From owner-freebsd-scsi@freebsd.org Thu Sep 8 07:47:11 2016 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 69C9EBD13CF for ; Thu, 8 Sep 2016 07:47:11 +0000 (UTC) (envelope-from n.corvini@gmail.com) Received: from mail-it0-x231.google.com (mail-it0-x231.google.com [IPv6:2607:f8b0:4001:c0b::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 33981BA3 for ; Thu, 8 Sep 2016 07:47:11 +0000 (UTC) (envelope-from n.corvini@gmail.com) Received: by mail-it0-x231.google.com with SMTP id i184so242138455itf.1 for ; Thu, 08 Sep 2016 00:47:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=UwhL/5jMb4sCwL2HDNFBdceDUwyRVKU81vaE1xmk3UU=; b=0XnTv98syZTrYtNX4t2rC6WIxwplXwdGVJp4K94VCje3DjV9ii5bSwcLLejyzyvovP PFlCM6bKV4Nmp8ZIl9Maj0KmLQpnPIO+lwNSn04bkPvoDo93XcU9Bj7w1a1KiIicHXj4 Ln88Tw2bMZEAQK8ykW5LT71e7ICAducSXz4MDfT7eVDXhuUjVnqvA1rPaMQjFMQlyqsl HIs1TkEL83ykzDLsa9jJWRNvbuGoO5Wlql96WgJ0yt7zkhbRHhqqzDn3X7CKwsXkyfra 2enFtoO7TYCs1gTMzUFkaPYa1pHu+FEogSoKovNypU/QL8Hwx7D+5MtkVLKbV1BGntki b+Kg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=UwhL/5jMb4sCwL2HDNFBdceDUwyRVKU81vaE1xmk3UU=; b=G3ZhrMZ4YqPRJtwuEEAze/W+5BB6K5lLFw5awxreIxxJOZhsQd28wG2bKn6a01MV9N PPVt1qJzT4vP0Wyold5tzOYwFXR3I6aCLh1nCFGUWTYKxIJUrXzMOljQE2lNtegSu9WF a5VRUVHnFcKtLMb7FDcICvolu/h8Rsotu0uS8OqNeaVlfl83Dp15oPwGkXX/NKxKs9T2 OgtnRteFjE9FgSZwL2ClE/eHChgJwRdAnVCYftqbeymSpGsRffKjzgmuYjbSiOOhB/uP QMkp0njbObaaQqwQEMiQib5aIOQBKYoVq7324oa8uVRSu/uc95hsQ/+1E08Qsu7BW/Eu ym2g== X-Gm-Message-State: AE9vXwPCFNo7q17LtyGHRYKqtQaCtecSbNBZkgxY1LzmNU2nKv7R6pEwQU0NZWkJJ9cNVfURfFcAgNO44ZeOXA== X-Received: by 10.36.123.199 with SMTP id q190mr13702914itc.46.1473320830338; Thu, 08 Sep 2016 00:47:10 -0700 (PDT) MIME-Version: 1.0 Received: by 10.107.180.212 with HTTP; Thu, 8 Sep 2016 00:47:09 -0700 (PDT) From: =?UTF-8?Q?Niccol=C3=B2_Corvini?= Date: Thu, 8 Sep 2016 09:47:09 +0200 Message-ID: Subject: iscsi multipath with gmultipath To: freebsd-scsi@freebsd.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Sep 2016 07:47:11 -0000 Hi, I'm testing iscsi multipath with gmultipath, the setup is: Target: Dell MD3000i with double controller RAID 6 Initiator: Custom server with dual Gigabit Ethernet, FreeBSD 10.3 RELESE The MD3000 expose the lun on two different subnets, 192.168.253.253, 192.168.252.253. From the initiator i connect to both the ports. TargetAddress = 192.168.253.253 Connected: da0 TargetAddress = 192.168.252.253 Connected: da1 I have setup the system to use gmultipath: gmultipath label -v TEST /dev/da0 /dev/da1 And then i've testing the performance, both with active/passive and actve/active. From what i have seen, the performance don't change that much, there is some stuff to configure that i'm missing? Copying form the internal drive to the target dd if/of bs=1m (4.7GB) A/P 65MB/s dd if/of bs=1m (4.7GB) A/A 73MB/s Copying from the target to /dev/null, same file A/P 101MB/s A/A 123MB/s Thanks