On Mon, Sep 30, 2019 at 01:41:37AM -0700, B wrote: > > > On 9/29/19 4:30 AM, Mark Fletcher wrote: > > Any thoughts on where I might look to find settings that can be tweaked > > to make it spin down when idle? > > > See sdparm and hdparm tools. hdparm is probably the wrong tool because it's > for internal drives connected to IDE/ATA/SATA busses. The reason sdparm > works for USB drives is because of SCSI-over-USB emulation. See man page for > more info. > > The best way to do it is with a udev rule that will run some commands when > the USB device gets plugged in. Otherwise the device resets it's config each > time you plug it in. >
Thanks a lot for the suggestions and the details. I will try this later. Much appreciated. Do you (or anyone else) have any thoughts on why this is necessary in Buster but wasn't in Stretch? Or is it more likely to be that the new cage isn't triggering a udev rule the old one was or something? Thanks again for your help Mark