Date: Thu, 04 Jan 1996 17:55:43 -0800 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: "Jordan K. Hubbard" <jkh@time.cdrom.com> Cc: Ben Jackson <bjj@sequent.com>, "Amancio Hasty Jr." <hasty@rah.star-gate.com>, hackers@FreeBSD.ORG Subject: Re: buggy 2940 driver? Message-ID: <199601050155.RAA13896@freefall.freebsd.org> In-Reply-To: Your message of "Thu, 04 Jan 1996 17:23:57 PST." <2076.820805037@time.cdrom.com>
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>> I have a 2940 connected to (among other things) a QUPD1800S. During >> extended periods of heavy read activity (ie backups) the device and/or >> card will eventually hang, leaving the machine hung (there's a swap >> partition on that disk). The tape drive is on another SCSI controller, > >Is this one of the older 2940s? Do you have transfers set to 10Mb/sec >in the SCSI device configuration setup for the PD1800 drive? > >I've been told that the older controllers actually run *faster* than >the specified clock rate at the `top end' in order to work around a >race condition that they later fixed. Most drives don't mind the >overclocking, but some Quantums apparently have conniptions. You >might try fiddling with the transfer speed! > > Jordan This only affected the 1080S as far as I know. -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================
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