Just to follow up with the group on this. Del was correct (as usual). The 
somewhat vague rc=400 return code: 

ACN5705W An error was encountered with Tivoli Storage Manager API 
initialization, rc = 400.
Examine the dsierror.log for more information or determine if the TSM API is 
installed properly.

... pointed to a bad entry in the TDPs dsm.opt file.  In this case it was an 
old "Largecombuffers no" option that we have on the previous TDP for exchange 
backups.

As part of the troubleshooting the support person pointed me to this link that 
has a better explanation of the TSM API return codes.

http://publib.boulder.ibm.com/infocenter/tsminfo/v6r2/topic/com.ibm.itsm.client.develop.doc/r_ret_codes_source.html


Ben

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Del Hoobler
Sent: Tuesday, May 17, 2011 9:00 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] TDP for Mail and Exchange 2010

Ben,

That message can sometimes mean you have a bad entry in the
DSM.OPT file or something else that keeps the TSM API
from loading correctly.

The most expedient way for you to get this resolved is
to open a PMR with IBM support. They can gather a
Data Protection for Exchange and TSM API trace
and find out what is going wrong pretty quickly.

Thanks,

Del

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

"ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu> wrote on 05/17/2011
10:38:28 AM:

>> From: Ben Bullock <BBullock AT BCIDAHO DOT COM>
>> To: ADSM-L AT vm.marist DOT edu
>> Date: 05/17/2011 10:43 AM
>> Subject: TDP for Mail and Exchange 2010
>> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
>>
>> Folks,
>>    I have a question about TDP for Mail. I have been doing it on
>> Exchange 2007 with the legacy backups for a long time with no
>> problems. We are migrating to Exchange 2010 and now you have to
>> back it up using VSS. I must say, this is a complicated procedure,
>> as I found other folks having issues while searching the ADSM-L
archives.
>>
>> Here is the documentation from Tivoli on how to set it up, but due
>> to the various options and iterations, it is lacking in specific
examples:
>> http://publib.boulder.ibm.com/infocenter/tsminfo/v6/topic/
>> com.ibm.itsm.mail.exc.doc/b_dp_mail_exc_guide_win.pdf
>>
>> I was wondering if anybody had a step-by-step procedure for their
>> environment they would like to share.
>>
>> This is the environment I am working in:
>> TSM server: AIX, TSM V6.2.1
>> Exchange client: Windows 2008 R2, SP1. Exchange 2010
>>    BA client v6.2.2 (64-bit), TDP for mail v6.1.3
>> Storage: Just a simple SAN. I don't want to link it with DS, SVC,
>> Netapp snapshots, etc. I just want to push a copy to TSM
>>
>> I can get the BA client working no problem, but after setting up
>> the TDP client and altering its dsm.opt and tdpexc.cfg file and
>> running the "grant proxynode" command on the TSM server, I still
>> get this error:
>>
>> ACN5705W An error was encountered with Tivoli Storage Manager API
>> initialization, rc = 400.
>> Examine the dsierror.log for more information or determine if the
>> TSM API is installed properly.
>>
>> I look at the dsierror.log file and it is not even being written
>> to. I have uninstalled and reinstalled the TDP client, but still
nothing.
>>
>> Any help would be appreciated.
>>
>> Ben
>>
>> [attachment "mg_info.txt" deleted by Del Hoobler/Endicott/IBM]

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