Nagios full copied reserve server

[Scott Sanders]

I was able to create a true failover (hot-spare) setup using Linux-HA and
DRBD. The two machines use a primary/secondary DRBD drive setup for
/usr/local/nagios, /var/spool/mqueue, and /var/spool/clientmqueue. Linux-HA
manages the virtual IP for nagios as well as bringing nagios and sendmail
services up and down during a failover. This works very well, and because
the mail spools are sync'ed not even unsent notifications are lost.

I believe there are some previous threads about this setup, but if not I'd
be happy to write up a HOW-TO.

-Scott

On 1/29/08, magic_rooter <magic.rooter at gmail.com> wrote:
>
> Hello everybody. I need to have nagios reserve server which will
> replace the main server when it dies. I installed nagios on another
> machine, copied all directory /usr/local/nagios and start reserve
> service Nagios.
> I have thound that statistics differs very much! Of course, nagios was
> installed in different time on each server. But when I copy status.dat
> file from the main server, availibility statistics on the reserve
> server became the same! But AFTER RESTART it returnes to  its previos
> state:(.
>
> So, I can't solve this problem, because I can't understand what files
> I need to copy in order to make  the full copy:(.
>
> I must mention that reserve server must not work all time. It has  to
> be turn on ONLY when main server dies. So, what about availibility
> statistics?
> How to make statistics on reserve server STRONGLY the same as on the
> main server?
>
> With the great respect to everybody, Kristine
> Linux System Administrator
>
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