>>>>> "John" == John Hampton <[EMAIL PROTECTED]> writes:

John> [...] and hand crafted scripts that use
John> ftp or rsync to backup or something.  The biggest problem with
John> these, is that the interface sucks too.  On top of that, they
John> generally aren't very accountable.  A lot of times it can be
John> hard to tell if a backup was good or not.  It's even worse if
John> you're trying to backup a windows client to a linux server.

I did a PLUG AT talk on disk-to-disk backup solutions a few years
ago.  Personally, I just use a naked rsync using the --link-dest, but
in preparing the talk I also looked at two others: rdiff-backup and
BackupPC.  Each uses a different storage mechanism.  

rdiff-backup made me nervous because it stores deltas and any delta
failure blows away the rest of the history.

BackupPC was especially well suited for networks of nearly identical
installs, as the identical content was stored in common and metadata
was stored separately.  It had a web intererface that allowed users to
recover files themselves.  It backs up windows or linux.

The rsync --link-dest method is cool, particularly on a Samba server
because you can export the backup trees read-only and let users do
self-recovery of older snapshots.  Through the magic of hardlinks, I
had about 100 snapshots of a 10 gig workset on a 30 gig HD.

All three of these can use rsync as a network transport.  


-- 
Russell Senior         ``I have nine fingers; you have ten.''
[EMAIL PROTECTED]
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