[Bug 952556] Re: [Precise] [Hardware-killer] HD restarts every few seconds

[Swâmi Petaramesh]

@Steve #27 : Of course the counter for disk spin-ups is "4
Start_Stop_Count" and not "193 Load_Cycle_Count", which is the counter
for heads load/park.

I've edited (on my EeePC 1005PE) /etc/hdparm.conf and removed the
explicit setting for "apm_battery" which I had previously put, but
specified instead "spindown_time = 36" (3 minutes).

I then rebooted my machine, and checked (using "hdparm -I") that I now
have « Advanced power management level: 127 » on my HD.

I then left the machine alone for 10 minutes and checked the counters
before and after :

4 Start_Stop_Count :   No change
193 Load_Cycle_Count: +14

The 2nd one looks reasonable and is not an issue, as the disk can handle
much more heads load/unload (typically 600,000 - 800,000) than it can
stand start/stops (typically 40,000 - 50,000) - theoretically...

I would assume to get comparable results on my other machines, all of
them having more or less the same disk behaviour, however both their
brands and models are completely different.

So my advice would be that Ubuntu *may* use a battery default disk apm
value of "127", but then *MUST* make sure that the disk gets a default
"spindown_time" value which is never less than a couple minutes. My
advice would be something between 3 and 5 minutes.

Otherwise we're gonna destroy laptops HDs.

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https://bugs.launchpad.net/bugs/952556

Title:
  [Precise] [Hardware-killer] HD restarts every few seconds

Status in “hdparm” package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  After update from Oneiric to Precise Beta 1, kernel 3.2.0-18-generic,
  I notice that, when on battery, my Dell XPS  M1330 laptop has its HD
  spin down, then restart, very, very, very often, which means several
  times per minute.

  At this pace the HD won't live long, and this reminds to me a problem
  we had few years ago with "disk killers" linuxes that were
  unloading/reloading the HD heads much too often, killing disks in a
  couple of months.

  So I prefer to ring the alarm bell early...

  Upgrading from Oneiric to Precise I didn't change any power management
  parameter, but it definitely didn't do this before (and still doesn't
  do this on other distros I have on multiboot, so that's no hardware
  issue, only Precise does that on my machine...)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-18-generic 3.2.0-18.28
  ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
  Uname: Linux 3.2.0-18-generic i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  michel     3044 F.... pulseaudio
  CRDA:
   country FR:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20)
   	(5250 - 5330 @ 40), (N/A, 20), DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf6dfc000 irq 46'
     Mixer name	: 'Silicon Image SiI1392 HDMI'
     Components	: 'HDA:83847616,1028020a,00100201 HDA:10951392,1028020a,00100000'
     Controls      : 33
     Simple ctrls  : 19
  CheckboxSubmission: 1ea6109db29b53f721a523a77b7f3abf
  CheckboxSystem: d00f84de8a555815fa1c4660280da308
  Date: Sun Mar 11 22:25:00 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=0e7ded16-c4fc-4f81-8562-3cb1196809d3
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MachineType: Dell Inc. XPS M1330
  ProcEnviron:
   LANGUAGE=fr_FR:fr:en_US:en
   TERM=xterm
   PATH=(custom, user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-18-generic root=/dev/mapper/VG1-UBUNTU ro clocksource=hpet quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-18-generic N/A
   linux-backports-modules-3.2.0-18-generic  N/A
   linux-firmware                            1.71
  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2012-03-10 (1 days ago)
  dmi.bios.date: 12/26/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.name: 0N6705
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: XPS M1330
  dmi.sys.vendor: Dell Inc.

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