I had a problem similar to this and it turned out to be a bad gbic on my
fiber switch.  

-----Original Message-----
From: lenin [mailto:networker-forum AT BACKUPCENTRAL DOT COM] 
Sent: Wednesday, December 05, 2007 1:57 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Backing up group NAS stops on 50%

in the details screen it shows waiting for client and in the fa8iled
field in find following information:


savegrp: suppressed 3 lines of verbose output
nsrdsa_save: Performing Immediate save
nsrndmp_save: NDMP Service Error: Medium error
nsrndmp_save: NDMP Service Warning: Write failed on archive volume 1
nsrndmp_save: NDMP Service Log: server_archive: emctar vol 1, 15966
files, 0 bytes read, 50498764800 bytes written

nsrndmp_save: Data server halted: Error during the backup.
nsrdsa_save : Aborted
nsrndmp_save: Save session closed with NW server successfully

nsrndmp_2fh: interrupted, exiting the File History merging...

   NetWorker Management Console version 3.2.3.Build.11

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