Pete0 Posted February 14, 2022 Share Posted February 14, 2022 Hello. I have a couple of WD Red 4 TB drives that I migrated from a QNAP NAS. Today I wanted to run a SMART Test on all drives because the one parity drive already showed 135 read errors in the "start" tab. Currently the SMART test for two drives (including the parity) is running finde. But for one drive it keeps on failing a couple of seconds after I have started it. My expirience with SMART is very very limited and I have no idea why it failes but attached is the report of the test. Is the drive just dying of old age? WDC_WD40EFRX-68WT0N0_WD-WCC4E7CAE1VY-20220213-1558.txt Quote Link to comment
trurl Posted February 14, 2022 Share Posted February 14, 2022 Serial Number: WD-WCC4E7CAE1VY ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE 1 Raw_Read_Error_Rate POSR-K 200 200 051 - 2 200 Multi_Zone_Error_Rate ---R-- 200 200 000 - 2 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 2 Extended offline Completed: read failure 90% 51243 3006328 REPLACE Are you sure you don't have others that need attention? Attach diagnostics to your NEXT post in this thread. Quote Link to comment
Pete0 Posted February 14, 2022 Author Share Posted February 14, 2022 (edited) @trurl I have one replacement drive left. But where exactly is the problem in the quoted text in your post? unraid was showing a SMART "ok" status. Full diagnostics attached. unraid-diagnostics-20220214-0737.zip Edited February 14, 2022 by Pete0 Quote Link to comment
ChatNoir Posted February 14, 2022 Share Posted February 14, 2022 Do you have the notifications enabled to warn you as soon as possible of issues ? Note that you have to manually add SMART Attributes 1 and 200 to the monitored attributes for WD drives. Quote Link to comment
Pete0 Posted February 14, 2022 Author Share Posted February 14, 2022 1 minute ago, ChatNoir said: Note that you have to manually add SMART Attributes 1 and 200 to the monitored attributes for WD drives. I will add 1 and 200 to the list. Thank you. But as I said up until now Quote Link to comment
ChatNoir Posted February 14, 2022 Share Posted February 14, 2022 1 minute ago, Pete0 said: But where exactly is the problem in the quoted text in your post? Trurl extracted the most relevant elements from your SMART report. This drive also has some errors : Serial Number: WD-WCC4E1UNZTYS ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE 1 Raw_Read_Error_Rate POSR-K 200 200 051 - 13 4 minutes ago, Pete0 said: I will add 1 and 200 to the list. Thank you. But as I said up until now Different manufacturers use some attributes differently, so Unraid do not monitor all of them. This only represent the monitored attributes, so not entirely representative. Quote Link to comment
Pete0 Posted February 14, 2022 Author Share Posted February 14, 2022 @ChatNoir ah I see. No by adding 1 and 200 unraid also shows a thumps down. Thank you. Weill I hope the others are ok despite being also 6 years old or more. I will replace this one drive first. Quote Link to comment
JorgeB Posted February 14, 2022 Share Posted February 14, 2022 3 hours ago, Pete0 said: But where exactly is the problem in the quoted text in your post? 10 hours ago, trurl said: Completed: read failure This means the SMART test failed with a read error. Quote Link to comment
Pete0 Posted February 14, 2022 Author Share Posted February 14, 2022 I see. I will inform myself about SMART a little bit more so I understand it better. Meanwhile I have bought another drive, in addition to the one I already have. Unraid shows two drives (parity and one data drive) with errors so I will replace them both. I don't want to derail the thread but does Unraid do a periodical SMART check? In the task scheduling settings there is no SMART job to set. My previous QNAP did run an extended SMART test every week. Quote Link to comment
JorgeB Posted February 14, 2022 Share Posted February 14, 2022 30 minutes ago, Pete0 said: I don't want to derail the thread but does Unraid do a periodical SMART check? No, but a parity check is basically the same as an extended SMART test. 1 Quote Link to comment
Pete0 Posted February 14, 2022 Author Share Posted February 14, 2022 Thank you for clarification @JorgeB Quote Link to comment
trurl Posted February 14, 2022 Share Posted February 14, 2022 It does constantly monitor specified SMART attributes. Quote Link to comment
Pete0 Posted February 15, 2022 Author Share Posted February 15, 2022 (edited) Sorry to bother again. Yesterday I have replaced the faulty drive with a "new" one. New is in quotes because this is an identical WD Red 4 TB drive to the one that I replaced but this one was unused for about 5 years. It was still sealed. Having added it yesterday and rebuild parity I started about one hour ago to fill it with data and it didn't take long and unraid started to show read errors. Currently it is as 625 read/write errors. This was no problem while the parity was building. Is this drive failing too? Edit: ok, nevermind. It just failed. unraid-smart-20220215-0448.zip Edited February 15, 2022 by Pete0 Quote Link to comment
trurl Posted February 16, 2022 Share Posted February 16, 2022 Attach diagnostics to your NEXT post in this thread Quote Link to comment
Pete0 Posted February 24, 2022 Author Share Posted February 24, 2022 @trurl sorry for not having replied to you. I did not bother with the diagnostics and simply replaced the failed drive with a new one. Currently my system is running fine, no more read/write errors so I guess this topic here is done. Thank you for your help. Quote Link to comment
trurl Posted February 24, 2022 Share Posted February 24, 2022 @Pete0 SMART report for that drive looked OK. Probably a connection problem, but without diagnostics couldn't say for sure. Probably any connection problem you were having was fixed as a consequence of replacing the drive, even if the drive itself was not the problem. And, of course, since those problems were the result of replacing a drive, connection problems are not uncommon in that situation. You must always double check all connections when mucking about inside. Quote Link to comment
Pete0 Posted February 24, 2022 Author Share Posted February 24, 2022 I see. Thank you. I did not yet destroy the drive. I might give it another try soon and check it again. Quote Link to comment
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