Backup Central

Hello,

we got a new server in our company. It run several services on several
XEN virtual machines (e.g. mail, webserver, yp). I want to know if it is
better to run bacula in its own XEN or directly on the hostsystem? This
server has enough hardware ressource for both.

<http://dict.leo.org/ende?lp=ende&p=/gQPU.&search=best>best regards

Dominik Jonas

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On Monday 05 March 2007 11:03, Dominik Jonas wrote:
Hello,

we got a new server in our company. It run several services on several
XEN virtual machines (e.g. mail, webserver, yp). I want to know if it is
better to run bacula in its own XEN or directly on the hostsystem? This
server has enough hardware ressource for both.

<http://dict.leo.org/ende?lp=3Dende&p=3D/gQPU.&search=3Dbest>best regards

Dominik Jonas

If you want to access a tapedevice, it won't work in a XEN domain. We also =
use=20
XEN quite intensive, but as backup is a major service imho, I'd rather not=
=20
run it as a XEN domain, but in Dom0 or rather at a dedicated machine (which=
=20
is my first choice).

Just my 50 cents..

=2D-=20
Benjamin Zeller
Ing.-B=FCro Hohmann
Bahnhofstr. 34
D-82515 Wolfratshausen

Tel.: +49 (0)8171 347 88 12
Mobil: +49 (0)160 99 11 55 23
=46ax: +49 (0)8171 910 778
mailto: zeller < at > ib...

http://www.ibh-wor.de

Dominik Jonas wrote:
Hello,

we got a new server in our company. It run several services on several
XEN virtual machines (e.g. mail, webserver, yp). I want to know if it is
better to run bacula in its own XEN or directly on the hostsystem? This
server has enough hardware ressource for both.

I would recommend Dom0 if you are intimate with Xen and you keep your
DomU's on LVM. You can then manage everything from Dom0 and not bother
with installing Bacula everywhere and you can get snapshot backups of
every DomU. I've got a few "not quite enterprise" shell scripts if you
want a peek. :-)

Per.

Hi,

2007/3/5, Dominik Jonas <jonas < at > an...>:
we got a new server in our company. It run several services on several
XEN virtual machines (e.g. mail, webserver, yp). I want to know if it is
better to run bacula in its own XEN or directly on the hostsystem? This
server has enough hardware ressource for both.

The Xen documentation is quite clear about running services in dom0:
do NOT do it. There are reasons for that statement, mostly reasons based on
bad experiences following bad choices or as we say "dicke finger und
keine backups".

Xen allows you to export the fc- or scsi hba the tape is connected to
to the domU
that will use it.
From a disaster recovery point of view it is not desirable to have the
backups in a domU,
unless you're able to provision that domU to a ready state without
relying on backups,
i.e. bring up the domU on a 2nd dom0 if the dom0 #1 is broken.

If You can ensure that and have some xen experience, you could also
just run a bacula-sd
in dom0, that's not so much pain and/or risk. I've done this for some
time after settling my toyground into one larger box - but that was at
home, not for a company people rely on.

my main advice would be a different, non-virtualized host for the backups.

Good luck,
Florian