Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752858AbYL3Svk (ORCPT ); Tue, 30 Dec 2008 13:51:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752073AbYL3Sv2 (ORCPT ); Tue, 30 Dec 2008 13:51:28 -0500 Received: from bombadil.infradead.org ([18.85.46.34]:45996 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751597AbYL3Sv1 (ORCPT ); Tue, 30 Dec 2008 13:51:27 -0500 Date: Tue, 30 Dec 2008 13:51:26 -0500 From: Kyle McMartin To: Justin Piszcz Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, Alan Piszcz Subject: Re: 2.6.27.10: ata1.00: HPA detected: current 293044655, native 293046768 Message-ID: <20081230185126.GC15235@bombadil.infradead.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1369 Lines: 34 On Tue, Dec 30, 2008 at 07:26:40AM -0500, Justin Piszcz wrote: > On one system, two Raptor 150s: > > [ 0.739402] ata1.00: HPA detected: current 293044655, native 293046768 > [ 0.739491] ata1.00: ATA-7: WDC WD1500ADFD-00NLR5, 21.07QR5, max UDMA/133 > [ 0.739577] ata1.00: 293044655 sectors, multi 0: LBA48 NCQ (depth 31/32) > [ 0.742454] ata1.00: configured for UDMA/133 > > [ 1.059146] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) > [ 1.061406] ata2.00: ATA-7: WDC WD1500ADFD-00NLR5, 21.07QR5, max UDMA/133 > [ 1.061494] ata2.00: 293046768 sectors, multi 0: LBA48 NCQ (depth 31/32) > [ 1.064360] ata2.00: configured for UDMA/133 > > Two disks in a RAID-1 (mdadm) configuration, how come the first one > has an issue w/HPA as the firmware of both disks is the same..? > > l1:~# smartctl -a /dev/sda | grep -i bytes > User Capacity: 150,038,863,360 bytes > l1:~# smartctl -a /dev/sdb | grep -i bytes > User Capacity: 150,039,945,216 bytes > l1:~# > > Why does this occur? > Bonghits... Anyway, pass libata.ignore_hpa=1 if you want to use the full capacity of your disk. regards, Kyle -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/