On Thu, Mar 3, 2016 at 11:57 AM, Knurpht - Gertjan Lettink <knurpht@opensuse.org> wrote:
Op donderdag 3 maart 2016 09:59:52 CET schreef Greg Freemyer:
On Thu, Mar 3, 2016 at 9:40 AM, Per Jessen <per@computer.org> wrote:
Ken Schneider wrote:
On 03/03/2016 08:51 AM, Per Jessen wrote:
I've been playing with an Intel Compute Stick which has just one USB port. I've attached a cheap USB-hub to add another 3 ports - one for a USB harddrive, one for the wireless keyboard+mouse and one for a wifi dongle. I tried building a kernel (/usr/src/linux on the usb harddrive) with make -j4, but this led almost immediately to a crash/disconnect/io-errors, so I scaled back to make -j1.
I was wondering if I should be worried about the technnical quality of the USB hub?
Absolutely. Make sure the hub you are using supplies its own power or you will have problems with any device that needs more then a little power.
The USB harddrive has its own supply, and the two dongles can't be drawing that much. I was more thinking about dodgy hardware that doesn't do well with concurrent requests? Still, good point about the power, thanks.
Per,
I'm the heavy external drive connected via USB hub user on the list.
Anker brand USB 3 hubs are the only ones I trust. I've bought and discarded 2 other brands.
fyi: My 64GB lab machine currently has about 20 external USB drives hooked up to it. It's been that way for over a week. With the non-Anker hubs I would see USB connection disconnects/re-connects at least once every 24 hours, so I couldn't maintain a long term mount like this.
fyi2: I've never gone past /dev/sdz (ie. the 26th drive in a system) but I'm now close enough to think about it. What comes after /dev/sdz?
Greg
/dev/sdaa, see https://lists.debian.org/debian-isp/2010/12/msg00025.html
Hopefully I will never learn first hand that /dev/sdzz is followed by /dev/sdaaa Greg -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org