From owner-freebsd-isp Sun Oct 5 13:37:49 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id NAA08147 for isp-outgoing; Sun, 5 Oct 1997 13:37:49 -0700 (PDT) Received: from daisy.capecod.net (poca39.capecod.net [205.230.13.39]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id NAA08138 for ; Sun, 5 Oct 1997 13:37:42 -0700 (PDT) Received: (from crtb@localhost) by daisy.capecod.net (8.8.5/8.8.5) id QAA00299; Sun, 5 Oct 1997 16:37:19 -0400 (EDT) Date: Sun, 5 Oct 1997 16:37:19 -0400 (EDT) From: Chuck Message-Id: <199710052037.QAA00299@daisy.capecod.net> To: nguyenpk@kuci.org, regnauld@deepo.prosa.dk Subject: Re: Tape Backup Cc: freebsd-isp@FreeBSD.ORG Sender: owner-freebsd-isp@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Khanh Nguyen writes: > > Does FBSD-2.2.2-REL support Hewlett Packard Colorado T3000 tape > > backup devices? If so, has anyone configured the kernel to use this? And > > if yes, can you send me the copy of the kernel config? > We're talking about the Travan SCSI HP/Colorado, right ? > There was some talk about this drive some time ago, and IIRC, > it has a problem with tape locking or something like it (i.e.: > the Travan doesn't support it, and any operations to access the > drive fail miserably). Last time I checked the archives, no > no patch is available. Maybe check the Linux code (don't know > if they support it). Alas, as I found out, non-SCSI tapes of all stripes remain unsupported under FreeBSD-2.2.2 :-( So I forked over 3 bills and bought a TR-4, installed it as /dev/st0, and bingo, it goes like a champ, around 500KB/second! Alas, over an ethernet from another FreeBSD 2.2.2 system using dump, it hiccuped continuously, getting just about 50KB/second. Is there any fix for that, like perhaps a humongous buffer? I figured, since the average data rate was 50KB/sec., and the hiccups averaged 4 seconds, I was buffering about 200KB. Can I buffer say, 10MB? > -[ Philippe Regnauld / Systems Administrator / regnauld@deepo.prosa.dk ]- > -[ Location.: +55.4N +11.3E PGP Key: finger regnauld@hotel.prosa.dk ]- Chuck Bacon -- crtb@capecod.net ABHOR SECRECY -- DEFEND PRIVACY