I had a similar issue resolved recently by EMC support.

The logs were of no help.

The fix was to put only the hostname on the Backup command on the client 
resource instead of the fully qualified host name.

i.e. nsrxchsv -c hostname
and not: nsrxchsv -c hostname.domainname.local

Other questions for you:
Is this a clustered environment?
Do you have a Domain account with access to your Exchange stores in the Access 
fields of the client resource?
Have you been through all the dns checks on both the client and the server?  
i.e. nslookup forward and backward of both hostname and fully qualified names?

--Shawn


-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of Sobey, Richard A
Sent: Thursday, August 28, 2008 3:42 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Exchange 2007, Windows Server 2008, problems backing up

Dear all



I'm new to the list and the archives didn't really throw up anything
meaningful for me.  I am not the NSR administrator, but a slightly
concerned Exchange Admin working with my backups team to get this
sorted. Please bear with me!



First, is anyone here performing backups of their Exchange 2007 servers
hosted on Windows Server 2008? Using this combination, I can run backups
manually from the Exchange server, but from the NSR end it's
consistently failing.  The Exchange module is, as far as we all know,
properly licensed, and we have no issues with our existing Exchange
2003/Server 2003 servers.



Second, the small amount of logs generated thus far are unreadable.
Example of the beginning of a backup:



43708 1219745286 1 0 0 5588 5664 0 <hostname> nsrxchsv 14 Start time: %s
1 35 25 Tue Aug 26 11:08:06 2008



What does all this mean? Since the files have a .RAW extension, I think
I'll be needing some sort of parser. What am I missing?



Thanks for all and any help!



Regards



Richard




To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
networker-request AT listserv.temple DOT edu if you have any problems with this 
list. You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER

To sign off this list, send email to listserv AT listserv.temple DOT edu and 
type "signoff networker" in the body of the email. Please write to 
networker-request AT listserv.temple DOT edu if you have any problems with this 
list. You can access the archives at 
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER