Simple Command to Wipe Out Disks before You Return Dedicated Server

One of the dedicated servers expires tomorrow. Since it is dedicated server, it is better to wipe out the disks before you return them. To prevent data recovery intentionally, you can do this:

shred -vzn 3 /dev/sda

Replace /dev/sda with all the hard drivers on the server.

• -v → verbose progress
• -z → add a final pass with zeros
• -n 3 → overwrite 3 times (you can increase for extra paranoia)

Alternatively you can use dd (simpler, one-pass overwrite with zeros)

dd if=/dev/zero of=/dev/sda bs=1M status=progress

This is the backup node:

And I am destroying /dev/sda at the same time:

Still running:

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