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W2K8 R2 Server Hangs during windows Backup

I have a W2K8 R2 server that has been running for about 2 years with no issues.  Last week, Windows Server backup began hanging the server so that only a power cycle of server will get it working again.  I have tried changing the backup destination, the cable to the external drive and the interface to it on the server.  This is a DC with Exchange.  Customer decided to add Exchange after they said they didn't need.  There are no logs written to help explain why the server hangs.  Any help would be greatly appreciated.
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denisonf
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denisonf
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Haresh NikumbhSr. Tech leadCommented:
which backup application you are using?

run check disk and verify if any corruption is there on the server. check during backup which process is taking maximum cup load.
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rindiCommented:
First check the state of the file-system and repair any errors it may have, on the internal disks and the external ones you are using for the backups (chkdsk driveletter: /f /r). This will require a reboot to finish, and it can take a long time, depending on the size of the disks and the number/severity of errors found, so do it at "off" hours.

After that, scan the system for malware, as that can often cause crashes/hangs when backing up. Also make sure that antivirus scans don't coincide with your backup times.
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denisonfAuthor Commented:
Takecoffe, Windows Server backup.  Already rand Check disk and updated all drive firmware for controller and disks.
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denisonfAuthor Commented:
Rinidi, Thank you, but these were the first things I checked.  All disks are clean and no malware on server
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denisonfAuthor Commented:
Looks like it may have been the Lifecylce controller had a bad image that was causing some issues.
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denisonfAuthor Commented:
Worked with Vendor to determine issues.
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