[OpenAFS] Server recovery

[Jeffrey Hutzelman]

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On Friday, October 22, 2004 13:24:46 -0400 James Burns <jfburns@gmail.com> 
wrote:

> Thanks, that worked great. I can't believe I've been sitting around
> with a broken cell for this long when the solution was so simple. Oh
> well...

For what it's worth, I recommend making regular backups of the prdb, 
because its contents are critical to the correct functioning of the ACL 
system.  If you have to recreate the prdb from scratch, you may be able to 
reconstruct local users' ID's from other sources, but you are not going to 
be able to recover the ID's of groups, foreign users, and non-null 
instances (any of which may appear on ACL's) and you will not be able to 
recover group memberships.

The attached script (with modifications to reflect the location of your 
server binaries and databases) can be run out of cron or the bosserver to 
produce a prdb.dump each night.  In the event of a corrupted prdb, the 
database can be reconstructed from scratch by feeding this file to pt_util.

It is also useful in the inevitable event than an admin accidentally 
deletes himself.

-- Jeffrey T. Hutzelman (N3NHS) <jhutz+@cmu.edu>
   Sr. Research Systems Programmer
   School of Computer Science - Research Computing Facility
   Carnegie Mellon University - Pittsburgh, PA

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