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Failure And Error In The Middle Of Backup

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I have been succesfully running many backups to my Buffalo Terastation NAS device. All of a sudden all of my backups are failing from multiple computers. The backup partially completes and then stops with the below error message. I can succesfully run a backup to a hard drive on my computer so I am only getting the error on the NAS.


Log file:


+ Normal backup using CPG-Win7-64B at 12/10/2011 7:25 PM

To Backup Set CPG-Win7-64B...

- 12/10/2011 7:25:05 PM: Copying Local Disk (C:)

Additional error information for Disk Backup Set member "1-CPG-Win7-64B",

Can't write to file \\SPEEDYHD\Backup\CPG-Win7-64B\Retrospect\CPG-Win7-64B\1-CPG-Win7-64B\AA000099.rdb, error -1116 ( can't access network volume)

Trouble writing: "1-CPG-Win7-64B" (2693713920), error -116 ( volume doesn't exist)

Can't create session, error -1100 ( invalid handle)

12/10/2011 7:55:00 PM: Execution incomplete

Remaining: 2246 files, 6.0 GB

Completed: 101 files, 2.1 GB

Performance: 95.6 MB/minute

Duration: 00:30:08 (00:08:22 idle/loading/preparing)

Can't save Backup Set CPG-Win7-64B, error -1100 ( invalid handle)

Edited by sparky4460
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Frankly I have not been monitoring the network traffic. Remember I have been successfully using Retrospect for years backing up over a network. I recently changes to an NAS drive and again successfully ran many back-ups. The failures just started happening. But I am willing to look at the network traffic if you think it could be the root of the problem. What would you recommend to monitor the traffic and what would indicate a problem?

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