aspdend Posted August 15, 2018 Posted August 15, 2018 A little while ago I upgraded my setup to a new case with 24 hot swap bays so I could expand my array having reached maximum capacity in my existing case. At the same time, I added a second controller for the number of disks. All good. Everything transferred over smoothly. After making sure it was all behaving properly, I dug out one of my older disks that I had previously replaced with a higher capacity one, popped it in the new array and pre-cleared it. All went well, it passed. Did SMART tests etc everything passed. Today I got some read errors reported off the disk (67 iirc). I appreciate it was a risk to add in an older disk, but there was nothing wrong with it when it was replaced and the preclear/SMART testing all passed - in fact the SMART testing still reports it as passing. What would the best thing be to do with it now? I presume just clear it off, remove it and shrink the array back down. There is only a small amount of data on it (I made sure of that) and none of it is irreplaceable so I'm not worried about the data on it - just a bit loathe to bin a disk (definitely past it's warranty) unless I have to...
JorgeB Posted August 15, 2018 Posted August 15, 2018 Please post your diagnostics: Tools -> Diagnostics
aspdend Posted August 15, 2018 Author Posted August 15, 2018 3 hours ago, johnnie.black said: Please post your diagnostics: Tools -> Diagnostics Here you go tower-diagnostics-20180815-1739.zip
JorgeB Posted August 15, 2018 Posted August 15, 2018 Looks more like a connection problem, you could replace/swap cables/backplane and see problem doesn't reoccur, but if you want to remove there are two options, both described here: https://lime-technology.com/wiki/Shrink_array#For_unRAID_v6.2_and_later P.S. you should also update to latest release.
aspdend Posted August 15, 2018 Author Posted August 15, 2018 I've been waiting to get my server relocated before updating - that was to do this weekend. The drive is on a backplane with 4 others - it#s essentially a Norco RPC-4224 http://www.norcotek.com/product/rpc-4224/ Which is why I wasn't thinking it's a cabling issue...
JorgeB Posted August 15, 2018 Posted August 15, 2018 There are still cables, and although rare a backplane slot can also fail, only way to find out cor sure would be to swap slots with another disk, that would rule it out.
aspdend Posted August 15, 2018 Author Posted August 15, 2018 Well I have spare cables so I could try that first then if nothing then I can swap drives. So what would I do after powering down to swap cables? Restart and run a parity check to see if any errors occur or just restart and see what happens?
JorgeB Posted August 15, 2018 Posted August 15, 2018 1 minute ago, aspdend said: Restart and run a parity check to see if any errors occur or just restart and see what happens? Either way, but a parity check would likely be faster to detect any issues, just make sure it's non correct.
aspdend Posted August 15, 2018 Author Posted August 15, 2018 2 minutes ago, johnnie.black said: Either way, but a parity check would likely be faster to detect any issues, just make sure it's non correct. Sounds good to me, as usual, many thanks for your sage advice, I will post an update when I know more
aspdend Posted August 19, 2018 Author Posted August 19, 2018 On 8/15/2018 at 6:20 PM, johnnie.black said: Either way, but a parity check would likely be faster to detect any issues, just make sure it's non correct. Hi johnnie, I have now replaced the cable (after some struggles with the SFF 8087 connectors!) and no joy - still getting read errors. I then changed the port on the card and no joy - still getting read errors so I have changed the slot the drive is in - now the drive is on a different backplane using a different cable connected to the other card in the server and no joy - still getting the read errors. I have attached the revised logs - any more advice? tower-diagnostics-20180819-1523.zip
JorgeB Posted August 19, 2018 Posted August 19, 2018 No errors on latest logs, but if you've ruled out everything else you're left with the disk, remove or replace.
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