Backup 100% CPU

[eugenevdm]

Our Plesk Windows 8.6 backup stopped working 6 months ago. So for alternative we use mirroring. But I really want to sort our the Plesk backup.

The problem is it reaches 100% CPU during the process. I have attached the log file at the point where it reaches 100% CPU:

Start: Back up MS-SQL database PMO
Done: Back up MS-SQL database PMO
Warning: psabackup.InformationalException: Unable to find parent domain for database 'PMO'
Done: Save 'MSSQL' database 'PMO'
Start: Save 'MYSQL' database 'stel_'
Start: Back up MySQL database stel_
Exec 'C:\Program Files\SWsoft\Plesk\MySQL\bin\mysqldump' '-Q -hlocalhost -uadmin -pxxxxx -P3306 stel_ > "C:\Program Files\SWsoft\Plesk\PrivateTemp\tmp49336.tmp"'
Done: Back up MySQL database stel_
Warning: psabackup.InformationalException: Unable to find parent domain for database 'stel_'
Done: Save 'MYSQL' database 'stel_'
Done: Saving...
Start: Starting Plesk control panel.
Done: Starting Plesk control panel.
Start: Starting services of domains
Done: Starting services of domains
psabackup.ProcessAbortedException: Backup cancelled
at dump.Progress.psabackup.ITaskProgress.addCost(UInt64 cost)
at psabackup.CompressFileTask..ctor(String _arcName, String _fileName, ITaskProgress _prog)
at psabackup.DumpEnv.addFileToDump(XmlElement parentElement, String arcName, String fileName, String tagName, Boolean realFile)
at psabackup.logo.onPreDumpOperation(XMLRow row, DumpEnv env, DumpOperation operation)
at psabackup.DumpEnv.XMLRow.onSaved(DumpEnv env)
at psabackup.DumpEnv.dump()
at psabackup.DumpEnv.start()
at dump.Progress.DumpProc()

As you can see in the above example I have cancelled the backup because I cannot have that server run at 100% utilization for very long, clients are breathing down my neck.