Your message dated Mon, 12 Apr 2010 22:01:33 +0530
with message-id <[email protected]>
and subject line Re: Bug#576532: laptop-mode-tools: unsave default setting for
hard drive behaviour
has caused the Debian Bug report #576532,
regarding laptop-mode-tools: unsave default setting for hard drive behaviour
to be marked as done.
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576532: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=576532
Debian Bug Tracking System
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--- Begin Message ---
Package: laptop-mode-tools
Version: 1.45-1
Severity: grave
Tags: patch
Justification: causes non-serious data loss
The standard setting of "1" for BATT_HD_POWERMGMT correspondends to
"aggressive power management" (HDPARM(8)) and spins down the hdd too often.
This can damage hdds.
I ask you to put a saver default there like
BATT_HD_POWERMGMT=127
-- System Information:
Debian Release: 5.0.4
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-2-686 (SMP w/1 CPU core)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages laptop-mode-tools depends on:
ii lsb-base 3.2-20 Linux Standard Base 3.2 init scrip
ii util-linux 2.13.1.1-1 Miscellaneous system utilities
Versions of packages laptop-mode-tools recommends:
ii acpid 1.0.8-1lenny2 Utilities for using ACPI power man
ii apmd 3.2.2-12 Utilities for Advanced Power Manag
ii hal 0.5.11-8 Hardware Abstraction Layer
ii hdparm 8.9-3 tune hard disk parameters for high
ii sdparm 1.02-1 Output and modify SCSI device para
laptop-mode-tools suggests no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
On Monday 05 Apr 2010 19:12:44 Henrik Kröger wrote:
> The standard setting of "1" for BATT_HD_POWERMGMT correspondends to
> "aggressive power management" (HDPARM(8)) and spins down the hdd too often.
> This can damage hdds.
>
> I ask you to put a saver default there like
> BATT_HD_POWERMGMT=127
I have discussed this with the original maintainer and am inclined to conclude
that the current default settings are sane.
BATT_HD_POWERMGMT is for the HDD Power Savings (-B) and not really for the
spin down.
The spin down is controlled by (-S) and the LMT settings for it are:
# Should laptop mode tools control the hard drive idle timeout settings?
#
CONTROL_HD_IDLE_TIMEOUT=1
#
# Idle timeout values. (hdparm -S)
# Default is 2 hours on AC (NOLM_HD_IDLE_TIMEOUT_SECONDS=7200) and 20 seconds
# for battery and for AC with laptop mode on.
#
LM_AC_HD_IDLE_TIMEOUT_SECONDS=20
LM_BATT_HD_IDLE_TIMEOUT_SECONDS=20
NOLM_HD_IDLE_TIMEOUT_SECONDS=7200
On AC it is 2 hrs and on BATT it is 20 secods, which I think is a sane
default.
Am closing this bug report. If you need to discuss it further, please feel
free to re-open it.
Regards,
Ritesh
--
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."
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