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Carpet3

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    Secondary parity drive throwing same number of errors

    in General Support

    Posted · Edited by Carpet3

    Hi,

     

    Running Unraid 6.9.2serenity-diagnostics-20220315-1844.zip

     

    Hopefully someone can help me with this. My secondary parity drive keeps throwing an error. This has been happening for a couple of months.

    I can add the drive to the array and it will be fine for a week or so (this is with normal reading/writing to the array during that week) and then enventually the array with fall into an error state with the second parity drive showing 896 errors.

    I can remove the parity drive from the array and the array will then be fine. If I re-add the drive back to the array it will rebuild fine and last another week of normal usage before throwing the exact same 896 errors again. SMART report is coming back as ok on the drive and I have tried changing the cable on it.

    I have run a preclear on the drive after it threw the error and it all goes ok with no errors. Added back into the array  and a week (ish) later it'll be back to the same.

    From what i've seen , it's always 896 errors, seems pretty consistent on that which I find odd and can't work out what's causing it.

    I also seem to have a failing cache drive (the reallocated sectors has been slowly creeping up over the last couple of weeks but I believe this to be a separate issue)

    Diagnostics attached.

    serenity-diagnostics-20220315-1844.zip

    Thousands of parity errors

    in General Support

    Posted

    Hi,

     

    I've just started getting tens of thousands of errors on my server.

     

    First check got 46724, I did a subsequent (none correcting) check and it came up with 99800.

     

    Could someone help with what's going on? Diagnostics attached before I rebooted it.

     

    I can see the following error again and again in the log:

      

    Mar  4 23:56:24 Serenity kernel: ata10: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Mar  4 23:56:24 Serenity kernel: ata10.00: configured for UDMA/133
Mar  4 23:56:24 Serenity kernel: ata10: EH complete
Mar  4 23:58:25 Serenity kernel: ata10: limiting SATA link speed to 3.0 Gbps
Mar  4 23:58:25 Serenity kernel: ata10.00: exception Emask 0x10 SAct 0x0 SErr 0x190002 action 0xe frozen
Mar  4 23:58:25 Serenity kernel: ata10.00: irq_stat 0x80400000, PHY RDY changed
Mar  4 23:58:25 Serenity kernel: ata10: SError: { RecovComm PHYRdyChg 10B8B Dispar }
Mar  4 23:58:25 Serenity kernel: ata10.00: failed command: READ DMA EXT
Mar  4 23:58:25 Serenity kernel: ata10.00: cmd 25/00:40:d8:c5:9b/00:01:05:00:00/e0 tag 20 dma 163840 in
Mar  4 23:58:25 Serenity kernel:         res 50/00:00:d8:c5:9b/00:00:05:00:00/e0 Emask 0x10 (ATA bus error)
Mar  4 23:58:25 Serenity kernel: ata10.00: status: { DRDY }
Mar  4 23:58:25 Serenity kernel: ata10: hard resetting link
Mar  4 23:58:31 Serenity kernel: ata10: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
Mar  4 23:58:31 Serenity kernel: ata10.00: configured for UDMA/133
Mar  4 23:58:31 Serenity kernel: ata10: EH complete

    I'm guessing it's either the card or one of the drives but I don't see how to identify which?

     

    I recently (before these errors showed up) did a quick SMART test on all the drives and they all passed.

     

    I know one of the disks (7) has a lot of UDMA errors but this was due to a faulty cable a while back and has been fine for a long time.

     

    Thanks in advance

     

     

     

    serenity-diagnostics-20200304-2331.zip

    Re: preclear_disk.sh - a new utility to burn-in and pre-clear disks for quick add

    in User Customizations

    Posted

    My apologies, upon searching this thread for the command to clear the mbr it appears i'm not the first with this sort of problem.

     

    Can I just confirm with you that to clear the mbr you need to use the -n switch and then just stop the process once the clearing of the rest of the drive starts?

     

    I assume once that's done I can just restart the server and do a normal preclear?

    Re: preclear_disk.sh - a new utility to burn-in and pre-clear disks for quick add

    in User Customizations

    Posted

    Having a problem with a new 10EARS hdd.

     

    I've run the preclear twice now and each time it fails at stage 10 and says the drive cant be completed.

     

    I've run DLGDIAG afterwards and on a quick scan it says the drive is fine but on a long scan it says errors were found but fixed.

     

    I've just run it again on a long scan and it says there were no errors detected with the drive. It's now doing a third preclear so i'll see what happens.

     

    Is there anything else I can do or it the drive on the way out?

     

    zt2ef.jpg

     

    Edit: added pic

    Where is the Roadmap?

    in Roadmap

    Posted

    I can see a dual drive failure being very rare, but i'd still love to see it. I don't want to be the one suffering from it :/

     

    I'm familiar with PAR2, something like that would be a MASSIVE benefit to unRAID, really would be a killer feature.

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