Re: "Low level format"
"It is not something done on modern drives"
Let me introduce you to the concept of "ATA secure erase"
it goes like this:
# hdparm --user-master u --security-set-pass Eins /dev/sdg
security_password: "Eins"
/dev/sdg:
Issuing SECURITY_SET_PASS command, password="Eins", user=user, mode=high
# time hdparm --user-master u --security-erase Eins /dev/sdg
security_password: "Eins"
/dev/sdg:
Issuing SECURITY_ERASE command, password="Eins", user=user
(some time later.....)
Done
This even scrubs the spare sectors