From owner-freebsd-hackers Wed Feb 11 17:23:32 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA00537 for hackers-outgoing; Wed, 11 Feb 1998 17:23:32 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from fly.HiWAAY.net (root@fly.HiWAAY.net [208.147.154.56]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA00479 for ; Wed, 11 Feb 1998 17:23:15 -0800 (PST) (envelope-from dkelly@nospam.hiwaay.net) Received: from nospam.hiwaay.net (tnt1-117.HiWAAY.net [208.147.147.117]) by fly.HiWAAY.net (8.8.8/8.8.6) with ESMTP id TAA29832; Wed, 11 Feb 1998 19:23:04 -0600 (CST) Received: from localhost (localhost [127.0.0.1]) by nospam.hiwaay.net (8.8.8/8.8.4) with ESMTP id SAA08885; Wed, 11 Feb 1998 18:24:49 -0600 (CST) Message-Id: <199802120024.SAA08885@nospam.hiwaay.net> X-Mailer: exmh version 2.0.1 12/23/97 To: Mike Smith cc: David Kelly , hackers@FreeBSD.ORG From: David Kelly Subject: Re: Large system backups; recommendations for devices & strategies? In-reply-to: Message from Mike Smith of "Wed, 11 Feb 1998 09:50:01 PST." <199802111750.JAA00661@dingo.cdrom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 11 Feb 1998 18:24:48 -0600 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > All one filesystem? Multiple systems? > > Multiple systems. That makes multiple tape drives a more viable solution. > > Others have suggested jukebox solutions but you might consider 5 or 10 > > (or 2 or 3) lower cost (than DLT or AIT) Exabyte 8505's which can put an > > honest 4.8G (or more with compression) on a cheap tape. > > I had considered this. How would this compare cost-wise with an > EXB8505-based changer? I don't know the price of an Exabyte changer right now, but 8505's are somewhere between $1000 and $1500 new. There is an 8700 with similar specs, external only, its top loading, going for about $800 new. Putting a tape drive on each system might make your users happy, don't know what the systems are normally doing. Loading a tape in each may be quite a hassle if all the systems are not close by. > I appreciate this. The big downside with multiple drives is feeding > the rotten things, and the slightly more grubby software involved. Grubby software? Schedule dump with cron. Don't try to bite off more than a tape per night per tape drive. If somebody forgets to put a tape in the drive then you'll be emailed. Heck, without the right options you'll get emailed anyhow. > > The CD-R people are pushing their hardware for backups too. In volume a > > 600MB CD-R disk is approaching $1. Don't think that's a viable solution > > for you. > > Not unless there's a changer that behaves enough like a tape drive, no. Don't think so for FreeBSD but the Mac and PC backup people are pushing it by supporting it in backup programs such as Retrospect. -- David Kelly N4HHE, dkelly@nospam.hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe hackers" in the body of the message