I have a 1 TB Western Digital external hard drive hooked up to my computer via USB. I have been slightly worried about the possibility of it going out, as I've had it for three years now and it seems to be getting a tad noisier and slower to start up lately (although that could be my imagination). So I downloaded SeaTools for Windows and ran two tests. The first one (Short Drive Self Test) passed. The second (Long Generic) reported (in its words) "Long Generic - FAIL". I then downloaded and ran HDDScan, which can apparently find out the S.M.A.R.T. data of a hard drive, and got the following results: I have no idea how to interpret these results (except that the green dots seemingly indicate success), so I don't know for certain if the drive passed or failed. My questions are these: 1. Does the S.M.A.R.T. data indicate that the drive is functioning correctly? 2. Even if the S.M.A.R.T. data does indeed indicate that the drive is functioning correctly, should the failure of the Long Generic SeaTools test be considered proof that there is a problem after all that S.M.A.R.T. simply failed to detect? 3. If there is likely to be a problem, is there a way to pinpoint what it is and whether it is most likely a fixable one or one that would require replacement of the drive?