From owner-freebsd-scsi Sun Mar 11 21:18:32 2001 Delivered-To: freebsd-scsi@freebsd.org Received: from cs4.cs.ait.ac.th (cs4.cs.ait.ac.th [192.41.170.16]) by hub.freebsd.org (Postfix) with ESMTP id 7B6CB37B719 for ; Sun, 11 Mar 2001 21:18:28 -0800 (PST) (envelope-from on@cs.ait.ac.th) Received: from banyan.cs.ait.ac.th (on@banyan.cs.ait.ac.th [192.41.170.5]) by cs4.cs.ait.ac.th (8.9.3/8.9.3) with ESMTP id MAA03364; Mon, 12 Mar 2001 12:18:11 +0700 (GMT+0700) Received: (from on@localhost) by banyan.cs.ait.ac.th (8.8.5/8.8.5) id MAA09550; Mon, 12 Mar 2001 12:18:17 +0700 (ICT) Date: Mon, 12 Mar 2001 12:18:17 +0700 (ICT) Message-Id: <200103120518.MAA09550@banyan.cs.ait.ac.th> X-Authentication-Warning: banyan.cs.ait.ac.th: on set sender to on@banyan.cs.ait.ac.th using -f From: Olivier Nicole To: gemorga2@vt.edu Cc: mjacob@feral.com, freebsd-scsi@FreeBSD.ORG In-reply-to: <3AAC0E24.30330.73F53E@localhost> (message from George Morgan on Sun, 11 Mar 2001 23:45:40 -0500) Subject: Re: SCSI speed with SLR100 tape drive References: <200103120325.KAA09448@banyan.cs.ait.ac.th> <3AAC0E24.30330.73F53E@localhost> Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org >Hmm, according to the Tandberg website, the SLR100 supports up to >Ultra2-Wide SCSI which from what I understand, the Ultra2 narrow bus OK, my mistake. I thought I read somewhere it supported Ultra 160. But anyway, why Symbios bios (at PC boot) says 80MB/s while FreeBSD only says 40MB/s? From other discussions, I understand that acheiving a good speed on the SCSI interface is critical to keep the drive streaming (transfer to the tape is about 40 Mbit/s). Olivier To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message