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liouk's avatar
liouk
Aspirant
Jan 20, 2020
Solved

Disk in channel 1 (Internal) changed state from ONLINE to FAILED (RN202, 2x WD Red 3TB, OS 6.10.2)

Greetings,   For some time now I have been getting the error mentioned in the subject, and I am trying to find out whether the failing disk needs replacing or if there's anything I can do to fix th...
  • StephenB's avatar
    StephenB
    Jan 27, 2020

    liouk wrote:

     

    Here's my disk_info.log as well:

    Device:             sda
    Controller:         0
    Channel:            0
    Model:              WDC_WD30EFRX-68EUZN0
    Serial:             WD-WCC4N1XHR82L
    Firmware:           82.00A82
    Class:              SATA
    Sectors:            5860533168
    Pool:               data
    PoolType:           RAID 1
    PoolState:          3
    PoolHostId:         1165483a
    Health data 
      ATA Error Count:                0
    

     


    This is all you see for disk 1?  My guess is yes, as that is consistent with what you posted before.

    Reformatting a line from the earlier pdf:

    time                model                serial               realloc_sect realloc_evnt spin_retry_cnt ioedc      cmd_timeouts pending_sect uncorrectable_err ata_errors
    ------------------- -------------------- -------------------- ------------ ------------ -------------- ---------- ------------ ------------ ----------------- ----------
    2020-01-20 23:39:10 WDC WD30EFRX-68EUZN0 WD-WCC4N1XHR82L           41          7              0           -1          -1           0             0               0 

    You can see there were 41 reallocated sectors reported on the 20th, and that count was increasing regularly for some months.  

     

    I believe that disk 1 has failed.  If you can connect it to a Windows PC (either with a USB adapter/dock or with SATA), you can test it with WD's Lifeguard program.  FWIW, I'd replace it even if it passes Lifeguard.

     

    If you installed it at the same time as disk 2, it likely is still covered by the manufacturer's warranty (The power-on hours suggests it's been installed for about 18 months, and the warranty is three years.  Though if the NAS is powered down a lot, the disks could be a lot older).  If it is covered, you can get an RMA, but the replacement disk will be recertified (not new).  Personally I generally purchase a new disk, and keep the replacement disk as an emergency spare.

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