On Thu, 2014-07-31 at 00:39 +0200, Laszlo T. wrote: > >> > Disconnection issues like you are seeing are typical for drawing > >> > too much power from the port. Using uas as the dmesg shows you > >> > are will allow us to send more commands to the disk at once > >> > (which is a good thing, it is faster) and as such will increase > >> > power consumption. > >> > >> Maybe the too much commands freeze the chip. > > > > That is a testable hypothesis. > > This patch shows how to manipulate that number. > > You can play with the number to see whether there's > > a critical value. > > I tested with lot of values. I'm not totally sure but it looks the 31 > is max number where it is still stable to create an ext4 filesystem. So we have a number. What is unclear to me from the available information is whether we are dealing with a limitation of the drive or of the enclosure. Did you happen to test the enclosure with another drive? Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html