11-10-2012 04:28 PM
We are running BES 5.0.3 and Exchange 2010. We have four AD sites
CAS array: Lon-CASArray
CAS array: Par-CASArray
CAS array: Manc-CASArray
CAS Array: Glas-CASArray
We have BES servers in each data centre, and also mailbox servers. In terms of DAG, we have one dag stretched between London and Paris, and one between Manchester and Glasgow. We run Active/Active from a site perspective, although can fail over all DB's to the alternate site if needed (e.g. for DAG1, half the DB's are active in London and the other half in Paris normally, but we can activate all DB's in Paris or London if need be).
The Blackberry service account is located on a DB named DB0001 which is normally active in London. Although we try to match BES servers to Exchange servers, each BES generally holds users from all four sites (the network latency between the four sites is pretty good so this causes no problems).
What I'm not sure is how BES accesses user mailboxes. If I look at the MAGT logs, I can see that each MAGT seems to connect to a unique CAS (e.g. MAGT1 to London CAS, MAGT 2 to Paris CAS, MAGT 3 to Manchester etc). Is it the case that the BES connects to the user mailboxes directly and the service account is only used for authentication? Or does it connect to the service account and this is somehow proxied to the user mailbox?
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11-12-2012 09:22 AM
this might enlighten you some
What is the BESAdmin service account?