I have an HP Envy 17 laptop that has only 1 USB 3.0 port. I have 1 USB 3.0 drive and about 8 USB 2 drives/devices plugged into a USB 2.0 hub.
I want to buy a USB 3.0 hub and another USB 3.0 drive.
What do I need to understand to make the best choice?
e.g. It seems that for some USB hubs, the ports share the bandwidth of the USB 3.0 host (e.g. SIIG 4-port USB 3.0 Hub Review
) - that wouldn't please me as I am planning on connecting two USB 3.0 drives and the 2.0 hub to the 3.0 hub.
Another gotcha: Upon bootup or reboot, the Envy bios seems to do extensive disk validation on all connected USB drives that (as best as I can explain) have not received a "disconnect" or "power-off" signal. To better explain:
1) If the external USB drives are dormant, I only see the BIOS “Press the ESC Key for Startup Menu” at bootup for less than 1 second (which is how I have configured it). This scenario is common if my laptop was powered off overnight and then I turn it on the next day.
2) If the external USB drives have only begun to spin up, then “Press the ESC Key for Startup Menu” only displays for about 5 seconds. This scenario happens if, e.g., I power-on per Scenario 1 above, hit ESC to mess with the BIOS and reboot within maybe 5 seconds. Upon reboot, the delay is now 5 seconds (it seems because the USB drives are still spinning up)
3) If the external USB drives are fully up and running (i.e. they have had enough time to fully spin up), then “Press the ESC Key for Startup Menu” displays for 45 seconds. This scenario happens during all reboots from Windows (i.e. all USB drives were spun up and active before the reboot)
The only way I have found to eliminate the bootup delay is to unplug the power to the USB hub for a moment and plug it back in. Then I can boot/reboot the laptop without delay.
I mention this "gotcha" because I am hoping that there may be a spec or feature whereby the USB 3.0 hub will send some type of "reset" signal to the connected USB drives upon reboot (i.e. the equivalent of unplugging the power to the hub momentarily) so that I won't face a 45 second delay at bootup (I am not too keen on unplugging/plugging in the hub power every time I reboot!)
Thanks for your help-