My favorite method of destroying old hard drives is take them completely apart and put magnets on the platters and scratching them up. I let my kids make stuff out of them. I decided for fun this time. I will show you each hard drive as I take it apart. How do they differ. I have two SAS drives that are server grade. I have three SATA drives. This will take some time to do. So stay tuned.
Platter size difference. Top: SAS Seagate Savvio 10K.6 146GB: slightly smaller than Cheetah Middle: SAS Seagate Cheetah 15K.7 300GB Bottom: SATA and IDE drives
Removing the covers
SAS Seagate Cheetah 15K.7 300GB 3.5″. : Removing the cover was 7 outside short screws and 4 screws under the label. Two of them were long.
SAS Seagate Savvio 10K.6 146GB 2.5″: Removing the cover was 6 outside short screws and 2 screws under the label.
SATA Seagate Barracuda 7.2K.10 750GB: Removing the cover was 7 outside short screws and only 1 screw under the label.
IDE Seagate Barracuda 7.2K.10 500GB: Removing the cover was 7 outside short screws and only 1 screw under the label.
SATA Seagate Barracuda 7.2K.11 500GB: Removing the cover was 7 outside short screws and only 1 screw under the label.
First look inside each drive
Bottom Control Board
SAS Seagate Cheetah 15K.7 300GB
2 platters 6 screws to remove the center ring bottom screw to remove head 4 screws for the horse shoe spacer
SAS Seagate Savvio 10K.6 146GB
2 platters 4 screws on center ring I don’t have a small enough torx to remove the head 4 screws for the horse shoe spacer
SATA Seagate Barracuda 7.2K.10 750GB
4 platters 6 screws on center ring and 1 screw for the top of the magnet 4 screws for the horse shoe spacer
SATA Seagate Barracuda 7.2K.10 500GB
3 platters 6 screws on center ring and 1 screw for the top of the magnet 3 screws for the horse shoe spacer
SATA Seagate Barracuda 7.2K.11 500GB
2 platters 6 screws on center ring and 1 screw for the top of the magnet 4 screws for the horse shoe spacer