From owner-freebsd-questions@FreeBSD.ORG Thu Oct 20 15:50:28 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 9459F16A41F for ; Thu, 20 Oct 2005 15:50:28 +0000 (GMT) (envelope-from djp@polands.org) Received: from moab.polands.org (CPE-24-208-53-189.new.res.rr.com [24.208.53.189]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2781F43D5A for ; Thu, 20 Oct 2005 15:50:27 +0000 (GMT) (envelope-from djp@polands.org) Received: from jericho.polands.org ([172.16.1.35]) by moab.polands.org (8.13.1/8.13.1) with ESMTP id j9KFoP5c028901; Thu, 20 Oct 2005 10:50:25 -0500 (CDT) (envelope-from djp@polands.org) Received: from jericho.polands.org (localhost [127.0.0.1]) by jericho.polands.org (8.13.4/8.13.1) with ESMTP id j9KFoO5j013289; Thu, 20 Oct 2005 10:50:24 -0500 (CDT) (envelope-from djp@jericho.polands.org) Received: (from djp@localhost) by jericho.polands.org (8.13.4/8.13.1/Submit) id j9KFoOis013288; Thu, 20 Oct 2005 10:50:24 -0500 (CDT) (envelope-from djp) Date: Thu, 20 Oct 2005 10:50:24 -0500 From: Doug Poland To: user Message-ID: <20051020155023.GA3290@polands.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.11 Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD UFS2 snapshots, and math ... X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Oct 2005 15:50:28 -0000 On Thu, Oct 20, 2005 at 11:01:42AM -0400, user wrote: > > Finally, are there any snapshot diag tools at all ? Like, something that > reports snapshot sizes, percent of disk used for snapshots, and maybe even > a way for me to actually calculate what the percent change for time period > X is for a particular filsystem >? > I find sysutils/freebsd-snapshot quite useful, although it doesn't do everything you're asking for. Be advised there are issues with snapshots of large filesystems. http://www.freebsd.org/cgi/query-pr-summary.cgi?category=&severity=&priority=&class=&state=&sort=none&text=snapshot&responsible=&multitext=&originator=&release= My experience shows that multiple snapshots of large filesystems, >30GB, causes the system to become unresponsive when a snap is created. If I limit the snapshot to 1/per large FS, then often the machine hangs on attempted reboots. -- Regards, Doug