[U-Boot] [PATCH] usb: fix usb start problem with SMSC USB hub and Toshiba USB stick

[Detlev Zundel]

Hi Roland,

[...]

> Anyway, just to tell about the background:
> I`m trying to replace my home server with a Dockstar. As this runs 24/7 
> i want something energy-efficient for that.
> I got some Dockstars for so cheap and they are asbolute fantastic and 
> just perfect fit to be run with debian. I plan buying a solid state sata disk 
> with sata2usb one day, but seeing two ordinary disks with 2 different ide2usb 
> fail does not encourage me to spend bucks on something new. I want a robust 
> system where i can use more than "some" drives which are just compatible by 
> chance. From what i have tested, the debian install on dockstar runs pretty well, 
> stable and fast.

In my personal experience, "robust" and "usb" do not mix well in one
sentence.  Maybe I'm somewhat conservative, but just in another product
I have seen spurious USB dis- and reconnects after days and weeks of
otherwise solid functioning.  Of course they _did_ mess up the software
and crash the system.  So be sure that your software stack can cope with
something like that.

In effect, currently I would not try to design a "robust system" (ready
to be sold as a product) with its primary rootfilesystem on a USB
storage device.  For IDE/ATA/SATA all the problems in a running system
that I have seen have had their cause in the device, not in the
interconnect method.  This is not something I can say about USB.

Cheers
  Detlev

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