NAS low power consumed

  • Can you show output of the following two commands:

    Code
    lsusb
    smartctl -a /dev/sdb


  • They both = 138 W

    The drive enclosure seems to implement staggered spin-up since otherwise it would need a 12V/10A PSU and I would believe your real idle consumption is around 50% of the above number? Still not really 'low power' but at least your drive enclosure seems to support SMART. Sometimes with those JMicron SATA port multipliers (JMS539 is such a thing) SMART data for 2nd to last disk is partially faked (depends on the firmware). I hope you use the enclosure in JBOD mode?

  • The drive enclosure seems to implement staggered spin-up since otherwise it would need a 12V/10A PSU and I would believe your real idle consumption is around 50% of the above number? Still not really 'low power' but at least your drive enclosure seems to support SMART. Sometimes with those JMicron SATA port multipliers (JMS539 is such a thing) SMART data for 2nd to last disk is partially faked (depends on the firmware). I hope you use the enclosure in JBOD mode?

    ok :saint:

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