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New Contributor
Posts: 4
Registered: ‎05-31-2013
My Device: Q10

BES 10 Accounts Disconnect on Exchange DAG Failover

[ Edited ]

Hi All

 

We currently run BES 5 and are evaluating BES 10. All users connected to BES 5 - when an Exchange 2010 database fails over to another mailbox server within the DAG in another site - continue to work fine.

 

However, for the few test users connected to BES 10 on Q10 devices, when Exchange databases failover to a mailbox server in another site, these accounts get disconnected and can only get connected again when the database is failed back to a mailbox server in the the original site. 

 

This only happens to accounts connected to BES 10 - any account connected to BES 5 does not have this problem. I've looked over the BES 10 config and can't see anything amiss. There is scant info on the web.

 

I just wonder whether anyone out there has had simlar problems with BES 10 & Exchange 2010 when DR testing or testing continuous BES services when Exchange databases failover to a mailbox server in another site.

 

Many thanks.

Guru III
Posts: 31,128
Registered: ‎06-25-2008
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Re: BES 10 Accounts Disconnect on Exchange DAG Failover

what did you use for your email profile that was assigned to users?

 

 

 




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New Contributor
Posts: 4
Registered: ‎05-31-2013
My Device: Q10

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

The primary site cas array.

Forums Advisor I
Posts: 652
Registered: ‎05-23-2008
My Device: BB10 and WiFi PB

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

And the other site has another name? If so that is the issue.
Either you assign manually a different Email Profile to your users after the Exchange failover or you configure your DNS/Loadbalancer so that there is only one name for both sites for the BES.
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New Contributor
Posts: 4
Registered: ‎05-31-2013
My Device: Q10

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

Oliwer, thanks for your reply. The idea here is not to be re-assigning BES email profiles manually when Exchange databases failover. Currently the production site Exchange CAS array is configured not to redirect client traffic to DR in the case where databases failover to that site. I just cannot see a way to implement this for BES. I cannot have one name for both sites without a major redesign of the AD. Where I'm scratching my head is that this is not an issue for BES 5 clients only BES 10.

Forums Advisor I
Posts: 652
Registered: ‎05-23-2008
My Device: BB10 and WiFi PB

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

Cause BES5 used MAPI and BES10 uses ActiveSync. ActiveSync is getting the server name by a manual configuration (in BES10 case via the profiles config) and MAPI gets it via autodiscover.
Not sure if this will work but whats about an addition dns name for your two locations (a.k.a. Round Robin) and using that for the profile on the BES?
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New Contributor
Posts: 4
Registered: ‎05-31-2013
My Device: Q10

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

Thanks for your suggestion Oliwer - it was appreciated - and it would be interesting still to see if that would work. But for expediencies sake, eventually removing the External URL from ActiveSync config on the DR site CAS server had the desired result. Cheers.

New Member
Posts: 1
Registered: ‎08-30-2013
My Device: Z10 / Q10

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

You can always add an entry on your BES server's loca host file, and control the IP address behind your CASARRAY. This way you can redirect your BES to either site's CASARRAY.
Contributor
Posts: 13
Registered: ‎06-27-2013
My Device: Blackberry Z10

Re: BES 10 Accounts Disconnect on Exchange DAG Failover

We do the same as emujica, and it works fine in our DR scenario, just change the host file if you lose your primary CAS.