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I have previously blogged about how to back-up home systems to commercial standards. A useful tool for the home user is Veeam Agent for Windows Free. It allows you to make a recovery disk and system image and has a very reliable restore feature.

In the small office/home (SoHo) environment the back-up target will typically be a Unix NAS with RAID1. To avoid authentication issues and errors like,

Error: Shared memory connection was closed. Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}.

You must ensure that ALL access from the computer being backed up to the NAS uses the same user identity on the NAS.

This will not work,

  • User accesses NAS as “James”
  • Veeam Agent for Windows accesses NAS as “Veeam”
  • FileHistory accesses NAS as “BatchJobs”

because the SMB protocol only allows a single security token. In this situation you will have intermittent failures with the error above.

This will work,

  • User accesses NAS as “Computer1”
  • Veeam Agent for Windows accesses NAS as “Computer1”
  • FileHistory accesses NAS as “Computer1”

A suitable directory structure on the NAS is

nas-file-structure

Each Computer has its own account on the NAS which is used for all backup and restore jobs including FileHistory. We cannot allow Windows Users or services to have individual accounts on the NAS.

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