Changing fan RPM thresholds for ESXi 6.5?

Discussion in 'Virtualized Computing' started by danswartz, Sep 29, 2017.

  1. danswartz

    danswartz 2[H]4U

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    Feb 25, 2011
    So I have a new vsphere server. It's in a full-ATX case, with 4 case fans (front, back, top and door). All but the front fan are large (140mm) and run relatively slowly (700 RPM - this is by design - the supermicro IPMI thinks this is fine - these all show up as green status). Unfortunately, 700 RPM seems to be 'too low' for ESXi, as the health information shows those 3 fans as low non-critical.) I've been looking like crazy online, but I can't seem to find anywhere that you can adjust these thresholds. Any tips appreciated :)
     
    Last edited: Sep 29, 2017
  2. danswartz

    danswartz 2[H]4U

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    Solved. Apparently the IPMI sensors page is lying. It shows green/normal for the 3 700 RPM fans, but after using ipmitool to lower the low thresholds, voila, all 3 are green in the ESXi health view.
     
    Last edited: Oct 11, 2017