From owner-freebsd-fs@freebsd.org Wed Sep 7 18:41:07 2016 Return-Path: Delivered-To: freebsd-fs@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 21B15BD0F6A for ; Wed, 7 Sep 2016 18:41:07 +0000 (UTC) (envelope-from ben.rubson@gmail.com) Received: from mail-wm0-x235.google.com (mail-wm0-x235.google.com [IPv6:2a00:1450:400c:c09::235]) (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 A6B47164F for ; Wed, 7 Sep 2016 18:41:06 +0000 (UTC) (envelope-from ben.rubson@gmail.com) Received: by mail-wm0-x235.google.com with SMTP id w12so48741415wmf.0 for ; Wed, 07 Sep 2016 11:41:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:subject:from:in-reply-to:date :content-transfer-encoding:message-id:references:to; bh=HFMvOQk6vdaZXlqxHvbnQRa8yuLjql2+HQ5fHui2YBU=; b=u0JsIh/tglxLQQ6QltOtB7g2CL3zuuvog7dLUO6D08Nc9d55ttH9JWtc5aVM1kqU1I aeBoUVdjzuU4JOdSBOzNjSSfjWayJc89XEupLMh2AUUTzHzwprTzYTWsCzp8+SjCgWQW 2tGFpKzcRscCyfAQtiuSCdqTuLn4a/ZcLV8F54ysmJVcDT07Nm3PKHlSCVHQvieNJk50 wclNgLCIz0yOAs0s7cOGlS3u5qR2n+SKGv6epH0tpxOuWljV7bL9xOPLZMyflSYUOvzD uKinQ74h7oM6UVzoBERZvXJdZUZ+YcI80R3F80nw3G/LaRIQCzH8xf0O26EIF8K4Z5wq QwSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date :content-transfer-encoding:message-id:references:to; bh=HFMvOQk6vdaZXlqxHvbnQRa8yuLjql2+HQ5fHui2YBU=; b=JO13rlWr7iAnLI9EtThtAQbhqm2f1bTunR8L4q7l77Jh6jM7Pcgctw3U9qfRODXBDq rM/R2Ly08P3h/OIs1MPO6SsrDWlvphh//uQSY4X13UsDaFrTg6qThftYfSzFsFgHr6ku ru0w6U+tmC7RyGQ/NRqkFNSZM8ZgCMLIvAHH3RokiONU6n5gIg0boaVCwwpenCoXWmmL Q+Zte6xRn5NjWvCT6FrC5KX5UB7J9funqGZ3/GShpRZk7dx77QkJr7rJuTIk8Vfk9HxA CHg0Dy1aXaBUvhk4RFNwOnStz7ikcn5PlFrPl82CUwP3y7iy01IynwvbAUN2W0p0lhkD Fu+Q== X-Gm-Message-State: AE9vXwPsYhsv0dldiSZXyrRmQHIch13IS/D0XF3ZbSDGOYNkwQqptHUSthKhA3mQK/FSTw== X-Received: by 10.194.0.73 with SMTP id 9mr16370906wjc.123.1473273664916; Wed, 07 Sep 2016 11:41:04 -0700 (PDT) Received: from [172.20.10.6] ([80.12.63.77]) by smtp.gmail.com with ESMTPSA id t65sm717948wmt.15.2016.09.07.11.41.03 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 07 Sep 2016 11:41:04 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: HAST + ZFS + NFS + CARP From: Ben RUBSON In-Reply-To: <62938BA3-67EC-466E-8A0E-E8B6FA544D74@gmail.com> Date: Wed, 7 Sep 2016 20:41:02 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: References: <61283600-A41A-4A8A-92F9-7FAFF54DD175@ixsystems.com> <20160704183643.GI41276@mordor.lan> <20160704193131.GJ41276@mordor.lan> <20160811091016.GI70364@mordor.lan> <1AA52221-9B04-4CF6-97A3-D2C2B330B7F9@sarenet.es> <20160811101539.GM70364@mordor.lan> <20160811110235.GN70364@mordor.lan> <20160811114919.GP70364@mordor.lan> <62938BA3-67EC-466E-8A0E-E8B6FA544D74@gmail.com> To: FreeBSD FS X-Mailer: Apple Mail (2.3124) X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Sep 2016 18:41:07 -0000 > On 03 Sep 2016, at 15:22, Ben RUBSON wrote: >=20 >> On 11 Aug 2016, at 13:49, Julien Cigar wrote: >>=20 >> BTW any idea if some sort of checksum for payload is made in the = iSCSI >> protocol? >=20 > There is ! > Interesting paper related to this : > = https://www.anixter.com/content/dam/Suppliers/viavi/White%20Paper/Understa= nding%20sCASI%20Digest.pdf Some throughput considerations : https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212454=