From owner-freebsd-fs@FreeBSD.ORG Mon Sep 13 00:15:15 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 69CAD106566C for ; Mon, 13 Sep 2010 00:15:15 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id F04A38FC0A for ; Mon, 13 Sep 2010 00:15:14 +0000 (UTC) Received: by fxm4 with SMTP id 4so3324345fxm.13 for ; Sun, 12 Sep 2010 17:15:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=RKrlW6fSU+7v7d7Bd9UvvIRxS7K9Oks2rEzPPh45Xb4=; b=Bi05XORmqRp6VqexQx379mU/qfl1+ykIbhpukLYOmbtwLn3SXjdlwWeTlJb6sYTUqu ifYNP+7IG7o9yp2BUf61/16MYMkMzHo5wdYL3jWyaClZgJaYYlYlJUoiT5QbBCBAVJAc BPxGHghCBWbG5BPd9zjHPf1m1LO6Li0aw4GyQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=fvJs7SofzAucH7/K3cIN6pbr2H8qiXWxPebevI4bgRuLzq+WTGmSMcHnPZzYU8cQuy mGkrYKLBAwFKa0yMuRGQt/vTdqetV/DxO/zRDhKO0EpWvQxdJ4SASIy8poaR0CkUi29c JBcfvljb8C9EqWZtHalYYXzX48B9851ehjoKc= MIME-Version: 1.0 Received: by 10.223.126.15 with SMTP id a15mr2719774fas.67.1284336913805; Sun, 12 Sep 2010 17:15:13 -0700 (PDT) Received: by 10.223.110.197 with HTTP; Sun, 12 Sep 2010 17:15:13 -0700 (PDT) In-Reply-To: <201009121640.39157.josh@tcbug.org> References: <4C8D234F.40204@quip.cz> <201009121640.39157.josh@tcbug.org> Date: Sun, 12 Sep 2010 17:15:13 -0700 Message-ID: From: Freddie Cash To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: FreeNAS vs OpenSolaris vs Nexenta ZFS Benchmarks X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Sep 2010 00:15:15 -0000 On Sun, Sep 12, 2010 at 2:40 PM, Josh Paetzel wrote: > I'm a tad confused about the whole "sharing a ZFS filesystem over iSCSI".= =C2=A0I > thought iSCSI was used to eport LUNs that you then put a filesystem on wi= th a > client. (Everyone here probably already knows this, but thought I'd pass it along anyway.) Correct. You create ZFS volumes (zfs create -V), which appear as block devices (/dev/zvol/poolname/volumename), which are then exported via iSCSI to remote clients. The remote clients then format the iSCSI LUN any way they please, with any filesystem they want (treating it just like a normal, local harddrive). No ZFS filesystem is involved. > iSCSI on FreeBSD is fairly slow compared to other solutions, I think ther= e is > some very preliminary work to fix that going on. Using which target (iscsi-target or istgt)? Or are they both slow? --=20 Freddie Cash fjwcash@gmail.com