From owner-freebsd-performance@FreeBSD.ORG Thu Nov 17 18:49:40 2011 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 977231065674 for ; Thu, 17 Nov 2011 18:49:40 +0000 (UTC) (envelope-from list@sprymed.com) Received: from mail-bw0-f54.google.com (mail-bw0-f54.google.com [209.85.214.54]) by mx1.freebsd.org (Postfix) with ESMTP id 337BE8FC1D for ; Thu, 17 Nov 2011 18:49:39 +0000 (UTC) Received: by bkbzs8 with SMTP id zs8so3251250bkb.13 for ; Thu, 17 Nov 2011 10:49:39 -0800 (PST) MIME-Version: 1.0 Received: by 10.204.10.81 with SMTP id o17mr34648582bko.65.1321554409205; Thu, 17 Nov 2011 10:26:49 -0800 (PST) Received: by 10.205.83.206 with HTTP; Thu, 17 Nov 2011 10:26:49 -0800 (PST) Date: Thu, 17 Nov 2011 13:26:49 -0500 Message-ID: From: "list, mailing" To: freebsd-performance@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: ZFS Few Questions X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Nov 2011 18:49:40 -0000 Hello everyone I just had a few questions about ZFS. I normally use Hardware RAID 5. Question 1: With the ZFS snapshots what is the lost in drive space? Hard drives I have: 4 x 500 GB = 1.5T on RAID 5 I have see lots of videos like: http://www.youtube.com/watch?v=CN6iDzesEs0 Question 2: FreeBSD 9.0 installable on ZFS root? Question 3: Anyone Recommend for MySQL server? (Performance) Question 4: fsck used with when Server just turns off? (Fast or slower filesystem check when compared to UFS on HW RAID 5 ) Taking note of: "FreeBSD 9.0 adds support for lightweight journaling on top of softupdates(SU+J), which greatly reduces and need for background fsck, and uses NFS-style ACLs by default." Thanks for all your input on setting up a new FAMP box. -- Ben Adams http://www.SpryMed.com/