Backup restoration warning in Plesk: An error occurred while updating domain settings: Cannot set limit ‘disk_space_soft’ value to ’80’

Symptoms

• Restore of a backup in Plesk is completed but the following warning is displayed:

  PLESK_WARN: WARNING: (Restore domain object ‘example.com’)

  Execution of /usr/local/psa/admin/plib/api-cli/domain_pref.php
  –update example.com -disk_space_soft 80B -ignore-nonexistent-options failed with return code 1.
  Stderr is
  An error occurred while updating domain settings: Cannot set limit ‘disk_space_soft’ value to ’80’

• The same warning message may appear during migration

Cause

This is Plesk bug #PPPM-10643 which will be fixed in future Plesk updates.

Resolution

This warning can be safely ignored. As a workaround, update the disk_space_soft value:

1. Log in to Plesk

2. Go to Plesk > Service Plan > ServicePlanName > Resources > Define the resources provided with the plan > set value in Notify when disk space usage reaches: