I was wondering whether it would be worth setting up a "shadow" cell. This would be located in another building/city and would mirror critical data from the primary cell. Imagine the scenario where all your servers get wiped out. Sure, you keep offsite tape backups but how quickly could you reconstruct? AFS clients can simply be "pointed" at the shadow cell by changing /usr/vice/etc/ThisCell and the /usr/afsws symbolic link. So what would a shadow cell be capable of? How about duplicating all the pts and kaserver data together with some essential volumes. The prime purpose of the shadow cell would be to "get you by" until the main cell can be recovered. Perhaps the shadow is a single server. Some questions: a) How would you set up a duplicate kaserver in the shadow cell? b) How would you duplicate the pts data? c) What other data or services could/should be replicated? Just a thought. -- paul http://acm.org/~mpb/homepage.html
