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Cas array problems
Hello!
We have 4 Cas servers in a Casaray that we are load blancing using our F5. We did the configuration using the Iapp template. Now when we done some testing it seems like it does not work as expected.
I can connect to the VIP using outlook. But when I disable the rpc access service on the CAS server that I know I'm connect to I see that Outlook starts to display "trying to reconnect", but it only stays in that state for a long time before I get the disconnected message. If I close outlook and restart it I get the same error message. It never connects to another cas server. When I start the service again on the CAS server Outlook reconnects.
We have a static port for rpc mapi and I can see that the node is down for the service.
What is the expected result when we disable the service in exchange?
Regards
- mikeshimkus_111Historic F5 Accounthi Prohead,
- Prohead_73562NimbostratusHi Mike!
- mikeshimkus_111Historic F5 AccountIs the port 135 pool member for the same server being marked down as well?
- mikeshimkus_111Historic F5 AccountIs the port 135 pool member for the same server being marked down as well?
- Prohead_73562NimbostratusNo when i disable the rpc Mapi port only the virtual server for this is affected. The rpc virtual server for port 135 is still online.
- mikeshimkus_111Historic F5 AccountCheck pages 76-77 in the iApp deployment guide: http://www.f5.com/pdf/deployment-guides/microsoft-exchange2010-iapp-dg.pdf
- Prohead_73562NimbostratusThanks! Reading the manual did the trick :) When we created the additional monitors the outlook clients moved to another server in the array. With the defaut value it can take up to 1.5 minutes before the server is marked as down. Is the recommendation to keep the default values or changing them to a smaller value for faster failovers?
- mikeshimkus_111Historic F5 AccountYou can certainly decrease the monitor timeout without causing problems, it just means you'll see more monitor traffic in packet captures which can add noise when you're troubleshooting.
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