

hdparm wouldn’t let me run the security-erase or security-erase-enhanced commands. It was indicating an IO failure. I thought maybe that was due to me not giving the drive a file system so I went back to Disks and gave it one, but still no luck. When I give it a file system the drive mounts though, so no actual hardware issues that I can see.
I found a thread on another site about using dd to remove the last 1-10MB of a RAID disk in order to make their RAID appliance see the drives as unconfigured. That’s basically what I’m trying to do here so I followed those instructions but this Mediasonic bay is still not coming to life with the old drives. I might be at the point of sending it back and looking for something else.
Just for completeness, the command used to wipe the end of the drive is as follows where you specify the amount to wipe using the “mb” variable and you change /dev/sdX to the correct drive. From a thread on Stack Exchange.
disk=/dev/sdX && mb=10 && dd if=/dev/zero of=$disk bs=512 count=$(( 2048 * $mb )) seek=$(( $(blockdev --getsz $disk) - 2048 * $mb ))
Thanks, this looked really promising but didn’t work for me. lvremove said it couldn’t find the volume group and dmraid said that I have an unsupported sector size and it didn’t see any raid disks at me drive location.
I’m currently using dd to write zeros to the drives. I’m not sure how long that will take me on this old USB 2.0 dock.