crwdns2934241:0crwdne2934241:0 rab777hp
crwdns2934249:0crwdne2934249:0:
Simply open Disk Utility and verify the disk, very simple and it will tell you if you need repair and if it its reparable or not. Does it make any noises (eg clicks) when operating?
crwdns2915684:0crwdne2915684:0:
open