04-19-2012 07:23 PM
I am trying to assign 3 probes to a serverfarm ,is there any way the ACE checks all the 3 probes for each rservers configured ,
even if one probe fails ,can ACE mark the rserver down
serverfarm QI
predictor leastconnection
probe PROBE_HTTP
probe PROBE_HTTPS
probe PROBE_7000
rserver server1
inservice
rserver server2
inservice
Please let me know ,as even if one probe fails ,can ACE mark the rserver down,or for ACE to mark the server down ,do we need all the 3 probes to fail
I know if we configure multiple probe and say failover on all ,if all the probes fail,the ACE mark the server down,
Solved! Go to Solution.
04-20-2012 01:05 AM
Hi,
From the ACE Server Load Balancing Guide:
"By default, the real servers that you configure in a server farm inherit the probes that you configure directly on that server farm. Multiple probes that you configure on a server farm have an OR logic associated with them. If one of the probes configured on the server farm fails, all real servers configured in the server farm fail and enter the PROBE-FAILED state. You can also configure AND logic for server farm probes."
"To configure the real servers in a server farm to use AND logic with respect to multiple server farm probes, use the fail-on-all command in server farm host configuration mode. With AND logic, if one server farm probe fails, the real servers in the server farm remain in the OPERATIONAL state. If all the probes associated with the server farm fail, then all the real servers in that server farm fail and enter the PROBE-FAILED state. This command applies to all probe types. You can also configure AND logic for probes that you configure directly on real servers in a server farm."
HTH
Cathy
04-20-2012 01:05 AM
Hi,
From the ACE Server Load Balancing Guide:
"By default, the real servers that you configure in a server farm inherit the probes that you configure directly on that server farm. Multiple probes that you configure on a server farm have an OR logic associated with them. If one of the probes configured on the server farm fails, all real servers configured in the server farm fail and enter the PROBE-FAILED state. You can also configure AND logic for server farm probes."
"To configure the real servers in a server farm to use AND logic with respect to multiple server farm probes, use the fail-on-all command in server farm host configuration mode. With AND logic, if one server farm probe fails, the real servers in the server farm remain in the OPERATIONAL state. If all the probes associated with the server farm fail, then all the real servers in that server farm fail and enter the PROBE-FAILED state. This command applies to all probe types. You can also configure AND logic for probes that you configure directly on real servers in a server farm."
HTH
Cathy
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide