Date: Thu, 25 Jun 1998 10:11:13 -0700 (PDT) From: Tom <tom@uniserve.com> To: Burkard Meyendriesch <bm@malepartus.de> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: SCSI; tagged command queuing Message-ID: <Pine.BSF.3.96.980625100857.22638A-100000@shell.uniserve.ca> In-Reply-To: <199806251229.OAA22711@Reineke.Malepartus.de>
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On Thu, 25 Jun 1998, Burkard Meyendriesch wrote: > Hi all, > > I'm running FreeBSD (2.2-stable) on an ASUS-Motherboard (K6/233Mhz) with > onboard SCSI controller "Adaptec aic7880 Ultra SCSI host adapter" driven > by "ahc0" device driver. I'm operating a couple of SCSI devices (tapes, > disks, CDs) on the SCSI bus. My experience is that using a tape slows > down the disk I/O significantly. So I decided to use "tagged command Tagged commands are only useful for muliple IO operations to the same device. This may be useful for you, as I expect that tape data is being read or written from disk. > The kernel compiles smoothly and works well. But the "tagged command > queuing" doesn't seem to work :-( How do you know that? Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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