I have an exchange 2010 server whose backup failed with the following:


NetWorker savegroup: (alert) Exchange 2010 NMM Mail4 completed, Total 1 
client(s), 1 Failed. Please see group completion details for more information.



Failed: mail4



Start time:   Fri Jul 20 16:58:33 2012

End time:     Fri Jul 20 17:02:10 2012





--- Unsuccessful Save Sets ---



2010 NMM Mail4" Snapshot Policy: "Serverless Backup" Snapshots Per Day: "1"  
Retain: "0" Backup Snapshots: "All" Level: "full".

Failed to initialize PowerShell session, retrying to initialize Powershell 
session using credentials...

39076:nsrsnap_vss_save: SYSTEM warning: DNS lookup failed for chs-exvs2: The 
requested name is valid, but no data of the requested type was found.

39076:nsrsnap_vss_save: SYSTEM warning: DNS lookup failed for chs-exvs1: The 
requested name is valid, but no data of the requested type was found.

39076:nsrsnap_vss_save: SYSTEM warning: DNS lookup failed for 
file03.conemaugh.org: The requested name is valid, but no data of the requested 
type was found.

39076:nsrsnap_vss_save: SYSTEM warning: DNS lookup failed for file03: The 
requested name is valid, but no data of the requested type was found.

47363:nsrsnap_vss_save: nsrpsd service is running on MAIL4.CONEMAUGH.ORG.

NMM ... Using client name MAIL4, the version of the Exchange server is Exchange 
2010.

82624:nsrsnap_vss_save:Save set name APPLICATIONS:\Microsoft Exchange 2010 is 
valid.

63335:nsrsnap_vss_save:NMM backup failed to complete successfully.

Internal error.

68151 1342817964 2 0 0 10168 10672 0 mail4.conemaugh.org nsrsnap_vss_save 39 
nsrsnap_vss_save: Exiting with failure. 0

rning: DNS lookup failed for chs-exvs2: The requested name is valid, but no 
data of the requested type wa



--- Successful Save Sets ---



* mail4:Probe savefs mail4: succeeded.

  legato: index:chs-dag.conemaugh.org level=full,   42 MB 00:02:33   1227 files


The backup worked correctly for weeks until last night.  Absolutely no changes 
were made to either Networker configs or NMM or Exchange.

The problem with this is that the host names mentioned in the error are long 
dead servers.  They haven't been running in over a year.

I have tried the following:


1.    Deleting the NSR peer information on both NW server and the Mail4 client.

2.    Stopping networker services on both the client and the NW server, 
deleting the nsr/tmp and nsr/res/nsrladb folders, then restarting the services.

3.    Uninstalling NMM completely and reinstalling it

Any ideas?

Thank you
Phil

Phil Myers
Network Administrator
Management Information Systems
pmyers2 AT conemaugh DOT org<mailto:youremail AT conemaugh DOT org>
O: (814) 534-1559
F: (814) 534-1383

Conemaugh Health System
1086 Franklin Street, Johnstown, PA 15905-4398
www.conemaugh.org<http://www.conemaugh.org>

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