A Qnap NAS has a drive with some bad sectors, I want to RMA it, but before just want to figure out how to prepare a drive? It’s part of a raid 5 setup of 4 drives unencrypted. So I want to remove it and wipe it. Got a Linux machine I can use, but never done this before.
What are common Linux tools to do that sensibly?
dd if=/dev/zero of=/dev/sdX bs=1M
This command is much faster. Instead of random bits, it just marks everything zero (dude). Is good enough.