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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