[Networker] Exchange 2007 backup fails ;urgent help required

Hi All,

I am using netwoker 7.5 and have installed networker module for exchange 2007.

when i try to backup exchange data from client side it failed with the 
following error

off 0 len 512 file #1 MSEXCH:/Information Store/First Storage Group/Mailbox 
Database
46782:nsrxchsv:    Backup file: D:\Exchsrvr\Mailbox\First Storage Group\Mailbox 
Database.edb
nsresesv(1593):Creating object MSEXCH:/Information Store/First Storage 
Group/Mailbox Database/Mailbox Database.edb  Size: 2808373248
39078:nsrxchsv:RPC error: RPC send operation failed.  A network connection 
could not be established with the host. (severity 4, number 3)
46784:nsrxchsv:nsresesv(1638): XBSA error 0x0003 returned while sending XBSA 
data.
38008:nsrxchsv:Internal system error, please see nsr\applogs\xbsa.messages on 
the client system for reason.
nsresesv(1715):Calling BSAEndData
off 512 len 75863575496 file #2 MSEXCH:/Information Store/First Storage 
Group/Mailbox Database/Mailbox Database.edb
savefile_fini failed
46832:nsrxchsv:nsresesv(1719): XBSA error 0x0003 returned while ending XBSA 
transaction.
38008:nsrxchsv:Internal system error, please see nsr\applogs\xbsa.messages on 
the client system for reason.
46779:nsrxchsv:Error saving file D for database Mailbox Database
nsresesv(1171): Calling BSAEndTxn
46774:nsrxchsv:The backup of First Storage Group failed; status is 0x00000003.
46767:nsrxchsv:Completed backup of First Storage Group  Status: 0x00000003
  The system cannot find the path specified.
svmain(319): Calling BSATerminate
46885:nsrxchsv:Backup operation finished with errors.  No savetime was sent.
43709:nsrxchsv:Stop time: Fri Jan 23 14:39:28 2009

Options:
  Server: khsol
  Client: KHADIMMAILDB01.khadims.com
  Save set name: None
  Pool: None
  Group: KHADIMMAILDB01
  Level: full
  Compress: False
  Temporary directory: C:\Program Files\Legato\nsr\tmp
  Operation type: Traditional
Backup completion time: Fri Jan 23 14:39:37 2009

This is the output of file XBSA.message file

XBSA-1.0.1 LNMs_2007.Build.294 7012 Fri Jan 23 14:39:27 2009  
_nwbsa_close_create_object_session: BSA_RC_ABORT_SYSTEM_ERROR System detected 
error due to savefile_fini() failure, typically caused by bad network hardware 
(NICs, routers, etc). Operation aborted

I went through the admin guide , in the remote access attribute on pg 48, it 
was mentioned for serverless backup,this attribute must include a proxy client 
hostname.

so i just mentioned the hostname, and the backup from client side through 
networker user completed successfully without any errors..

but now when i try to take backup from networker server, it fails with the same 
error.. the size for first storage group is 132 GB , the backup group runs 
properly till 112 GB , and then  it says backup operation aborted  

Can someone pl help ..

Thanks

Parul

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