From owner-freebsd-questions@FreeBSD.ORG Thu Jun 26 21:59:57 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 32FCB10656AC for ; Thu, 26 Jun 2008 21:59:57 +0000 (UTC) (envelope-from deceased@webmail.vulcano.lt) Received: from mh.zebra.lt (mailhub.zebra.lt [212.59.31.77]) by mx1.freebsd.org (Postfix) with ESMTP id 9E7B98FC2E for ; Thu, 26 Jun 2008 21:59:56 +0000 (UTC) (envelope-from deceased@webmail.vulcano.lt) Received: from localhost (localhost [127.0.0.1]) by mh.zebra.lt (Postfix) with ESMTP id 1C6462352A3 for ; Fri, 27 Jun 2008 00:28:14 +0300 (EEST) X-Virus-Scanned: amavisd-new at takas.lt Received: from mh.zebra.lt ([127.0.0.1]) by localhost (ispmailfe124.internal.takas.lt [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id W4gWStuRHK2E for ; Fri, 27 Jun 2008 00:28:13 +0300 (EEST) Received: from mailhub.zebra.lt (unknown [192.168.3.105]) by mh.zebra.lt (Postfix) with ESMTP id CFD4E235207 for ; Fri, 27 Jun 2008 00:28:13 +0300 (EEST) Received: from localhost (localhost [127.0.0.1]) by mailhub.zebra.lt (Postfix) with ESMTP id B828D4660E for ; Fri, 27 Jun 2008 00:28:17 +0300 (EEST) X-Virus-Scanned: amavisd-new at takas.lt Received: from mailhub.zebra.lt ([127.0.0.1]) by localhost (ispmailfe105.internal.takas.lt [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DgX7t9XllTC4 for ; Fri, 27 Jun 2008 00:28:17 +0300 (EEST) Received: from [192.168.15.3] (78-62-19-17.static.zebra.lt [78.62.19.17]) by mailhub.zebra.lt (Postfix) with ESMTP id 1A762465CD for ; Fri, 27 Jun 2008 00:28:17 +0300 (EEST) Message-ID: <486409ED.7090603@webmail.vulcano.lt> Date: Fri, 27 Jun 2008 00:28:13 +0300 From: Deceased User-Agent: Thunderbird 2.0.0.14 (Windows/20080421) MIME-Version: 1.0 To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Intel SATA RAID SRCS16 performance 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: Thu, 26 Jun 2008 21:59:57 -0000 Hi, this week I got server with "Intel(R) RAID Controller SRCS16" 8 port SATA RAID controller, which needed to be reinstalled. After backing all data and reinstall, I noticed that writing to logical drives almost never exceeds 7000000 bytes/sec. Testing with dd : dd if=/dev/zero of=/usr/test.dat bs=1M count=1000 changing "bs" does not show any changes. Though read perfmormance is normal : about 55000000 bytes/sec, testing with dd : dd if=/dev/amrd0s1f of=/dev/null bs=1M count=1000 I get same results no matter what drive configuration is RAID1, RAID0, JBOD Same drives connected to motherboard SATA "raid" ports give me : # dd if=/dev/zero of=/mirror0/data.test bs=1M count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 19.018282 secs (55135158 bytes/sec) and # dd if=/dev/ar0s1d of=/dev/null bs=1M count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 15.036276 secs (69736416 bytes/sec) updating to RELENG_7 gave no results. # uname -a FreeBSD 7.0-STABLE FreeBSD 7.0-STABLE #0: Wed Jun 25 17:09:28 EEST 2008 root@:/usr/obj/usr/src/sys/contestus i386 So I guess that there is a problem with the controller and driver Testing with Linux Debian lenny gives me better results : ~32MB/s on controller RAID drives. Any ideas ? Thanks in advance. Output from dmesg : amr0: mem 0xff900000-0xff90ffff irq 21 at device 0.0 on pci6 amr0: [ITHREAD] amr0: Firmware 713S, BIOS G401, 64MB RAM PS.: updating firmware didn't help