ching, it's normal to wait for long time because the DSM software also checking your HDD during format. Actually, you can stop the formatting, and reformat the HDD in NAS "without" checking the HDD, then it will takes only 15-20mins for 2TB. DSM will setup in every HDD in the NAS, even one is fail, other HDD will not be affected.
hope this help!
Green is 5400rpm and Black is 7200rpm which is faster, but green save more power. Unless you are doing the surver, just data backup and multimedia, green is ok. |