Unable to change subscription resources: Unable to allocate the required amount of resources

Symptoms

• Unable to synchronize a subscription of a reseller with the service plan

• It is not possible to adjust a limit for a subscription or create a backup in Plesk > Domains > example.com > Backup Manager. One of the following messages is shown in Plesk:

  PLESK_ERROR: Unable to allocate the required amount of resources (15 GB Disk space). Only 12 GB Disk space are available.

  ---

  PLESK_ERROR: Unable to set the required resource usage limit (15 GB Disk space) because the new value is less than the amount of resources reserved for your customers or used by yourself (12G Disk space)

  ---

  PLESK_ERROR: Unable to allocate the required amount of resources (2 MySQL databases). Only 0 MySQL databases are available.

• Migration of a subscription throws similar warnings in Tools & Settigns > Migration and Transfer Manager > 203.0.113.2 > Overview tab > example.com [Details]:

  PLESK_WARN: Plesk restore report problem:
  Execution of "C:\Program Files (x86)\Plesk\bin\domain_pref.exe" --update example.com -disk_space_soft -1 -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 '-1': Unable to allocate the required amount of resources (Unlimited Disk space). Only 90 GB Disk space are available.

Cause

Reseller is lacking resources.

Resellers have their own resources they can sell, and for this particular reseller overselling is not allowed, therefore it is not possible to increase the disk limit for his subscription.

Resolution

1. Log into Plesk

2. Go to Resellers > John Doe

3. Click the Customize button:

   

4. Increase all the necessary limits (i.e. disk space, number of databases, etc.)