Marcus Watts writes:
> Hm. Our AFS db servers (umich.edu production cell) don't even *have*
> a /usr/afs/local/sysid file. I can't find any mention of such a file
> in our copy of the AFS source either. What's in it? Any idea what uses
> it?
Thanks to Jeffrey Hutzelman for explaining some of this!
> What version of AFS are you running anyways? What version of AIX?
The 530 was running 3.2.5. The C20 was (necessarily) running 4.1.4,
so I couldn't just move the system disk as Jeffrey suggested.
> If I were doing such a move, there are about two possibilities:
>
> (1) the 530 & C20 are running the same revision of the OS, and can
> understand the same physical filesystem.
>
> In this case, what I'd do would be to
> configure the C20 as a "blank" fileserver/db server.
> all fileserver binaries, empty db files.
> shut the 530 down
> attach & configure the drive to the C20
> configure the C20 to the same IP address
> as the 530
> bring it up. The db files should be automatically
> propogated to the C20 from other DB servers,
> and the fileserver should be happy.
> The win here is that by reusing the same drive & physical
> files, the whole process could be quite quick.
> Based on your experience, of course, I'd wonder if this was
> entirely right. Perhaps there's something strnage
> in those "uuid"s in the latest vldb format that isn't
> quite kosher.
I can't tell you how much better you have made me feel! This is
exactly what I did.
It's possible that removing or copying the sysid file might have saved
me, but I would want to understand more about its purpose and
implementation before trying that.
> (Backups, both of all the files on the fileserver, & the db files, would
> be a good idea, in any event. pt+vl+ka aren't all that big, and are
> definitely worth keeping backed up.)
Did that. Just before. Good thing.
> What you went through sounds painful, though. 4G of data isn't
> much fun to restore under the best of circumstances.
The restore was MUCH faster on the C20! But since the VLDB was
roached, I couldn't use the 'diskrestore' option. I had to search the
backup logs to see which volumes in it were missing from the
reconstructed VLDB.
-Rick
--
|Rick Cochran phone: 607-255-7223|
|Cornell Materials Science Center FAX: 607-255-3957|
|E20 Clark Hall, Ithaca, N.Y. 14853 email: [EMAIL PROTECTED]|
| "The Founding Fathers did not establish the United States as a |
| democratic republic so that elected officials would decide trivia, |
| while all great questions would be decided by the judiciary." |
| Judge Andrew Kleinfeld |
