Wipe data off removed hard drives

[Myka]

So I replaced 4 of my 5 bay DS1513 volumes with 8T drives from 3T drives, I left Vol I as a 3T drive since it doesn't host data. My question is in order to wipe my old 3T drives do I have to put them back in the diskstation? I bought a hard drive flat docking station, so I could hook up thru a USB drive & wipe them, but windows is not recognizing the disks at all, so I can't apply the diskwipe. Any recommendations on how to get my data cleared without having to load back in the disk station? I'm thinking deguassing, but don't wanted to ruin them. I'd like to sell them if possible. Any advice is welcome and thanks!

 

[fredbert]

Have you used diskpart from Windows cmd.exe? It's very important to be sure you are working on the right disk because you can completely trash your internal/boot disk if you select the wrong one.

How to use DiskPart to clean and format drive not working on Windows 10

If a drive is causing problems on Windows 10, it could be a logical issue that can be fixed with a few commands.

www.windowscentral.com

Steps 1 to 7 to make the disk available in Computer Management to apply a new file system. Or follow all steps to clean and format the disk.

Doing the above doesn't overwrite the actual data written to the tracks on the platters but only the structure that aids understanding what is where in the platters. After getting access to the disk you should then do a full overwrite of 3 or 7 times, and this takes ages but means you data will be almost impossible to recover.

 

[Telos]

You do not need to wipe drives to move them between Synology machines. Simply reformat them such that the partitioning information is rewritten. It can be done through Windows' Computer Management interface.

If for some reason you are unable to do that, use 'diskpart clean' to clear the partitions.

 

[fredbert]

@Telos "I'd like to sell them if possible"

 

[Telos]

"I'd like to sell them if possible"

In that case...

Windows: diskpart clean all
Linux/MacOS: dd (writing all zeroes)