From owner-freebsd-hardware Thu Mar 8 2: 4: 7 2001 Delivered-To: freebsd-hardware@freebsd.org Received: from mother.ludd.luth.se (mother.ludd.luth.se [130.240.16.3]) by hub.freebsd.org (Postfix) with ESMTP id 2840537B719 for ; Thu, 8 Mar 2001 02:04:04 -0800 (PST) (envelope-from pb@ludd.luth.se) Received: from dexter.ludd.luth.se (dexter.ludd.luth.se [130.240.16.80]) by mother.ludd.luth.se (8.9.3+Sun/8.9.3) with ESMTP id LAA25632 for ; Thu, 8 Mar 2001 11:04:01 +0100 (MET) From: Peter B Received: (from pb@localhost) by dexter.ludd.luth.se (8.9.3+Sun/8.9.3) id LAA03267 for freebsd-hardware@freebsd.org; Thu, 8 Mar 2001 11:04:07 +0100 (MET) Message-Id: <200103081004.LAA03267@dexter.ludd.luth.se> Subject: UDMA/33 To: freebsd-hardware@freebsd.org Date: Thu, 8 Mar 2001 11:04:07 +0100 (MET) X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org How well does the CRC protection, and busmaster features of Ultra-ATA DMA/33 work..? Is the CPU utilisation on the same level as SCSI counterparts, nowadays? (I have used SCSI myself since day #1 :) If a DMA/33 transfer fails due bad CRC on transmission between host and disk. Will retransmission be handled by hardware or software to resend? How well is the CRC feature supported in FreeBSD..? /pb To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message