[asterisk-users] Redundancy / Failover

[Noah Miller]

Hi Norman -

> On 7/18/07, Norman Franke <Norman at myasd.com> wrote:
> > I've been evaluating Asterisk for a while, and things seem to be
> > going very well. The issue of redundancy and automatic fail-over is
> > now on my mind. I searched the archives and googled for solutions,
> > but didn't really come up with much.

To add to what Edgar said, yes, use linux-ha.  It works nicely in
combination with DRBD.  DRBD uses a dedicated network interface on
each box with a crossover cable between the two.  It does a block
level copy of the entire filesystem, so you have two machines that are
identical.  The you use the linux-ha heartbeat to monitor the OS and
asterisk.  If anything goes wrong, it can fail over to the second
machine.

This is pretty easy to set up with Analog lines.  With PRI's you'd
need the fonebridge or the FSV-4PFS from http://www.failsafevoip.com


- Noah