Sandisk Extreme 64GB - Slower write speeds after system format

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Just wanted to let you guys know that secure delete via “hdparm” worked fine for me on Linux.

  1. hdparm --user-master u --security-set-pass Nine /dev/X   <- Enable drive security
  2. hdparm -I /dev/X   <- Check if security is enabled
  3. hdparm --security-erase Nine /dev/X   <- Worked for me without --user-master u,  this will wipe all data in less than 30 sec
  4. hdparm -I /dev/X   <- Verify that security is disabled

dev/X = drive name, for example /dev/sdg

My speeds went from 10MB / sec to over 200MB / sec again :slight_smile:

Best regards,

IT-Technik Klimt