[ADVICES]Completely wipe previous drives

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Earphone2212
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Joined: Mon Jan 30, 2023 12:25 am

[ADVICES]Completely wipe previous drives

Post by Earphone2212 »

Hello, i've just upgraded my QNAP with two new drives with higher capacity and i would sell or give away my previous drives. My config is a 2-bay with 2 drives in RAID 1.
I never done it before so i got some questions:

- The encryption key i setup at the beginning for previous drives, it's related to NAS device itself and not to disks ? I'm asking this because when i swap the drives it didn't asks me any key.

- Or, when i'll attach the old drives to a PC through a USB/SATA adapter the encryption key will be asked? (And the current encryption key is actually propagated to the new installed drives as well without any user action ?)

- Which is the best way to safely format previous drives? I think they are standard ext4 disks, so plugging them on a Linux machine and wipe them from whatever disk management software should work.

Any advice? Am i missing something?

Thanks !
dosborne
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Posts: 1723
Joined: Tue May 29, 2018 3:02 am

Re: [ADVICES]Completely wipe previous drives

Post by dosborne »

I've never used encryption, so will skip that part.

In general, simply removing any existing partitions (using diskpart and a USB dock) is a simple way to protect your data.

It depends on how secure you want to be. Pick from these and many more options.
- Format the drives using windows (a differrent OS)
- Delete the partition table
- Run a secure erase application
- Run an electromagnet across the drive (kill it)
- drill a hole in the platter
- put it in an industrial shredder.

Consider keeping the drives for backup or data recovery or additional storage down the road.
QNAP TS-563-16G 5x10TB Seagate Ironwolf HDD Raid-5 NIC: 2x1GB 1x10GbE
QNAP TS-231P-US 2x18TB Seagate Exos HDD Raid-1
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