From owner-freebsd-questions@FreeBSD.ORG Fri Jun 1 16:17:43 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9CB49106566C for ; Fri, 1 Jun 2012 16:17:43 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [89.206.35.99]) by mx1.freebsd.org (Postfix) with ESMTP id C3A8A8FC18 for ; Fri, 1 Jun 2012 16:17:42 +0000 (UTC) Received: from wojtek.tensor.gdynia.pl (localhost [127.0.0.1]) by wojtek.tensor.gdynia.pl (8.14.5/8.14.5) with ESMTP id q51GHcXY004495; Fri, 1 Jun 2012 18:17:39 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.5/8.14.5/Submit) with ESMTP id q51GHcGr004492; Fri, 1 Jun 2012 18:17:38 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Fri, 1 Jun 2012 18:17:38 +0200 (CEST) From: Wojciech Puchar To: Oscar Hodgson In-Reply-To: Message-ID: References: <20120601052309.GA32942@pcjas.obspm.fr> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="2456600518-337710135-1338567437=:4297" Content-ID: X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.2.7 (wojtek.tensor.gdynia.pl [127.0.0.1]); Fri, 01 Jun 2012 18:17:39 +0200 (CEST) Cc: Albert Shih , freebsd-questions@freebsd.org Subject: Re: Anyone using freebsd ZFS for large storage servers? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jun 2012 16:17:43 -0000 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --2456600518-337710135-1338567437=:4297 Content-Type: TEXT/PLAIN; CHARSET=ISO-8859-15; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: > On Fri, Jun 1, 2012 at 1:23 AM, Albert Shih wrote: >> I've Dell R610 + 48 Go Ram, 2x 6 core + 4 * MD1200 (36*3T + 12*2T) >> >> [root@filer ~]# zpool list >> NAME     SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT >> filer    119T  35,4T  83,9T    29%  1.00x  ONLINE  - >> [root@filer ~]# >> >> Work very fine (I can't say I've long experience because the server is up >> since just 4 months). >> >> The ZFS is very good, easy to manage, very fast. i dare not to agree about "very fast". very fast is relative term. how did you configured your storage? trivial test: make 10 100GB files (so none fits in RAM) by for x in 0 1 2 3 4 5 6 7 8 9;do ( dd if=/dev/zero of=testfile$x bs=1m count=100k &) ;done measure time needed for it to finish (all dd processes exist) then install /usr/ports/benchmark/randomio and do some tests of random reads on that files. and final test - 10 randomio in parallel with 10 threads each, one per every file. then sum up results (IOPS) and divide by amount of disks you have. then decide if is it fast or slow :) >> They're two default IMHO : >> >>        Eat lot of Ram can be controlled by settings in loader.conf. --2456600518-337710135-1338567437=:4297--