Final error (-8 Not enough storage is available to process this command.)

Issue

When you attempt a backup of a protected machine, you receive the error message, "Final error (-8 Not enough storage is available to process this command.)"

Environment

  • Datto SIRIS
  • Datto ALTO

Cause

  • This error code is an official Microsoft System Error Code(external link), that means, "not enough memory."
  • There is not enough free space on the protected drive to run a backup.
  • For Windows Server 2008, the protected machine does not have Microsoft Hotfix KB976494(external link) installed.
  • Desktop heap allocation issues can also cause this error.

Solution

  • Check the available space of each protected volume. Datto recommends maintaining at least 30% free space per protected volume, with a minimum of 20% free space per protected volume at all times.

    Volume Utilization

    Status

    Comments

    0 – 70%

    Good

    Utilization is good.

    71 – 80%

    Warning

    Utilization is outside optimal limits. Monitor the volume growth and look at cleaning up unnecessary files and moving non-essential data to other storage.

    81 – 100%

    CRITICAL

    Volume is becoming critical. Snapshots will start to fail, disk queue lengths will increase. Create space.

  • For Windows Server 2008, install Microsoft Hotfix KB976494. You must reboot the protected machine after installing this hotfix.