From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Rainer_F=FCgenstein?= Subject: Re[2]: Promise SATA TX4 300 + 3TB disks? Date: Sun, 7 Oct 2012 19:37:26 +0200 Message-ID: <123539095.20121007193726@oudeis.org> References: <818058745.20121005012826@oudeis.org> <20121005123653.0a5398e0@natsu> <506E9E77.1080002@hardwarefreak.com> <20121005145011.673f4974@natsu> <719665592.20121005153321@oudeis.org> <506F8FEC.7040402@hardwarefreak.com> Reply-To: =?ISO-8859-1?Q?Rainer_F=FCgenstein?= Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: In-Reply-To: <506F8FEC.7040402@hardwarefreak.com> Sender: linux-raid-owner@vger.kernel.org To: Stan Hoeppner Cc: Linux MDADM Raid List-Id: linux-raid.ids SH> As John mentioned the TX4 BIOS/firmware shouldn't be an issue. This is SH> a 48bit LBA controller and theoretically can access a single disk drive SH> of up to 144PB in size. this is the information I was hoping for ;-) sounds good. SH> This is the cause of the 2TB drive size limit you read about all over SH> the web. If you have a 64bit kernel with an LBA48 controller (most are) SH> then this shouldn't be an issue, as all 48 LBA bits are addressable by a SH> 64bit kernel. With a 64bit kernel, if the TX4 doesn't give you all 3TB SH> per drive, then there's a driver or firmware bug present. both systems are running CentOS5 with a recent 64bit kernel, so this shouldn't be a problem. SH> Assuming the hot swap bays in the chassis are indeed SATA/SAS and not SH> SCSI/SCA, then your best, least expensive, solution is the SuperMicro SH> AOC-SAT2-MV8 64-bit PCI-X133MHz: ordered one on ebay yesterday, really looking forward to receiving it :) SH> You provided no details of the chassis or backplane(s) or I could tell SH> you which, if any, reverse breakout cables you need. If the SH> backplane(s) have 8 cable connectors you're golden. If they have SH> 2xSFF8087 connections then you'll need two reverse breakout cables. this second-hand server was originally equipped with an U320 scsi backplane which I removed. by this the hotswap capability is lost, the drives will be directly connected to the AOC-SAT2-MV8 controller, I can live with that. nonetheless it would be nice to have a SATA backplane, but by googling I couldn't find one that fits into this chassis (blue/white AVANTEK). tnx. -- rainer