From owner-freebsd-current@FreeBSD.ORG Tue Jan 8 18:03:08 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 77BB416A417; Tue, 8 Jan 2008 18:03:08 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.208.78.105]) by mx1.freebsd.org (Postfix) with ESMTP id 5FAE113C45A; Tue, 8 Jan 2008 18:03:08 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost.apl.washington.edu [127.0.0.1]) by troutmask.apl.washington.edu (8.14.2/8.14.2) with ESMTP id m08HxqY8083336; Tue, 8 Jan 2008 09:59:52 -0800 (PST) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.14.2/8.14.2/Submit) id m08HxqTp083335; Tue, 8 Jan 2008 09:59:52 -0800 (PST) (envelope-from sgk) Date: Tue, 8 Jan 2008 09:59:52 -0800 From: Steve Kargl To: freebsd-current@freebsd.org, ivoras@freebsd.org, pjd@freebsd.org Message-ID: <20080108175952.GA83277@troutmask.apl.washington.edu> References: <9bbcef730801070230k14f6x567c8caf75d4944d@mail.gmail.com> <200801081758.m08HwlOg076161@lurza.secnetix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200801081758.m08HwlOg076161@lurza.secnetix.de> User-Agent: Mutt/1.4.2.3i Cc: Subject: Re: When will ZFS become stable? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jan 2008 18:03:08 -0000 On Tue, Jan 08, 2008 at 06:58:47PM +0100, Oliver Fromme wrote: > Ivan Voras wrote: > > Pawel Jakub Dawidek wrote: > > > > > Let try to think how we can warn people clearly about proper tunning and > > > what proper tunning actually means. I think we should advise increasing > > > KVA_PAGES on i386 and not only vm.kmem_size. We could also warn that > > > running ZFS on 32bit systems is not generally recommended. Any other > > > suggestions? > > > > I'd suggest we do give all three warnings (KVA_PAGES, kmem_size, i386) > > at once, preferably both when the ZFS module loads and when a zpool is > > created. I think it's important that the tree pieces of information be > > given at the same time so the user doesn't need to hunt solutions > > after panics. > > How about including the URL of the ZFS tuning guide in the > warning message: > > http://wiki.freebsd.org/ZFSTuningGuide > > It contains all the necessary information for both i386 and > amd64 machines. It can also easily be updated if necessary > so people always get the most up-to-date information. > The tuning information belongs in the zfs(8) manual page. -- Steve