For 20 TB of computer measured storage you need a 22 TB hdd. ( Due to the way hard drive manufactures market vs how computers read disk size, they use different base systems)
I recently got 20 TB Seagate EXOs for $260 on eBay sold new by Newegg .(20 TB EXOs has 18 TB usable as read by Windows and Linux )
For 20 TB of computer measured storage you need a 22 TB hdd. ( Due to the way hard drive manufactures market vs how computers read disk size, they use different base systems)
I recently got 20 TB Seagate EXOs for $260 on eBay sold new by Newegg .(20 TB EXOs has 18 TB usable as read by Windows and Linux )