From owner-freebsd-scsi Tue Jan 6 05:08:53 1998 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id FAA08741 for freebsd-scsi-outgoing; Tue, 6 Jan 1998 05:08:53 -0800 (PST) (envelope-from owner-freebsd-scsi) Received: from verdi.nethelp.no (verdi.nethelp.no [195.1.171.130]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id FAA08733 for ; Tue, 6 Jan 1998 05:08:47 -0800 (PST) (envelope-from sthaug@nethelp.no) From: sthaug@nethelp.no Received: (qmail 1467 invoked by uid 1001); 6 Jan 1998 13:08:39 +0000 (GMT) To: dag-erli@ifi.uio.no Cc: scsi@FreeBSD.ORG Subject: Re: Tecmar NS8 In-Reply-To: Your message of "05 Jan 1998 11:34:52 +0100" References: X-Mailer: Mew version 1.05+ on Emacs 19.28.2 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Date: Tue, 06 Jan 1998 14:08:39 +0100 Message-ID: <1465.884092119@verdi.nethelp.no> Sender: owner-freebsd-scsi@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Does anyone have any experience with the Tecmar NS8 Travan streamer > (or other SCSI Travan streamers)? How reliable is it, and can it > really sustain a transfer rate of 1.2 MBps? Reliability seems okay so far, but it's a bit early to tell - I've only had mine for a couple of weeks, and only used it for one full backup. With firmware version 6.11 (available from the Tecmar Web site) you can even get it to do WRITE FILEMARKS. As for a sustained transfer rate of 1.2 Mbyte/s - forget it. The raw (uncompressed) max data rate of this drive is 600 kbyte/s. The 1.2 Mbyte/s figure assumes 2:1 compression, which is rather doubtful for real-life data on a sustained basis. I've had one filesystem reach 1 Mbyte/s though (as reported by dump). Steinar Haug, Nethelp consulting, sthaug@nethelp.no