HDD disk use after reboot , 100% for hours

Hi , i am new to the forum , operator for 3/4 months

I would like to know how it is working exactly , because after each reboot (pretty fast but sometimes necessary on the computer that run storj) (windows update , restart to flush the ram , and so on) the HDD where my STORJ directory is , get hammered like crazy for hours and hours.

is it really necessary ?
can it be disabled ?
is it doing a checksum on every single files of the node ?


Check out it this helps.