On Thursday, August 03, 2006 11:53:14 AM -0700 Roel Flora <[EMAIL PROTECTED]> wrote:
I was wondering if anyone has done a migration from Transarc to OpenAFS recently and can provide some suggestions on how to do the migration smoothly. We have a large number of existing users and around 1 Terabyte of data to move. I expect that there will be some downtime that is necessary while we are doing the migration, but we would like to minimize the downtime if possible.
You should not need more than a few minutes of downtime, to allow your database servers to be upgraded. Even that can mostly be avoided, if you are careful enough and if you're not upgrading from something too old.
So far, we have installed and setup OpenAFS servers using the same cellname as the old Transarc servers but they are independent of each other (using different ip addresses and not talking to each other).
Don't do that. Forget about the "new" cell, and instead set up new servers in the existing cell. Then you just move volumes to them, and your users notice no downtime. One of AFS's most important features is that even major upgrades like this can be done without user-visible downtime; take advantage of that.
-- Jeffrey T. Hutzelman (N3NHS) <[EMAIL PROTECTED]> Sr. Research Systems Programmer School of Computer Science - Research Computing Facility Carnegie Mellon University - Pittsburgh, PA _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
