From owner-freebsd-fs@FreeBSD.ORG Fri Dec 2 14:17:18 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 32BB510656A8 for ; Fri, 2 Dec 2011 14:17:18 +0000 (UTC) (envelope-from mattblists@icritical.com) Received: from mail1.icritical.com (mail1.icritical.com [93.95.13.41]) by mx1.freebsd.org (Postfix) with SMTP id 8021B8FC13 for ; Fri, 2 Dec 2011 14:17:17 +0000 (UTC) Received: (qmail 28669 invoked from network); 2 Dec 2011 13:50:33 -0000 Received: from localhost (127.0.0.1) by mail1.icritical.com with SMTP; 2 Dec 2011 13:50:33 -0000 Received: (qmail 28662 invoked by uid 599); 2 Dec 2011 13:50:32 -0000 Received: from unknown (HELO icritical.com) (212.57.254.146) by mail1.icritical.com (qpsmtpd/0.28) with ESMTP; Fri, 02 Dec 2011 13:50:32 +0000 Message-ID: <4ED8D7A5.7090700@icritical.com> Date: Fri, 02 Dec 2011 13:50:29 +0000 From: Matt Burke User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.15) Gecko/20110403 Thunderbird/3.1.9 MIME-Version: 1.0 To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 02 Dec 2011 13:50:29.0604 (UTC) FILETIME=[5A592A40:01CCB0F9] X-Virus-Scanned: by iCritical at mail1.icritical.com Subject: Monitoring ZFS IO 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: Fri, 02 Dec 2011 14:17:18 -0000 Can someone enlighten me as to how to get 'iostat -Id' or 'iostat -Idx' style counters for zpools? I've read through the man pages, but all I can see is 'zpool iostat' which gives values which appear to be averaged over an unspecified time period. With a 30-disk zpool, I can't fathom out how to get any meaningful data from the individual disk stats, and keeping a daemon running 'zpool iostat N' just to parse its output seems hugely inefficient and hacky... Thanks. -- The information contained in this message is confidential and is intended for the addressee only. If you have received this message in error or there are any problems please notify the originator immediately. The unauthorised use, disclosure, copying or alteration of this message is strictly forbidden. Critical Software Ltd. reserves the right to monitor and record e-mail messages sent to and from this address for the purposes of investigating or detecting any unauthorised use of its system and ensuring its effective operation. Critical Software Ltd. registered in England, 04909220. Registered Office: IC2, Keele Science Park, Keele, Staffordshire, ST5 5NH. ------------------------------------------------------------ This message has been scanned for security threats by iCritical. For further information, please visit www.icritical.com ------------------------------------------------------------