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swsb22's avatar
swsb22
Aspirant
Jun 27, 2015

New SMART disk errors detected

I received an email with the following information.

Reallocated sector count has increased in the last day.

Disk 2:
Previous count: 0
Current count: 1096

Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.

Unfortunately I am a complete technophobe (someone set my ReadyNAS up for me), and have now gone into a blind panic that the drive is failing and I have no idea what to do. This is the first time that I've received this and the fact that the 'current count' is so high makes me worried. I presume the problem is the drive and not just some anomaly.
I have a ReadyNAS-Duo with Seagate ST2000DL003-9VT166 drives (x2) and am running on a Mac OSX.
Any help would be much appreciated.
Thanks

4 Replies

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  • mdgm-ntgr's avatar
    mdgm-ntgr
    NETGEAR Employee Retired
    That disk is bad and needs replacing.

    Do you have a backup?
  • No I don't, only disk 1. How do I replace the disk? Not even sure which one to buy!
  • StephenB's avatar
    StephenB
    Guru - Experienced User
    itsjasper wrote:
    Either a Seagate NAS / WD Red 2TB drive should work.
    That is, either an ST2000VN000 or a WD20EFRX.

    When you get the new disk, remove the old one with the NAS running, and hot-insert the replacement.

    While you are waiting for the new disk, back up your data.

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