From owner-freebsd-questions Sat May 29 20:17:54 1999 Delivered-To: freebsd-questions@freebsd.org Received: from lsmls02.we.mediaone.net (lsmls02.we.mediaone.net [24.130.1.15]) by hub.freebsd.org (Postfix) with ESMTP id 431B714D5F for ; Sat, 29 May 1999 20:17:51 -0700 (PDT) (envelope-from gummibear@we.mediaone.net) Received: from gummibear.we.mediaone.net (we-24-130-60-137.we.mediaone.net [24.130.60.137]) by lsmls02.we.mediaone.net (8.8.7/8.8.7) with SMTP id UAA05870 for ; Sat, 29 May 1999 20:17:49 -0700 (PDT) From: gummibear@we.mediaone.net Message-Id: <3.0.6.32.19990529201736.007a4bb0@we.mediaone.net> X-Sender: gummibear@we.mediaone.net X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Sat, 29 May 1999 20:17:36 -0700 To: questions@freebsd.org Subject: RAID: How does it work? (clueless about RAID) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Okay, this might be one of those really dumb questions. I'm sure the answer can be found somewhere, although I'm not sure where really to start looking, but here it goes. I know what RAID stands for, and I sort of know what it does. Where I'm unclear is if it's a hardware thing, or a softare thing that controls it all. At work we have and AS/400 with RAID 5. We lost a disk, replaced it, and then the OS rebuilt it. What I've understood until now, RAID 5 is a multiple disk array which acts like one big disk, and the data is scattered throughout the disks. Am I right, or completely wrong? Okay, say if I was going to build a mega WebServer using FreeBSD and I wanted to utilize RAID 5 for data protection and stuff. I'm sure first I'd need a SCSI adapter. Does it have to be a special one? When I install FreeBSD how does it know that I'm using RAID 5? Is that something that I set in the SCSI BIOS or something. I really need a RAID tutorial, because I'm making things move and groove at my workplace. We'll be needing a WebServer soon, and I want to make sure it's stable and that my data is safe. Also, any suggestions on good tape backup drives? Joey ================================================================ Joey Bear Garcia Downey, CA gummibear@mediaone.net ================================================================ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message