Samsung MagicianDC - O [-Over-Provision]

SSD DC 22
-O [--over-provision]
Set the SSD’s overprovision (= OP) area size to the given value.
Arguments:
-q [--query]: Displays OP information of the selected SSD.
-s [--set]: Sets the OP value either in MB or GB or % of total disk space.
-c [--clear]: Clears the current OP value on the last partition of the disk.
Used with:
--disk [or] -d
Usage:
magician --disk 1 --over-provision --query
magician --disk 1 --over-provision --set 1024MB
magician --disk 1 --over-provision --set 4GB
magician --disk 1 --over-provision --set 10%
magician --disk 1 --over-provision --set
magician --disk 1 --over-provision --clear
[or]
magician -d 1 -O -q
magician -d 1 -O -s 1024MB
magician -d 1 -O -s 4GB
magician -d 1 -O -s 10%
magician -d 1 -O -s
magician -d 1 -O -c
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Note: If no argument is given for --set option, the application will perform Over-Provisioning with default value, 10%. -O short
switch can also be used for ‟over-provision. Short switches for --query, --set and --clear are -q, -s and -c respectively.
The values (1024MB, 4GB and 10%) used above are for illustration purpose only.
Example: Setting partition, 100GB, 100GB, 280GB unallocated with 480GB device