WD 1TB External Harddrive showing as 2TB but showing 1TB in Bios

bjkill

Honorable
May 23, 2012
133
0
10,690
Hi I have a WD black 1T hard drive from 3 years ago. I use to have 2 of them in raid 5 config. I tried to reformat one of them and I was successful. But somehow the other two is showing up as 2T. Tried using different computers, USB3, USB2, 3.0Sata cable, 6.0 Sata cable all is not working under window 7 enterprise version 64bit. Again in bios it looks fine. Thanks.
 
Solution
Wait, you had 2 disks total in a RAID5? Or two others with this one?

It sounds like you may have done a quick format and the drives are still reporting the volume of the RAID, try to do a full format to force them back to the right size, or use something like DBAN to wipe the disks.

With the size in question, it's going to take some time for either of these measures to pan out, a few hours at least.

If you choose a wipe, just a pass of all zeroes is fine since you're reusing the drives and not disposing.

Saberus

Distinguished
Wait, you had 2 disks total in a RAID5? Or two others with this one?

It sounds like you may have done a quick format and the drives are still reporting the volume of the RAID, try to do a full format to force them back to the right size, or use something like DBAN to wipe the disks.

With the size in question, it's going to take some time for either of these measures to pan out, a few hours at least.

If you choose a wipe, just a pass of all zeroes is fine since you're reusing the drives and not disposing.
 
Solution

bjkill

Honorable
May 23, 2012
133
0
10,690
Thank you everyone for the help. So I did try to wipe the partitions on the drive in Partition Master and you are right, it was still showing the 2TB Volume size of my old raid 5. So I basically took a 1T drive and cloned it using an external drive dock that has its own cloning function without having to use any software from my computer. After I did that the problem's solved.