[Asterisk-Users] High(er) availability

[E. Versaevel]

>On Tue, 2004-12-07 at 10:54 +0100, E. Versaevel wrote:
>> Hello,
>> 
>> If one would like to build a redundant Asterisk setup, would it be
>possible
>> to exchange the locationdb for the SIP  users between then?
>
>Basically I would start with building redundancy in the the primary
>server, e.g. a ton of fans so one can break down without frying the box,
>redundant hot swappable power supplies, hot swappable disks in RAID1 or
>something like that. That will reduce the chance of the primary server
>going down due to hardware problems.

That would be logical, also at least two ups (1 for each powersupply)

>Interesting problem as you need to be able to preserve state across
>multiple servers. Did you look at that realtime app that's part of CVS
> (maybe asterisk-addons)? If it stores the registration state of the
>phones in a DB then both servers should have no problem being aware of
>all regs if one of them fails. 
Haven't looked into that, I believe that's for realtime reading of the
config files (which isn't realy an issue, just rsync em)

>Question is how do you make the backup
>server's Asterisk listen on the newly assigned IP of the primary server?
>Prolly a sip reload would solve that. Wouldn't SER be a better option?

I'm thinking of giving the backup ser an alias the same as the primary, but
it should not respond to ARP request (so no packets get there), in case of a
failure it should start responding to ARP.
SER isn't an option, I need a PABX, not a SIP Proxy.

>Which app do you use for monitoring the primary box and if it fails
>taking over the IP address by the backup one? I haven't found a suitable
> (active-active) app so far.
Thinking of using heartbeat or something.

>Regards,
>Patrick

Regards,

E. Versavel