06-29-2009 03:06 AM
A question raised at my side, if it is possible to setup a synchrone failover of the Device- and GUI-server in a NSM extended HA setup (4 physical servers, 2 sites). The idea is that when a failover occurs of one of the servers (device or GUi), the other server automatically fails over together with it. So both primary device- and GUI-server always reside on the same site. This to prevent that the communication between the device- and GUI-server runs over a WAN link. Is there a way to achieve this?
Thanks for your help.
06-29-2009 09:06 AM
By default that is not possible. It would be a manual operation.
You will need to setup some scripts that would see which server is active and based on that you will need to shutdown the processes.
GUI1 & Dev 1 are Primary
GUI 2 & Dev 2 are Standby
GUI 1 goes down, then the GUI 2 comes up, Dev 1 connects to GUI 1.
At this stage, the script checks and sees this and shutsdown Dev1 such that Dev 2 becomes Active.