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Old 08-11-2013, 04:59 AM   #2
BlackBerry Extraordinaire
Join Date: Mar 2006
Model: 9700
Carrier: t-mobile Germany
Posts: 1,381
Default Re: BES5 to 10 in a small environment, frustrations...

If you look into the bes compatibility matrix, you see that running a BES4.1 is very unsupported on a Server 2008R2x64. Since you now plan to decomission the SBS2003, and, finally, there will no use for the BES4, why not use the grace period of 21 days which microsoft allows, to run both old an new SBS boxes in parallel ?

I still recommend to go for a virtualized environment consisting of a Server 2008R2 Standard as Hypervisor + SBS2011, and a second instance of 2008R2 for the BES10, or Server 2012/2008R2 as Hypervisor + SBS2003 plus a second instance of 2008R2 for the BES.
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