Date: Tue, 19 Aug 2008 08:43:19 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Jeffrey Goldberg <jeffrey@goldmark.org> Cc: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, "Jason C. Wells" <jcw@highperformance.net>, freebsd general questions <freebsd-questions@freebsd.org> Subject: Re: USB Drive Reliability Message-ID: <alpine.BSF.1.10.0808190838050.77198@wonkity.com> In-Reply-To: <37D65ECB-A87E-4949-ABF8-33249DA31D80@goldmark.org> References: <48A85276.7070306@highperformance.net> <20080818000858.D21615@wojtek.tensor.gdynia.pl> <48A8C40E.2060802@highperformance.net> <37D65ECB-A87E-4949-ABF8-33249DA31D80@goldmark.org>
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On Mon, 18 Aug 2008, Jeffrey Goldberg wrote: > I have one system (7.0) which becomes extremely unstable if I have a USB > drive connected. I usually get a system crash in 10 to 30 minutes after > mounting the USB drive. It has never crashed without the USB drive attached, > and it has never gone for more than three days with it attached. Usually the > failure is much sooner. This was with 7.0-RELEASE. I haven't checked since > I've moved to 7-STABLE. > > I have another system (identical software, different hardware) which is solid > as a rock with the identical USB drive attached. > > Unfortunately, the crashing system is a small form machine and there is no > way to put in a different USB controller. The USB drive was for backups, > which I now do over the network to the machine that is working just fine. That might indicate a cable problem, even just being too long. A line-powered hub added between a problematic USB card reader and computer fixed an unreliable situation here. -Warren Block * Rapid City, South Dakota USA
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