Date: Fri, 22 Oct 2004 16:08:06 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Scott Long <scottl@freebsd.org> Cc: Garance A Drosihn <drosih@rpi.edu> Subject: Re: Annoying SCSI waiting... Message-ID: <20041022210806.GE52593@dan.emsphone.com> In-Reply-To: <41796D6D.7000108@freebsd.org> References: <417960C2.8040007@freebsd.org> <20041022194008.GA23778@odin.ac.hmc.edu> <41796396.5070804@freebsd.org> <p06110423bd9f1b6312ed@[128.113.24.47]> <41796D6D.7000108@freebsd.org>
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In the last episode (Oct 22), Scott Long said: > For just about everyone, a value of 2 seconds or less is just fine. > For those with tape drives, changers, and (less likely) cdroms, a > long delay after reset is still quite necessary. There are two knobs > to adjust this, and I'd like GENERIC to remain compatible. It's 15 > seconds, not 2 minutes. You get a longer delay that that just trying > to set up the inital page tables on a large memory machine! I don't think the scsi code even does a bus reset, does it? That should have already been done by the card BIOS during bootup, if at all. I have have been setting it to 1s for at least 5 years, on systems with SCSI disks, CD-Rs, autoloaders, and tape drives (dds and dlt) with no ill effects. -- Dan Nelson dnelson@allantgroup.com
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