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Re: [Bacula-users] Bacula Server disaster recovery.
2012-03-02 09:05:12
On 3/2/2012 6:02 AM, Wassim Zaarour wrote:
Hi List,
We are backing up to disks not tapes, now I need to set up
a plan in case the bacula server (director) crashes.
What to do in case the MySQL catalog is lost? Can we
recover? I guess it is easy to keep copy of configuration
files to install on a new system but what about the catalog?
What is the best plan for the server's disaster recovery?
Thanks.
I use a RunScript that runs after the last job of the night. The
script saves an sql dump, config files, and bootstrap files to a NFS
share on another server. The server hosting the NFS share is, of
course, also backed up, giving a means to restore a one day old copy
should both servers fail.
Bacula Dir and SD run in a qemu-kvm VM. The advantage is that it is
possible to send a complete Bacula server image and XML libvirt
definition along with the offsite backup media. The VM image is a
ready to run Bacula server complete with up to date catalog. Restore
from a total loss is then simply dd'ing the VM image to new hardware
and starting the VM.
I suppose it depends on the infrastructure being used. In this case,
production servers are all VMs running on a two node
Pacemaker/Corosync cluster, so the above is a good fit. Since Bacula
can run on either node at any time, a hardware failure on a single
node does not require a restore, so more attention has been given to
offsite recovery. However, the nightly scripted backup of the
catalog is still needed to protect against weird database or
filesystem errors.
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