Hello,

One of my HDDs in my NAS started clicking recently. I intend to replace it, but I want to make sure that I correctly pinpointed the faulty one.

I have 5 HDDs in my NAS and I presume it’s the bottom one, as the sound seems to come from one of the 2 drives at the bottom and its activity LED stays lighted up longer than the others when clicking. (Oh yes, clicking is intermittent, the only reliable way I found to make it click regularly was to scroll ~1700 RAWs in Darktable.)

Is there any indicator that can confirm this is the faulty one? Long SMART tests obviously report nothing and all drives have the same temperature. Maybe a latency test? I’m not sure how to conduct that on TrueNAS (my pool is a 4-wide RAIDZ1 with one Hot Spare)

Thank you very much!

  • BlackEco@lemmy.blackeco.comOPEnglish
    20·
    18 hours ago

    Ah, good idea! I just don’t have any non-magnetic screwdriver at home, I’m afraid as to what might happen if I get its magnetic tip close to a drive.

    Oh wait, I found a lousy screwdriver, it works like a charm! It’s definitely the bottom one. Thank you very much!

    • frongt@lemmy.zipEnglish
      12·
      18 hours ago

      Nothing. The field isn’t strong enough to affect the drive. They have much stronger magnets inside them all the time.

      You could just use any other object too.

    • over_clox@lemmy.worldEnglish
      51·
      18 hours ago

      Don’t worry about magnetic screwdrivers, the drives themselves have way stronger magnets for the head arm actuators.

      Glad you found the failing drive though 👍

    • mumblerfish@lemmy.worldEnglish
      2·
      17 hours ago

      Hm, I should have asked… When I had a similar problem I just unplugged disk by disk from my raidz2 to find the right one. Good that you found a better way.