From owner-freebsd-hardware Fri Aug 2 15:27:04 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id PAA06584 for hardware-outgoing; Fri, 2 Aug 1996 15:27:04 -0700 (PDT) Received: from zed.ludd.luth.se (root@zed.ludd.luth.se [130.240.16.33]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id PAA06573 for ; Fri, 2 Aug 1996 15:27:01 -0700 (PDT) Received: from father.ludd.luth.se (father.ludd.luth.se [130.240.16.18]) by zed.ludd.luth.se (8.7.5/8.7.2) with ESMTP id AAA04926; Sat, 3 Aug 1996 00:26:52 +0200 Received: (pantzer@localhost) by father.ludd.luth.se (8.6.11/8.6.11) id AAA08835; Sat, 3 Aug 1996 00:26:51 +0200 Date: Sat, 3 Aug 1996 00:26:51 +0200 (MET DST) From: Mattias Pantzare To: Jim Shankland cc: freebsd-hardware@freebsd.org Subject: Re: h/w requirements for CD-R writing? In-Reply-To: <199608022009.NAA14408@saguaro.flyingfox.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Fri, 2 Aug 1996, Jim Shankland wrote: > Is a single NCR53C810 SCSI host adapter sufficient for CD-ROM writing, > or will I need a second SCSI host adapter, so that one reads the > disk while the other writes the CD-ROM? I understand that there are > real-time constraints when writing CD-R's, but on the other hand, > they're only writing at 300 KB/s, and they have 1 or 2 MB of cache .... That is sufficient!! I have done CD writing on a 486SX with a 1542 ISA SCSI card, a 5 1/4 SCSI drive and HP 4020i writing at 300KB/s. No problem... Remember, this is SCSI, not IDE.