From owner-freebsd-questions@FreeBSD.ORG Mon Jun 14 18:40:08 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0C84216A4D2 for ; Mon, 14 Jun 2004 18:40:08 +0000 (GMT) Received: from web53302.mail.yahoo.com (web53302.mail.yahoo.com [206.190.39.231]) by mx1.FreeBSD.org (Postfix) with SMTP id 2DE4843D48 for ; Mon, 14 Jun 2004 18:40:07 +0000 (GMT) (envelope-from non_secure@yahoo.com) Message-ID: <20040614183917.15638.qmail@web53302.mail.yahoo.com> Received: from [24.94.23.114] by web53302.mail.yahoo.com via HTTP; Mon, 14 Jun 2004 11:39:16 PDT Date: Mon, 14 Jun 2004 11:39:16 -0700 (PDT) From: Joe Schmoe To: questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: software equivs for netapps snapmirror / snapshots in FreeBSD fileserver ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Jun 2004 18:40:08 -0000 I am very intrigued by some of the features that Network Appliance (NetApp) has for its network attached arrays. Chiefly: snapmirror http://www.netapp.com/products/filer/snapmirror.html which allows real time replication of a filesystem(s) over a WAN - and saves bandwidth by transferring changes only. snapshot copies http://www.netapp.com/products/snapshot.html which provides point-in-time snapshots of a filesystem(s) that can be returned to at any time - it keeps track of changes only (after the original snapshot data is created) So ... if I want to use some features like this on my home fileserver (replicating to a friends fileserver over T1) ... do I have any hope of achieving these features with standard UNIX tools and scripts, or do I really need to buy things made by NetApp (or their competitors) to get features like this ? --------------------------------- Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger