Re: Performance problems with external USB drive



Hi Sasha,

thanks for your replay.

Am 19.01.2006 13:30 schrieb Sasha Tsykin:
It is possible your laptop has USB full speed not USB Hi Speed. USB Full Speed is actually USB 1.1 rebranded, but is used for marketing purposes. If access to the drive is very slow, that might be the problem.

It is a Samsung P28 XTC 1400c. According to their product site it should have 4 USB 2.0-controller. However, if I interpret the output of /proc/bus/usb/devices correctly then there are two slow ('Spd=12')
and two fast ('Spd=480') which match - as far as I know - usb 1.1 and 2.0 specification.


Matthias

--
ubuntu-users mailing list
ubuntu-users@xxxxxxxxxxxxxxxx
http://lists.ubuntu.com/mailman/listinfo/ubuntu-users



Relevant Pages

  • Re: Performance problems with external USB drive
    ... Full Speed is actually USB 1.1 rebranded, but is used for marketing purposes. ... According to their product site it should have 4 USB 2.0-controller. ... if I interpret the output ...
    (Ubuntu)
  • Re: Nikon D70, usb 2.0 ??
    ... "USB 2.0 Full Speed" is USB 1.1 renamed for marketing purposes. ... Jeremy | jeremy@xxxxxxxxxxx ... Prev by Date: ...
    (rec.photo.digital.slr-systems)
  • Re: AWG cable -- which one?
    ... knew how to interpret it. ... User-Agent: vBulletin USENET gateway ... Make sure your cable is 24 AWG not 28 AWG, ... The thread was talking about connecting an external USB hard drive and the power delivered to it, not an internal DVD drive and the analog or data cable connected to it. ...
    (microsoft.public.windowsxp.hardware)
  • Re: Disk Cloning Software?
    ... That's a clone, not an image. ... Consider your USB enclosure's bios may interpret the USB connected hard ...
    (microsoft.public.windowsxp.general)
  • Re: Suddenly Windows Does Not Recognise My USB Mass Storage Devices
    ... don't have the knowledge to interpret them. ... I have now realised that the issue seems to be with USB 2 devices - as it ... happens all my mass storage devices are USB 2, all the others are USB 1. ... connect them via an old USB 1 external hub that I have - but they work ...
    (microsoft.public.windowsxp.perform_maintain)