Date: Fri, 22 Apr 2005 11:08:15 -0700 From: John Pettitt <jpp@cloudview.com> To: scott renna <flexble2547@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: USB2.0 External IDE connections Message-ID: <42693D8F.4050402@cloudview.com> In-Reply-To: <20050422144807.37575.qmail@web53606.mail.yahoo.com> References: <20050422144807.37575.qmail@web53606.mail.yahoo.com>
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scott renna wrote: >Has anyone had any luck in using external USB2.0 >enclosures on FreeBSD 5.3? I've picked up 2 of them >with different chipsets and have 2 USB2.0 to IDE >converter cables. My kernel has support for ehci so >that's not an issue, but every time i plug one of >these devices it, it's detected as da0 and a umass >device, and I'm told data transfer is limited to >1Mb/s. attempting to mount da0 doesn't work. > >has anyone had any experience in using these types of >devices? > >thanks > >scott > > > > They basically work (at least with 5.4) but there are some open bugs for failure under high load - I too switched to firewire in the end. The 1Mb/s think seems to be more a displya issue than a perfomance one becasue gstat shows about 12mb/sec for the drives I have. If the hangup under load problems get fixed I think USB will be quite usable. John
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