From owner-freebsd-questions Mon Sep 10 11:33:42 2001 Delivered-To: freebsd-questions@freebsd.org Received: from relay.ioffe.rssi.ru (relay.ioffe.rssi.ru [194.85.224.33]) by hub.freebsd.org (Postfix) with ESMTP id 51FD137B40A; Mon, 10 Sep 2001 11:33:36 -0700 (PDT) Received: from astro.ioffe.rssi.ru (astro.ioffe.rssi.ru [194.85.229.130]) by relay.ioffe.rssi.ru (8.9.1/8.9.1) with ESMTP id WAA17544; Mon, 10 Sep 2001 22:33:34 +0400 (MSD) Received: by astro.ioffe.rssi.ru (8.9.3/Clnt-2.14-AS-eef) id WAA23230; Mon, 10 Sep 2001 22:32:59 +0400 (MSD) Date: Mon, 10 Sep 2001 22:32:59 +0400 (MSD) From: Alexey Koptsevich To: freebsd-scsi@freebsd.org, freebsd-questions@freebsd.org Subject: are backplanes needed for IDE RAID? Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello, We are buying 3ware 7810 IDE RAID controller (supports hot-swap) and thinking now about disk enclosures. There are some on the market (e.g., backplane http://www.synetic.net/Synetic-Products/2-to-3-IDE.html) but I wonder do we need them? As far as I understand, some power switching is necessary for hot swap, but do backplanes provide any advantage against simple mobile racks with disk power switcher? Also, the backplane cited above has two power connectors, are they necessary for hot-swappable power supplies or not? Thanks a lot, Alex PS Please cc: me your reply. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message