Jobine Posted December 24, 2020 Share Posted December 24, 2020 Hi, I have errors on my parity disk and my disk 1. Is there a preference for replacing ... Disk 1 and after parity or Parity and after Disk 1? Thank, Quote Link to comment
Jobine Posted December 25, 2020 Author Share Posted December 25, 2020 (edited) I decided to replace my disc 1 first. I have turn off the server and replaced the disk. In array operations, I don't have the message to rebuild Any idea ? Edited December 25, 2020 by Jobine Quote Link to comment
itimpi Posted December 25, 2020 Share Posted December 25, 2020 If you have 2 disks marked as disabled then there is no automated recovery operation. If you meant to say they were showing errors but had not been marked with a red ‘x’ to indicate they were disabled then we need more information about the state of your system to give advice. Providing your system’s diagnostics zip file (obtained via Tools => Diagnostics) might help us see the current state of your system. Quote Link to comment
Jobine Posted December 25, 2020 Author Share Posted December 25, 2020 Thank for your help. The errors come from my parity disk and disk 1. After a reboot the errors are gone. I also have disk 7, which I disabled (mark with a red X) because it had too many errors, after manually moving the data. It's still in the server. I can reactivate it Here's my diagnostic file. Thank and Merry Christmas. serveur-diagnostics-20201225-0954.zip Quote Link to comment
JorgeB Posted December 26, 2020 Share Posted December 26, 2020 If it happens again grab diags before rebooting, multiple disk errors are usually not a disk problem, disk7 is failing though, assuming it's the currently unassigned WD. Quote Link to comment
Jobine Posted December 26, 2020 Author Share Posted December 26, 2020 So am I waiting for more errors? Do I reactivate disk 7? Thank, Quote Link to comment
JorgeB Posted December 27, 2020 Share Posted December 27, 2020 20 hours ago, Jobine said: Do I reactivate disk 7? Yes, but using a new disk. Quote Link to comment
Jobine Posted December 27, 2020 Author Share Posted December 27, 2020 It is disabled and it has nothing on it. Can I just remove it? Quote Link to comment
Jobine Posted December 27, 2020 Author Share Posted December 27, 2020 How can I replace the parity disk and disk 1, which have errors. And remove disk 7 from my array? Quote Link to comment
JorgeB Posted December 28, 2020 Share Posted December 28, 2020 You can try doing a new config, don't assign disk7, assign a new parity and re-sync parity, but if disk1 is also failing there will be some errors. Quote Link to comment
Jobine Posted December 29, 2020 Author Share Posted December 29, 2020 I have a lot of information, I don't want to lose it all Quote Link to comment
JorgeB Posted December 29, 2020 Share Posted December 29, 2020 Single parity can't protect from a dual disk failure, though unlikely to lose it all, but expect some data loss, what I described above is IMHO the best way forward. Quote Link to comment
Jobine Posted December 29, 2020 Author Share Posted December 29, 2020 Yes, but if a make a new config, I lost all my data ? Or how exactly I can proceed ? Thank, Quote Link to comment
JorgeB Posted December 29, 2020 Share Posted December 29, 2020 21 minutes ago, Jobine said: but if a make a new config, I lost all my data ? No, new config keeps all the data, you'll lose any data in the disabled disk7, but according to you there's nothing there. Quote Link to comment
ChatNoir Posted December 29, 2020 Share Posted December 29, 2020 You will not loose the data from the drive that have no problem. Quote Link to comment
Jobine Posted December 31, 2020 Author Share Posted December 31, 2020 What's the exactly best way to do it ? (remove disk7, change parity 1 and disk 1) 1- Stop the server and change parity drive (should I change it right now ?) 2- Start the server 3- Stop the Array 4- Use Tools - New config 5- In the New config - Preserve current assignments, which one should I choose ? None All Parity disk Data slots Cache slots 6- Should I replace the parity disk first, or at this moment ? or remove disk 7 from the array ? I'm lost for the logical order without losing any data... Thank for your help. Quote Link to comment
JorgeB Posted December 31, 2020 Share Posted December 31, 2020 3 minutes ago, Jobine said: without losing any data... Some data loss is expected: On 12/29/2020 at 2:56 PM, JorgeB said: Single parity can't protect from a dual disk failure, Best bet to recover as much data as possible is to clone disk1 to a new disk using ddrescue, then do a new config with the clone and the remaining disks, run an extended SMART test on parity, if it fails replace it also. Quote Link to comment
Jobine Posted December 31, 2020 Author Share Posted December 31, 2020 In doubt, I checked my disk 7 ... Why is there new data if it's not part of the array? Quote Link to comment
JorgeB Posted December 31, 2020 Share Posted December 31, 2020 Don't understand what you mean, if you mean the emulated disk7 it's still part of the array, if you mean the old disk it will have whatever data it was there. Quote Link to comment
Jobine Posted December 31, 2020 Author Share Posted December 31, 2020 I have enough space to move my disk7 data to the others. but I really don't understand why I have data here It is identified as not installed And after, What should I do ? I really appreciate your help ... Quote Link to comment
Jobine Posted December 31, 2020 Author Share Posted December 31, 2020 2 minutes ago, JorgeB said: Don't understand what you mean, if you mean the emulated disk7 it's still part of the array, if you mean the old disk it will have whatever data it was there. When I connect to disk7 with Krusader, is there data from yesterday on it, but it's been several months since I took it out of the array. Quote Link to comment
itimpi Posted December 31, 2020 Share Posted December 31, 2020 1 hour ago, Jobine said: When I connect to disk7 with Krusader, is there data from yesterday on it, but it's been several months since I took it out of the array. When you removed the disk UnRAID started emulating it using the combination of the other data drives plus the parity drive. Unraid is therefore treating it as if it is a ‘failed’ disk, and when you replace it with a physical disk UnRAID will rebuild onto that disk what it thinks should be there I.r. The contents of the emulated disk). Quote Link to comment
Jobine Posted December 31, 2020 Author Share Posted December 31, 2020 Thank, Currently, I'm copying the data to the other disks. But after, how I remove disk7 completely from the array ? Quote Link to comment
trurl Posted December 31, 2020 Share Posted December 31, 2020 After there is no data left on the emulated disk7, you would have to New Config without that disk and rebuild parity. Quote Link to comment
Jobine Posted December 31, 2020 Author Share Posted December 31, 2020 I had errors on the parity. I did a SMART test and everything is ok. In the New config - Preserve current assignments, which one should I choose ? None All Parity disk Data slots Cache slots Thank, Quote Link to comment
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