Cannot find the same size drive to replace failed drive
I have a Thunderbay 4 with 4 x 5TB Toshiba MD04ACA500 drives. I originally purchased this drive from OWC about 3 years ago. I am now having a failure warning on 2 out of 4 drives so i need to change them. Ideally i would purchase 2 x new Toshiba MD04ACA500 drives but i cannot find this drive anywhere. I contacted OWC support and they said i can use any 5TB drive, and upon looking for that i am not able to find any 5TB drives left in the world.
Are there any other options for me? I am running out of time before this RAID 5 setup fails - i can only afford 1 drive out of 4 to fail. Beyond that, i will lose my data. Please help!
The drives do not matter, so get 6TB drives if they are in your price range.