Hard drives being disconnected problem

  • Does anyone have any idea what could be wrong here?

    The hub in combination with a rather limited USB3/XHCI host controller implementation. Unfortunately this applies to vast majority of USB3 host controllers on ARM SoCs, they're often limited wrt maximum amount of endpoints and such stuff.


    The simple solution is to avoid USB hubs at all when it's about storage. USB3 storage without hubs involved can already be described as 'worst possible storage implementation' but with hubs added to the mix it becomes even worse.


    For 2 disks an alternative might be an USB3 USB-to-SATA bridge with included SATA Port Multiplier as the JMS561 (please read carefully through the stuff since this comes with its own issues).

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