From owner-freebsd-fs@FreeBSD.ORG Wed Aug 29 03:39:58 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B4A55106564A for ; Wed, 29 Aug 2012 03:39:58 +0000 (UTC) (envelope-from prvs=1581c7f85d=greg.robinson@dsto.defence.gov.au) Received: from defence.gov.au (actmail.defence.gov.au [203.6.68.1]) by mx1.freebsd.org (Postfix) with ESMTP id 0794D8FC16 for ; Wed, 29 Aug 2012 03:39:57 +0000 (UTC) X-MimeOLE: Produced By Microsoft Exchange V6.5 x-titus-version: 3.0.65 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable x-protective-marking: VER=2005.6, NS=gov.au, SEC=UNCLASSIFIED, ORIGIN=greg.robinson@dsto.defence.gov.au x-tituslabs-classifications-30: Classification=UNCLASSIFIED; Precedence=ROUTINE; Privacy= ; Content-class: urn:content-classes:message Date: Wed, 29 Aug 2012 12:54:42 +0930 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Re: zvol + raidz issue? - a similar question [SEC=UNCLASSIFIED] Thread-Index: Ac2FldOWAMMDJYuTQtO/uDCNB9q9+Q== From: "Robinson, Greg" To: X-OriginalArrivalTime: 29 Aug 2012 03:24:42.0848 (UTC) FILETIME=[D4AF1E00:01CD8595] X-TM-AS-Product-Ver: SMEX-10.0.0.1412-6.800.1017-19146.001 X-TM-AS-Result: No--1.810100-0.000000-31 X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No Subject: Re: zvol + raidz issue? - a similar question [SEC=UNCLASSIFIED] 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: Wed, 29 Aug 2012 03:39:58 -0000 UNCLASSIFIED Hi, Along the lines on Niki's question, could someone explain the difference between the following zfs commands in terms of performance: zpool create -m /export fooz raidz da0 da1 da2 da3 da4 mkdir /export/home vs. zpool create fooz raidz da0 da1 da2 da3 da4 zfs create fooz/home (or in Niki's example): zfs create -b 128k fooz/home I think I'm in the same boat as Niki, seeing some performance issues with my setup... Greg. IMPORTANT: This email remains the property of the Department of Defence and is subject to the jurisdiction of section 70 of the Crimes Act 1914. If you have received this email in error, you are requested to contact the sender and delete the email.