Date: Wed, 20 Sep 2006 09:26:10 -0500 From: Todd Denniston <Todd.Denniston@ssa.crane.navy.mil> To: Steffen Kaiser <skadaptec@smail.inf.fh-bonn-rhein-sieg.de> Cc: aic7xxx@freebsd.org Subject: Re: How to set transfer speed anually Message-ID: <45114F82.8090201@ssa.crane.navy.mil> In-Reply-To: <Pine.LNX.4.64.0609151247330.7938@pc-2m63.inf.fh-bonn-rhein-sieg.de> References: <Pine.LNX.4.64.0609151247330.7938@pc-2m63.inf.fh-bonn-rhein-sieg.de>
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Steffen Kaiser wrote: > Hello, > > I'm using the aic79xx driver for an onboard Adeptec Ultra 320 controller > with Linux kernel v2.6.17.10. > > When there are more than two devices on the bus, which running > simultaneuously, I get "device overrun" errors. For debugging I wanted > to throttle the speed of the bus, but haven't found no way to do so. > > Is it possible assign the bus speed for the driver? > Assuming it is like the Adaptec 3960D Ultra160 SCSI adapter, Yes. Reboot the box Catch the SCSI bios booting and press CTRL-a use its menus to get to controlling the buses and you can set the speed there for each SCSI id individually. (I would try to give more details but the box with the card is working as a server right now.) -- Todd Denniston Crane Division, Naval Surface Warfare Center (NSWC Crane) Harnessing the Power of Technology for the Warfighter
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