Hi,
to my point of view it is the best, to do regular volume dumps (vos
dump) on these external disks, this should be no problem with a little
bit scripting around.
there is another advantage: using the -localauth option for vos, you can
perform this action without the need of having tokens.
Regards
Klaas
Jeffrey Hutzelman schrieb:
On Tuesday, January 10, 2006 12:19:52 PM -0500 Madhusudan Singh
<[EMAIL PROTECTED]> wrote:
Hi
With extensive help from Russ and others on this list, I setup our afs
cell on a debian server many months ago, and it has been working out
for
us really well. I have defined backup volumes for every user and bos
executes a backup process every 24 hours at an unearthly hour. However,
the backup volume is located on the same physical disk as the actual
user volumes, and thus is really not a backup.
The physical location of the cell server (there is only one machine in
this cell with no plans to add any more) is quite secure. I would like
to migrate the backup volumes onto removable storage all the same (such
as a large USB harddisk). I have a few questions :
1. Is this a wise choice given the constraints (I cannot add any more
machines to this cell, at least right now) ?
2. Depending on your opinion on 1, how should I migrate the backup
volume, nothing else, to the new location ?
You cannot "migrate" backup volumes to storage other than where the
corresponding read/write volume resides. An AFS backup volume is a
read-only, copy-on-write snapshot of its parent; it is intended to
allow users to recover from unintended changes without administrator
intervention (if they notice soon enough), and to provide something
you can take offline long enough to dump it without causing a
significant service outage.
For disaster recovery, you will need to perform regular volume dumps
to separate media such as disk or tape, using 'vos dump', the built-in
backup system, or one of several third-party packages which are
available for this purpose.
-- Jeffrey T. Hutzelman (N3NHS) <[EMAIL PROTECTED]>
Sr. Research Systems Programmer
School of Computer Science - Research Computing Facility
Carnegie Mellon University - Pittsburgh, PA
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