February 10, 20206 yr Author So I ran Preclear on the 6TB HGST Deskstar that had amassed 835 CRC errors and the Current Pending Sector went from 0 to 8. I had just set the drive on top of my server for the preclear and at one point noticed temps up to 39 degrees C despite ambient being around 19. I don't believe my 8TB drive got anywhere near that. I now have to decide if I'm going to re-introduce this drive into the array, replacing a smaller disk or not. The drive currently has 1yr 10mo power on time. Edited February 10, 20206 yr by TyantA
February 10, 20206 yr Community Expert 6 minutes ago, TyantA said: and the Current Pending Sector went from 0 to 8. Unlike CRC errors this is a disk problem. 7 minutes ago, TyantA said: I had just set the drive on top of my server for the preclear and at one point noticed temps up to 39 degrees C despite ambient being around 19. Perfectly normal without a fan on it, but still a normal safe operating temperature.
February 10, 20206 yr Community Expert 27 minutes ago, TyantA said: the Current Pending Sector went from 0 to 8 Personally, I would run a couple of more preclear cycles and make sure that no new 'Current Pending Sectors' appeared and were cleared. These occurrence of these errors can be an indicator that the drive is starting to fail.
February 11, 20206 yr Author So... I set it up to do 2 more preclear cycles... and it failed on the first cycle after 22 hours on step 5: Quote Post-Read failed - Aborted Preclear log attached. Smart status hasn't changed though, so I'm not sure what that means for this drive. This was on a new(er) cable attached directly to the motherboard. Early this morning I put a room fan on it which brought the temp closer to what it would be inside the case. Edit: I just checked and (thankfully) the drive is still under warranty until September 29th of this year. preclear_disk_K1JV2P5D_32208.txt Edited February 12, 20206 yr by TyantA
February 12, 20206 yr Community Expert Personally, at this point I would RMA it. I have RMA drives a few years back (when warranties were longer) and never was never questioned as to why. In fact, the replacement drives were usually shipped within a few hours of receipt. If you think about it. RMA'ing a drive is not a simple procedure. It involves considerable effort on the part of the customer and potentially a lose of data. He is probably not happy at this point. Why would a manufacturer risk a case of bad customer relations if their returns department can't find a problem. In their shoes, I would just eat the cost and charge it to customer good will. But I would flag the customer to make sure he isn't a repeat offender.
February 12, 20206 yr Author Fair point. If I'm not mistaken, this is marketed as a "NAS" drive too, I paid $200 CAD + tax about 2 years ago for it; I'd certainly expect a longer lifespan than that. I do want to RMA it, I guess the only question is, do I do it now, while it's out of my system or later - before the warranty's up. The latter is obviously riskier as I could forget or the drive could completely fail before then in which case I could lose data should another go before I can get a replacement at a decent price. The benefit, of course, would be potentially getting more life (~1/2 year) out of the current one and in turn less wear on the replacement. I don't really think it's worth it though. Edit: curious though how it seems to have aborted due to an i/o error: Feb 11 15:35:23 preclear_disk_K1JV2P5D_32208: Post-Read: dd output: dd: error reading '/dev/sdh': Input/output error Edited February 12, 20206 yr by TyantA
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