Date: Thu, 04 Jan 1996 17:23:57 -0800 From: "Jordan K. Hubbard" <jkh@time.cdrom.com> To: Ben Jackson <bjj@sequent.com> Cc: "Amancio Hasty Jr." <hasty@rah.star-gate.com>, hackers@FreeBSD.ORG Subject: Re: buggy 2940 driver? Message-ID: <2076.820805037@time.cdrom.com> In-Reply-To: Your message of "Thu, 04 Jan 1996 16:47:23 PST." <199601050047.QAA02879@eng4.sequent.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! Jordanhome | help
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