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This article explains how to configure Windows Server Backup to back up to an iSCSI LUN on a ReadyNAS OS 6 system.

Not what you're looking for? Return to the ReadyNAS Backup FAQ

This article applies to the following Windows Server operating systems:

  • Windows Server 2012 R2
  • Windows Server 2012
  • Windows Server 2008 R2
  • Windows Server 2008

Preparing the ReadyNAS

  • Create a LUN group
  • Configure the LUN group security
  • Create a LUN.
    • Our recommendations are to:
      • Create a Thick LUN
      • Do not enable Bit Rot Protection.
      • Disable snapshots.
      • Disable sync writes.
        • If only using this ReadyNAS to backup Windows Server, the size of the LUN can be as large as you'd like, but try not to exceed 85% of the total volume space. Failure to acknowledge this recommendation could cause fragmentation or other unintentional complications that could be unrecoverable.
  • Connect to the LUN

 

Setup Windows Server Backup

 

  1. On the Windows Server, go to Administrative Tools and open Windows Server Backup.
  2. In the Actions menu, click on Backup Schedule. This opens the Backup Schedule Wizard. Press Next:

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  3. Select Full server (recommended) or Custom depending on your requirements and press Next:

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  4. Specify the backup time and schedule as needed and press Next:

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  5. Select Backup to a hard disk that is dedicated for backups and press Next:

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  6. Click Show All Available Disks:

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  7. The iSCSI LUN on the ReadyNAS will be listed. Select it and press OK.

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  8. Click Next:

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  9. Confirm that you want to format and use the disk by clicking Yes:

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  10. At the confirmation screen, review the configuration and press Finish:

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  11. The iSCSI LUN will be formatted and prepared to accept backups:

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The backup is now successfully configured.

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Last Updated:07/08/2025 | Article ID: 28432

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