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gradyvogt -> Questions after setting up DAG (16.Feb.2010 1:33:07 PM)
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BIG thanks to Henrik for his write up on DAG.
I have DAG working perfect in my lab with 2 ex, 1 dc and 1 witness.
Now I also read the post on RCP server arrays for Outlook.
Help with my desigin.
1 - Full mesh WAN
2- DC's in each location
3- Server in each location each with 1 active and 2 passive databases. Roles per server HUB/CAS/MBX
4- This means that each client can access the local server for their site using the CAS on the mailbox server
5-still have a single point for OWA/Active-sync/Auto discover going to the main site.
6-witness server in the main site
During failover i just activate the database on aonther server and client simply move to that server even if its remote..
I assume external Outlook Anywhere/OWA/ActiveSync keep going as normal?
am I missing anything obvious?
** Part 2 **
Ok, so I am doing some testing in a single site with only 2 total exchagne servers. Each server has all 3 roles, CAS/HUB/MBX. When fail my server the other server properly mounts the data base, however OL2010 does not connect to it. I assumed with a CAS server on the other box it would? Will it even work with a 2 node DAG automatically? Or am I going to require a seperate CAS/hub server? if that is the case then really I should have 4 servers? WNLB on the CAS/HUB and only MBX on the DAG based server.. I know MS wantes it that way but not many places can afford more than 2 Exchange servers.
I also noticed my SEND connectors did not work, I created a 2nd one and gave it a cost of 2 for the * domain any hints? I would prefer not to do ANY thingduring failover.
So can it be done properly with only 2 servers? DAG Fail and auto client change?
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