From owner-freebsd-hardware Wed Mar 18 01:29:04 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id BAA03623 for freebsd-hardware-outgoing; Wed, 18 Mar 1998 01:29:04 -0800 (PST) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from palrel3.hp.com (palrel3.hp.com [156.153.255.226]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id BAA03589 for ; Wed, 18 Mar 1998 01:28:59 -0800 (PST) (envelope-from darrylo@mina.sr.hp.com) Received: from srmail.sr.hp.com (srmail.sr.hp.com [15.4.45.14]) by palrel3.hp.com (8.8.5/8.8.5tis) with ESMTP id BAA19986 for ; Wed, 18 Mar 1998 01:28:58 -0800 (PST) Received: from mina.sr.hp.com by srmail.sr.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA050733337; Wed, 18 Mar 1998 01:28:58 -0800 Received: from mina.sr.hp.com by mina.sr.hp.com with SMTP (1.37.109.16/15.5+ECS 3.3) id AA014003337; Wed, 18 Mar 1998 01:28:57 -0800 Message-Id: <199803180928.AA014003337@mina.sr.hp.com> To: freebsd-hardware@FreeBSD.ORG Subject: Re: CD-R and Scanner recomendations for CD archiving of records? Reply-To: darrylo@sr.hp.com In-Reply-To: Your message of "Tue, 17 Mar 1998 22:15:08 +0100." <350EE7DC.78D6@xs4all.nl> Mime-Version: 1.0 (generated by tm-edit 7.106) Content-Type: text/plain; charset=US-ASCII Date: Wed, 18 Mar 1998 01:28:56 -0800 From: Darryl Okahata Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Rob Schofield wrote: > The system basically should not be doing ANYTHING other than swap, so > knock out EVERYTHING before you start. > > You need to have SIGNIFICANTLY more buffer space than is recommended > (2-3X), and you are far better building an image on a hard disk rather > than copy CD-CD. A bucket load of unecessarily free RAM helps too. > > Hard disks really need to to be in large block mode, or multi-sector; > 7,200 RPM drives seem to be almost obligatory. DISABLE read cache on > SCSI drives. Adjacent SCSI IDs are a good idea for the two drives > involved in the read and write, with the Write drive at SCSI ID 6 > (highest bus negotiation priority). While these recommendations don't hurt, they're not always necessary. Joerg Wunsch (joerg_wunsch@uriah.heep.sax.de) has put a lot of work into getting CDRs working well with FreeBSD. A few months back, he mentioned to me that he's burning CDROMs on a system that runs X11 and is being used as his company's lpd filter, running ghostscript rendering jobs. He did need 32MB RAM, though. I occasionally burn CDROMs on an ancient 16MB 386 (25MHz). It's running FreeBSD 2.2-960612-SNAP (yeah, it works, and so I'm too lazy to upgrade it). It's also using as ISA-based 1542C SCSI controller (slow) with a slow hard disk. I only have problems with it if I try to burn more than 2-3 CDRs in a row (the old drive that I'm using appears to overheat and the burn fails). [ The old drive I'm using (an HP4020i, which is, I believe, a renamed Phillips drive) is only rated to 85deg.F. Yes, that's not a typo -- that's eighty-five degrees Fahrenheit. ;-( ] You don't need the latest high-performance hardware to burn CDROMs, although it does help to have a decent burner ;-). -- Darryl Okahata Internet: darrylo@sr.hp.com DISCLAIMER: this message is the author's personal opinion and does not constitute the support, opinion, or policy of Hewlett-Packard, or of the little green men that have been following him all day. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message