From owner-freebsd-questions@FreeBSD.ORG Thu Jan 28 09:41:29 2010 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 A9B5D106566B for ; Thu, 28 Jan 2010 09:41:29 +0000 (UTC) (envelope-from kraduk@googlemail.com) Received: from mail-fx0-f226.google.com (mail-fx0-f226.google.com [209.85.220.226]) by mx1.freebsd.org (Postfix) with ESMTP id 3A5628FC0C for ; Thu, 28 Jan 2010 09:41:28 +0000 (UTC) Received: by fxm26 with SMTP id 26so179704fxm.13 for ; Thu, 28 Jan 2010 01:41:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=fXhx1eiycDhqkA/6Bwz5KjYIVDu4/Q9nDU7koTirdHs=; b=Jy/M2GdW0Wv2qMRpOep3PV70DpHhtEZ4dDvzNQvqKCMB59szFMeM2aCG7oqzYcPlvn tbEB8FMAHykBoMJJZe/PvggMRnaX3Um+XaQWKFZZpSnu+8BZkw7li+DdySmgCr89LQZG oj6pVdPdj5bKhKqF/+2eFjbGTz8vDorp1U/ec= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=ooCHFhjlUFQLVYBgwIl775IzR6Cq/knDOOF83cFlXwUirQ/RpvjPb7fjwDf2QRGrWw IyvV4R9rXLCN1xO7w1NrEZdJxymnGOFVJmtAxtP8/aL/48m4nC6HMjGpeXwaJVfLNgHO pt1jdZQKVHXGhyL73f3IuW0zqnBjnMEVxeB3k= MIME-Version: 1.0 Received: by 10.239.188.82 with SMTP id o18mr1232117hbh.129.1264671687880; Thu, 28 Jan 2010 01:41:27 -0800 (PST) In-Reply-To: References: Date: Thu, 28 Jan 2010 09:41:27 +0000 Message-ID: From: krad To: Dan Naumov Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: Help booting FreeBSD with a ZFS root filesystem 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, 28 Jan 2010 09:41:29 -0000 On 27 January 2010 23:18, Dan Naumov wrote: > >I didn't want a mirror though, I wanted a stripe. > > > >I still don't understand why what I'm doing isn't working. > > As far as I know, having the root pool on a stripe isn't supported. > > OpenSolaris supports having the root pool on a "simple" pool and a mirror > pool. > FreeBSD supports having the root pool on a simple pool, mirror pool > and raidz, but afaik booting off raidz used to have issues. > > - Sincerely, > Dan Naumov > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > Even if a stripe did work its questionable why you need it for the os itself. Mostly you only need to read from the os pool, so you will still benefit from the speed of 2 drives with a mirror. If you are worried about db writes etc, then partition up the drives and have another pool for the db with the zpool configuration you want. Better still put it on its own spindles. Use tmpfs for tmp space etc and you could put swap on the striped pool as well. Just keep the os pool as a mirror its far safer. I also set copies=2 on the root zfs fs as well just for a bit more paranoia