From owner-freebsd-stable Fri Oct 12 6:41:57 2001 Delivered-To: freebsd-stable@freebsd.org Received: from klima.physik.uni-mainz.de (klima.Physik.Uni-Mainz.DE [134.93.180.162]) by hub.freebsd.org (Postfix) with ESMTP id 44ACE37B403 for ; Fri, 12 Oct 2001 06:41:53 -0700 (PDT) Received: from klima.Physik.Uni-Mainz.DE (klima.Physik.Uni-Mainz.DE [134.93.180.162]) by klima.physik.uni-mainz.de (8.11.6/8.11.4) with ESMTP id f9CDfqm57066 for ; Fri, 12 Oct 2001 15:41:52 +0200 (CEST) (envelope-from ohartman@klima.physik.uni-mainz.de) Date: Fri, 12 Oct 2001 15:41:52 +0200 (CEST) From: "Hartmann, O." To: Subject: RAID controllers and dirprefs Message-ID: <20011012153730.J52936-100000@klima.physik.uni-mainz.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I followed with great interests the discussion and reports about the benefits of the new dirpref code in FBSD 4.4-STABLE. We have two machines equipted with AMI MegaRAID 1600 controllers, running a RAID level 5. Has anyone any kind of experiences of performance boost newfs-ing the partitions on professional RAID 5 based diskarrays? At the moment, I try to avoid the much extra work to do to backup all partitions and reformatting them and restoring afterwards the filesystems without knowing whether this gives the dramatic boost in performance as described by many others using normal harddrive techniques. Thanks Oliver -- MfG O. Hartmann ohartman@klima.physik.uni-mainz.de ---------------------------------------------------------------- IT-Administration des Institutes fuer Physik der Atmosphaere (IPA) ---------------------------------------------------------------- Johannes Gutenberg Universitaet Mainz Becherweg 21 55099 Mainz Tel: +496131/3924662 (Maschinenraum) Tel: +496131/3924144 FAX: +496131/3923532 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message