OpenSER and Redundancy

Hi,

is anyone using openser in a redundancy enviroment? i'm planning to use
two sunfire with a running openser on each.

both openser get the same ip adress. on a cisco switch i can switch
between too servers via hsrp. so i have a running openser on the expensive
sunfire with redundant disk-drives and power supply. on the other cheap
sunfire runs the backup client on standby. the backup server checks (for
example via sipsak) the availability of the main server every second.

the user-locations are written into a mysql table.

so if server1 fails, server2 can recognize it in a second and can switch
over.
so only some transaction, which were processed at the moment of the
failure will lost.

what do you think. could this work? anyone has other ideas?

bye, martin