From owner-freebsd-hardware@FreeBSD.ORG Sun Feb 7 16:27:09 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BAC73106566C for ; Sun, 7 Feb 2010 16:27:09 +0000 (UTC) (envelope-from stephane.lapie@darkbsd.org) Received: from quasar.darkbsd.org (shinigami.darkbsd.org [82.227.96.182]) by mx1.freebsd.org (Postfix) with ESMTP id 4208F8FC0C for ; Sun, 7 Feb 2010 16:27:08 +0000 (UTC) Received: from quasar.darkbsd.org (localhost [127.0.0.1]) by quasar.darkbsd.org (Postfix) with ESMTP id 44F7A165D; Sun, 7 Feb 2010 17:27:02 +0100 (CET) Received: from quasar.darkbsd.org ([127.0.0.1]) by quasar.darkbsd.org (quasar.darkbsd.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ca1hhtTNbRQy; Sun, 7 Feb 2010 17:26:59 +0100 (CET) Received: from [192.168.3.42] (archer.yomi.darkbsd.org [192.168.3.42]) (Authenticated sender: darksoul) by quasar.darkbsd.org (Postfix) with ESMTPSA id 712771656; Sun, 7 Feb 2010 17:26:58 +0100 (CET) Message-ID: <4B6EE9E7.9010501@darkbsd.org> Date: Mon, 08 Feb 2010 01:27:19 +0900 From: Stephane LAPIE User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: Torsten Kersandt References: <20100207120023.05CD91065775@hub.freebsd.org> <024101caa7ee$ab9eda50$02dc8ef0$@net> In-Reply-To: <024101caa7ee$ab9eda50$02dc8ef0$@net> X-Enigmail-Version: 0.95.6 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig49D61561A0D51C75B4C9124D" Cc: freebsd-hardware@freebsd.org Subject: Re: [zfs][hardware] Reproducible kernel panic in 8.0-STABLE X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Feb 2010 16:27:09 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig49D61561A0D51C75B4C9124D Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Torsten Kersandt wrote: > Hi Stephane >=20 > I currently use some excellent cards from Supermicro, and these seem to= be > the only 8 port PCIx and PCI-E available on the market running on=20 > The marvel chipset. > I would not use them for RAID but as SATA/SAS controllers very good. >=20 > Supermicro 8 Port SATA 2 Card (PCI/PCI-X) AOC-SAT2-MV8 > Supermicro AOC-SASLP-MV8, 8-Port (PCI-E)SAS/SATA Card >=20 > For about =A380.00/USD130.00 each - not bad >=20 > Regards > Torsten Actually, I do have both cards. I have been using them for one year now, and I can say this about both=20 of them : -> Supermicro 8 Port SATA 2 Card (PCI/PCI-X) AOC-SAT2-MV8 This is what I am using right now, I have a server with two of them.=20 It's chip is a Marvell MV88SX6081 8-port SATA II PCI-X Controller. I had virtually nothing to say against this card while using it under=20 FreeBSD up to 7.2-STABLE, but it seems drive hotplug handling is truly=20 lacking in 8.X, though whether this is a problem on the card's side or=20 on some recent change in ATA handling on FreeBSD's side is lost on me. But the current reality is that I am getting random kernel panics for=20 what seems to be ATA queue handling woes. Also, re-detection of drives in BIOS seems to be utterly buggy, so the=20 above hotplug handling problem might be related to the hardware itself. -> Supermicro AOC-SASLP-MV8, 8-Port (PCI-E)SAS/SATA Card This controller does not have a driver for FreeBSD, as of 8.0-STABLE,=20 and documentation for it is not public. I have asked sam@ for advice and = help on obtaining documentation. As an additional comment : Plus, I tried it under Linux, and the mvsas driver available for it is=20 less than satisfying. Drive disconnection/hiccups handling is severely=20 lacking, and I busted several mdadm RAIDs while using this card in test=20 machines, upon "going over the speed limit" and losing all plugged in=20 drives until next reboot. (To be fair, the SVN version of the mvsas driver is a little more=20 stable, but in a "I will only disconnect one drive at a time, so if you=20 see one drive going down, you'll have the time to shut down the RAID=20 array" way.) (As a result, I couldn't exactly say I am satisfied with Marvell on=20 FreeBSD so far. I am seriously considering going for Areca.) Best regards, --=20 Stephane LAPIE, EPITA SRS, Promo 2005 "Even when they have digital readouts, I can't understand them." --MegaTokyo --------------enig49D61561A0D51C75B4C9124D Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAktu6esACgkQ24Ql8u6TF2NX5ACghFSM8xRk26yUVeaK2FeehoEE LKsAn2SLG14eesqFjqgepZkwf7om3e/q =Wp1O -----END PGP SIGNATURE----- --------------enig49D61561A0D51C75B4C9124D--