College of Public Programs/ASU Wilson Hall 232 Tempe, AZ 85287-0803 "Beware the IP portfolio, everyone will be suspect of trespassing" _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
