Errors on three Windows Server 2012 R2

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I had with QNAP-WebDAV the same errors as with QNAP-S3. In the meantime I managed a backup on all three servers. I used S3 for 200GB to 500GB over 10MBit-WAN on QNAP.

  1. I made the storage on QNAP empty.

  2. A backup is done (–snapshot-policy=Required), takes 2 to 4 days, at the end the error comes as above.

  3. I have entered the following parameters:

--no-backend-verification=true
--backup-test-samples=0
--concurrency-max-threads=1

4.Run repair, takes half an hour.

  1. Full backup performed, takes less than an hour. Successful.

Since then the backup works.

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