--hdd_speed=<speed>{kb|p}
The speed of writing the data being backed up to a hard disk.
This parameter is used if the backup destination (the --loc parameter value) is an internal (fixed) hard disk of the machine being backed up. For other locations, the parameter is ignored.
<speed> should be a positive number. If the measurement unit is kb, the speed is measured in kilobytes per second. If the measurement unit is p or is not specified, the speed is measured in the percentage of the maximum I/O speed of the destination hard disk.
If the parameter is not specified, the hard disk usage is not limited (as if you typed --hdd_speed=100p).
Examples:
--hdd_speed=500kb – the data writing speed will be 500 kilobytes per second
--hdd_speed=50p or --hdd_speed=50 – the data writing speed will be 50% of the maximum speed.