Plesk SQL Server / MySQL / MariaDB service fails to start: GetDiskFreeSpace(C:\,...) failed - OS error number 5

Symptoms

• Plesk is not accessible with the error:

  PLESK_INFO: Type Zend_Db_Adapter_Exception
  Message SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it
  File Abstract.php
  Line 144

  or websites that use MySQL database fail to load.

• Plesk SQL Server / MySQL / MariaDB service fails to start. The following error messages appear in C:\Program Files (x86)\Plesk\Databases\MySQL\data\<hostname>.err:

  CONFIG_TEXT: [ERROR] InnoDB: GetDiskFreeSpace(C:\,...) failed - OS error number 5
  [ERROR] InnoDB: os_file_get_status() failed on '.\ibdata1'. Can't determine file permissions

Cause

Plesk SQL Server / MySQL / MariaDB system user does not have required file/folder permissions.

Resolution

Repair the disk permissions using Plesk Reconfigurator:

1. Connect to the Plesk server via RDP.

2. Start Plesk Reconfigurator at Windows Start > All Programs > Plesk.

3. In Plesk Reconfigurator, click Correct disk permissions.

   
   
   
   

4. Select C: drive (or the drive where MySQL databases are located) and click Set.

   
   
   
   

5. Wait for the process to complete.