I can confirm that OFW 4.88 works with 1.500 TiB (1,536 GiB, ~1.65TB) = 3,221,225,472 sectors with 512 bytes, but it is not safe ("Restore File System" issue).
For a safe working system use 963 GiB = 1,034,013,376,512 Bytes = 2,019,557,376 sectors with 512 bytes (*1).
Please note those different...