USB SCSI Disconnects when Idle

Problem: An external USB harddrive disconnects and immediately reconnects with different device name. You find log entries like these: Jan 17 00:46:52 workstation kernel: [212306.086568] sd 33:0:0:0: [sdj] Attached SCSI disk Jan 17 01:51:14 workstation kernel: [216168.064075] usb 2-4: USB disconnect, device number 11 Jan 17 01:51:15 workstation kernel: [216168.596514] usb 2-4: new SuperSpeed USB device …

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