Hello,
I have questions regarding duplicates of backups. At the moment, I use
self-written rsync scripts on a dedicated backup server which works in two
steps. First, it collects all data from all servers and stores it on a
local disk. Then it copies that data to rotating USB-devices. Let's say I
have USB disks 1 and 2 and I switch them every day (just for simplicity,
the actual setup is more complicated). In effect, if I want to recover
data from the previous day, I just need to ssh into the backupserver. For
older data I can get the external disks from another building. No matter
where I get the data, there is always a full backup on a specific disk for
a specific day. I began configuring bacula with some test cases, but
before I go further, I'd like to know if I can implement this "double
backup" and "all data everywhere" with bacula. With rsync it's easy to
have all data everywhere because of the --update option. I'm not sure how
to implement this in bacula using a catalogue. If my explanation is not
sufficient, here is an example:
Files to backup on monday to disk 1: A, B, C, D
Let's say I make some changes to A and add file E.
On tuesday, I then need to backup A*, B, C, D, E to disk 2.
So on wednesday morning I have A*, B, C, D and E on the backupserver and
on disk 2, and A, B, C, D on disk 1.
Now I add file F and connect disk 1. So I need to copy files A*, E and F
to it.
Would that work? Can I tell the catalogue to manage all external disks +
the local disk with the duplicates?
Thanks for any help,
Chris
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