From owner-freebsd-stable@FreeBSD.ORG Sun Mar 6 11:56:54 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 535F816A4CE for ; Sun, 6 Mar 2005 11:56:54 +0000 (GMT) Received: from mail.gmx.net (pop.gmx.de [213.165.64.20]) by mx1.FreeBSD.org (Postfix) with SMTP id 2118F43D2F for ; Sun, 6 Mar 2005 11:56:53 +0000 (GMT) (envelope-from emanuel.strobl@gmx.net) Received: (qmail invoked by alias); 06 Mar 2005 11:56:43 -0000 Received: from flb.schmalzbauer.de (EHLO cale.flintsbach.schmalzbauer.de) (62.245.232.135) by mail.gmx.net (mp012) with SMTP; 06 Mar 2005 12:56:43 +0100 X-Authenticated: #301138 From: Emanuel Strobl To: freebsd-stable@freebsd.org, David Magda Date: Sun, 6 Mar 2005 12:56:32 +0100 User-Agent: KMail/1.7.2 References: <20050302104641.44708.qmail@web54004.mail.yahoo.com> <200503040120.38410@harrymail> <54594d81c34e19a27f138574ce4042fa@ee.ryerson.ca> In-Reply-To: <54594d81c34e19a27f138574ce4042fa@ee.ryerson.ca> X-Birthday: 10/06/72 X-CelPhone: +49 173 9967781 X-Tel: +49 89 18947781 X-Country: Germany X-Address: Munich, 80686 X-OS: FreeBSD MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1765589.1fWMoj7pnB"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200503061256.37163@harrymail> X-Y-GMX-Trusted: 0 Subject: Re: Need really cheap IDE mirroring PCI controlled for FreebBSD 4.10 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Mar 2005 11:56:54 -0000 --nextPart1765589.1fWMoj7pnB Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Am Samstag, 5. M=E4rz 2005 02:06 schrieb David Magda: > On Mar 3, 2005, at 19:20, Emanuel Strobl wrote: > > If you consider upgrading to 5.4 you can use any onboard chipset or > > cheap > > controller card with some geomclasses, namely g_mirror. It's fantastic > > and > > the only stateful mirror solution I know. And you can mirror only > > parts of > > your disk, or mirror across 3 drives aso. The power of geom :) > > This can be done with 4.x. From atacontrol(8): > > create Create a type ATA RAID. The type can be RAID0 (stripe), > RAID1 This is not stateful! Nor does it allow to mirror parts of the disk=20 (labels/GPT partitions). Also I can't imagen how to mirror across more then= =20 two disks. You can't compare those and there are several cases where ata-builtin RAID= =20 support fails on different controllers. Also you don't have the "atacontrol addspare" command on 4.x which makes it= s=20 RAID1 function useless on anything but the promise controllers! And he was= =20 looking for cheap controllers which disqualifies the promise. > (mirror), RAID0+1 or SPAN (JBOD). In case the RAID has a > RAID0 [...] > > Vinum(8) is also available on 4.x. But vinum isn't statful too. And vinum doesn't provide g_gate for example. =2DHarry --nextPart1765589.1fWMoj7pnB Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCKu/1Bylq0S4AzzwRAiNNAJ9pusuAdYl7NXKrG+pfpqPHTDcbFACfTaRW ATbxSzXb5sgGpJgY78ZlRNQ= =QzFv -----END PGP SIGNATURE----- --nextPart1765589.1fWMoj7pnB--