From owner-freebsd-fs@FreeBSD.ORG Mon Oct 10 14:33:16 2011 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 009A0106566C for ; Mon, 10 Oct 2011 14:33:16 +0000 (UTC) (envelope-from patpro@patpro.net) Received: from rack.patpro.net (rack.patpro.net [193.30.227.216]) by mx1.freebsd.org (Postfix) with ESMTP id B7EEF8FC13 for ; Mon, 10 Oct 2011 14:33:15 +0000 (UTC) Received: from rack.patpro.net (localhost [127.0.0.1]) by rack.patpro.net (Postfix) with ESMTP id 753581CC038 for ; Mon, 10 Oct 2011 16:33:13 +0200 (CEST) X-Virus-Scanned: amavisd-new at patpro.net Received: from amavis-at-patpro.net ([127.0.0.1]) by rack.patpro.net (rack.patpro.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c5P3gMPEvCt1 for ; Mon, 10 Oct 2011 16:33:12 +0200 (CEST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by rack.patpro.net (Postfix) with ESMTP for ; Mon, 10 Oct 2011 16:33:12 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) From: Patrick Proniewski In-Reply-To: <20110915120007.F41FF10656E1@hub.freebsd.org> Date: Mon, 10 Oct 2011 16:33:11 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <4B8C8026-1E12-4C32-88E3-9B34A3E58A91@patpro.net> References: <20110915120007.F41FF10656E1@hub.freebsd.org> To: freebsd-fs@freebsd.org X-Mailer: Apple Mail (2.1084) Subject: measuring IO asynchronously X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Oct 2011 14:33:16 -0000 Hello, I would like to monitor the storage on various FreeBSD servers, = especially I/O per seconds. Is there any way to gather statistics about = I/O via asynchronous request, lets say, for example, using a munin = plugin? `iostat -w 1` and `zpool iostat tank 1` are interesting, but not useable = asynchronously. regards, patpro=