You only need to install Data Protection for Exchange
and CDO MAPI on the Mailbox Servers. 

You do NOT need to install them on the CAS servers.

Also, you will need the latest Data Protection for
Exchange version (6.1.3.1) and you also need a 
hotfix from Microsoft. Read this technote:

   https://www-304.ibm.com/support/docview.wss?uid=swg21496387

Thanks,

Del

----------------------------------------------------

Del Hoobler
Tivoli Storage Manager Development
IBM Corporation



"ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu> wrote on 08/26/2011 
10:40:52 AM:

>> From: Yanick Quirion <Yanick.Quirion AT USHERBROOKE DOT CA>
>> To: ADSM-L AT vm.marist DOT edu
>> Date: 08/26/2011 10:43 AM
>> Subject: Using mailbox-level and item-level restoration with Exchange 
2010
>> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
>> 
>> Dear all,
>> 
>> I would like to know if somebody is using the mailbox-level and 
>> item-level restoration with Exchange 2010. On the install guide, they 
said:
>> 
>> “[…] the Client Access  Server Role must also be configured to run 
>> Mailbox Restore operation on Exchange Server 2010[..]”
>> 
>> My question are:
>>    1. Should I install TDP for Exchange on the CAS server as well?
>>    2. Should I install the Microsoft Exchange Server MAPI Client 
>> and Collaboration Data Objects 1.2.1 (MAPI) version 6.5.8147.0 (or 
>> later) on all Mailbox Server Role and Client Access Role?
>> 
>> If I understand well, The TDP for Exchange must be install only on 
>> the Mailbox Server Role. I don’t need it on CAS and HUB. I’m I right?
>> 
>> Thank you all for your help.
>> 
>> Best Regards,
>> 
>> Yanick Quirion
>> Technicien en Systèmes Ordinés  - Section Infrastructure des serveurs
>> Service des technologies de l’information (S.T.I.)
>> Université de Sherbrooke
>> Courriel: Yanick.Quirion AT USherbrooke DOT ca
>> Tél.: 819-821-8000 Poste: 62490
>> 
>>