CSS 8.10 Active Standby Service

[metro.gmarsh]

Is there a way to create a content rule that absolutely always prefered one service, and then in the event of a failure, would forward requests to the other service attached to the same content rule?

[skumar1969]

Yes you can using 'sorry' servers.

The concept of Sorry servers is to provide backup when the normal or regular servers are down. While any of the normal servers are operational the Sorry servers are not part of the load balancing mechanism. When all normal servers fail the primarySorryServer will handle all flows from the CSS until any of the regular servers come up. At this time the secondarySorryServer is not getting any flows. If all normal servers go down and the primarySorryServer also goes down the secondarySorryServer will receive any HTTP requests and flows.

The following is an example of a rule that contains sorry services:

Content rule1

vip address 192.168.1.100

protocol tcp

port 80

url ?/*?

add service server1

add service server2

primarySorryServer server3

secondarySorryServer server4

active

Hope this would help you.

thanks