Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753648AbYL3RkW (ORCPT ); Tue, 30 Dec 2008 12:40:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752037AbYL3RkJ (ORCPT ); Tue, 30 Dec 2008 12:40:09 -0500 Received: from main.gmane.org ([80.91.229.2]:55109 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752010AbYL3RkI (ORCPT ); Tue, 30 Dec 2008 12:40:08 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Robert Hancock Subject: Re: 2.6.27.10: ata1.00: HPA detected: current 293044655, native 293046768 Date: Tue, 30 Dec 2008 11:30:07 -0600 Message-ID: <495A5A9F.9020406@shaw.ca> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org Cc: linux-raid@vger.kernel.org, linux-ide@vger.kernel.org X-Gmane-NNTP-Posting-Host: s0106000c41bb86e1.ss.shawcable.net User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) In-Reply-To: Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1444 Lines: 29 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? Presumably somebody or something set up a host protected area on one drive and not the other.. I believe there are some utilities out there that can be used to disable the HPA and allow the full capacity to be used. -- 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/