From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750868AbWBNB7v (ORCPT ); Mon, 13 Feb 2006 20:59:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750920AbWBNB7v (ORCPT ); Mon, 13 Feb 2006 20:59:51 -0500 Received: from ishtar.tlinx.org ([64.81.245.74]:42378 "EHLO ishtar.tlinx.org") by vger.kernel.org with ESMTP id S1750868AbWBNB7u (ORCPT ); Mon, 13 Feb 2006 20:59:50 -0500 Message-ID: <43F1393D.9050801@tlinx.org> Date: Mon, 13 Feb 2006 17:58:21 -0800 From: Linda Walsh User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Justin Piszcz CC: smartmontools-support@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: default hdparms? readahead=256? Re: WD 400GB xATA Drives References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I've seen similar errors soon after bootup on a 400GB PATA Seagate drive, but they have mysteriously disappeared so I haven't tracked them down. Have you checked if there is a difference in the hard disk parameters? hdparm -i . For some insane reason I haven't tracked down, drives not explicitly set to known values may not contain "great values". My "readahead" value seems to boot with a value of "256" for all of my drives. Is this not a bit "excessive"? ( Justin Piszcz wrote: > When I write to this disk for a while, I see this in dmesg (only once > so far): > > [31230.223504] ata6: translated ATA stat/err 0x51/04 to SCSI > SK/ASC/ASCQ 0xb/00/00 > [31230.223511] ata6: status=0x51 { DriveReady SeekComplete Error } > [31230.223515] ata6: error=0x04 { DriveStatusError } > > > Is there some sort of smart testing going on constantly? I only get > 26-27MB/s on this 400GB/SATA/16MB/7200RPM drive. I use smartmontools > to do a daily test. However, even with smart disabled, I get: > > # hdparm -t /dev/sde > /dev/sde: > Timing buffered disk reads: 78 MB in 3.06 seconds = 25.46 MB/sec > > Does anyone know if this drive has problems in Linux or something? > > [ 6.895914] Vendor: ATA Model: WDC WD4000KD-00N Rev: 01.0 > > > It just seems to be that drive that has issues. > > Here is a 400GB seagate ata/100: > /dev/hde: > Timing buffered disk reads: 172 MB in 3.02 seconds = 56.91 MB/sec > > Here is a 74GB raptor SATA/150: > /dev/sda: > Timing buffered disk reads: 204 MB in 3.03 seconds = 67.38 MB/sec > > Both drives above are on the same system, so my question is what > exactly is wrong with the WD drive? Is it a Linux issue, a drive > issue, or? > > Does anyone else use this drive, what rates do they get? > > What is up with the error in dmesg? > > > # smartctl -d ata -l selftest /dev/sde > smartctl version 5.34 [i686-pc-linux-gnu] Copyright (C) 2002-5 Bruce > Allen > Home page is http://smartmontools.sourceforge.net/ > > === START OF READ SMART DATA SECTION === > SMART Self-test log structure revision number 1 > Num Test_Description Status Remaining > LifeTime(hours) LBA > _of_first_error > # 1 Short offline Completed without error 00% 1094 - > # 2 Offline Completed without error 00% 0 - > # 3 Offline Completed without error 00% 0 - > # 4 Offline Completed without error 00% 0 - > # 5 Offline Completed without error 00% 0 - > # 6 Offline Completed without error 00% 0 - > # 7 Offline Completed without error 00% 0 - > # 8 Offline Completed without error 00% 1 - > # 9 Short offline Completed without error 00% 810 - > #10 Vendor offline Completed without error 30% 65280 - > #11 Offline Self-test routine in progress 150% 65535 - > #12 Vendor offline Self-test routine in progress 150% 255 - > #13 Vendor offline Completed without error 00% 0 - > #14 Offline Completed without error 00% 0 - > #15 Offline Completed without error 00% 0 - > #16 Offline Completed without error 00% 0 - > #17 Offline Completed without error 00% 0 - > #18 Offline Completed without error 00% 0 - > #19 Offline Completed without error 00% 0 - > #20 Offline Completed without error 00% 0 - > #21 Offline Completed without error 00% 1 - > > > - > 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/