这篇文章修复load/unload cycle count部分参考了文章《Ubuntu中Load/Unload Cycle Count问题及解决》。
这篇文章监控load/unload cycle count部分是自个写的。
写这篇文章的目的是记录自己如何解决该问题,为以后可能出现的重装Ubuntu提供一个指引,备忘而已。
Ubuntu版本:10.04 lucid lynx
查看硬盘设备的路径。替换后面3个disk脚本中的设备路径。比如有两个硬盘的话,使用"/dev/sda /dev/sdb"替换"/dev/sda"。
sudo fdisk -l
新建文件/etc/pm/config.d/disk,并赋予可执行权限。文件内容如下:
# Configure disk power management settings to ensure both
# long disk life and good power management.
#
# Space delimited list of disk devices this affects.
#
DEVICES_DISK_PM_NAMES="/dev/sda"
#
#
# Power management modes
#
# Powersave mode off
# Set APM as 255
## Set spin-down for 30 minutes
#
DEVICES_DISK_PM_POWERSAVE_OFF="hdparm -q -B 255"
#
# Powersave mode on
## Enable APM to conservative 192 and set spin-down for 21 minutes
#
DEVICES_DISK_PM_POWERSAVE_ON="hdparm -q -B 254"
新建文件/etc/pm/power.d/disk,并赋予可执行权限。文件内容如下:
#!/bin/bash
#在power.d中加入Hook脚本,作用是在使用电池和AC电源的时候可以自动切换省电模式
./usr/lib/pm-utils/functions
./etc/pm/config.d/disk
if test -z "${DEVICES_DISK_PM_NAMES}"; then
exit 1
fi
case "$1" in
true)
echo "**enabled pm for harddisk"
for DISK_NAME in `echo ${DEVICES_DISK_PM_NAMES}`; do
${DEVICES_DISK_PM_POWERSAVE_ON} ${DISK_NAME}
done ;;
false)
echo "**disabled pm for harddisk"
for DISK_NAME in `echo ${DEVICES_DISK_PM_NAMES}`; do
${DEVICES_DISK_PM_POWERSAVE_OFF} ${DISK_NAME}
done ;;
esac
新建文件/etc/pm/sleep.d/disk,并赋予可执行权限。文件内容如下:
#!/bin/bash
#在sleep.d中加入脚本,目的是在休眠/待机之后唤醒的时候重新设定hdparm的参数
./usr/lib/pm-utils/functions
./etc/pm/config.d/disk
if test -z ${DEVICES_DISK_PM_NAMES}; then
exit 1
fi
case "$1" in
thaw|resume)
/usr/bin/on_ac_power;
if [ "$?" -eq 0 ]; then
echo "**disabled PM for harddisk"
for DISK_NAME in `echo ${DEVICES_DISK_PM_NAMES}`; do
${DEVICES_DISK_PM_POWERSAVE_OFF} ${DISK_NAME}
done
elif [ "$?" -eq 1 ]; then
echo "**enabled PM for harddisk"
for DISK_NAME in `echo ${DEVICES_DISK_PM_NAMES}`; do
${DEVICES_DISK_PM_POWERSAVE_ON} ${DISK_NAME}
done
fi
;;
esac
确保laptop-mode是禁用的(默认就是禁用的)。查看文件/etc/default/acpi-support,看文件中是否有这一行:
ENABLE_LAPTOP_MODE=true
一旦有这一行,表明laptop-mode是启用的,那么一定要设置为false!
那么如何监控load/unload cycle count的数值呢?
安装smartmontools。
sudo apt-get install smartmontools
在家目录下新建文件AskPassProg.sh,并赋予可执行权限。文件内容如下:
#!/bin/bash
# this file serves as sudo ask program, you must not delete this file.
# if user 'bruce' 's password is changed, modify this file please.
# 请修改字符串为你用户的登录密码!
echo "11111111"
在家目录下新建文件monlcc.sh,并赋予可执行权限。文件内容如下:
#!/bin/sh
export SUDO_ASKPASS=~/AskPassProg.sh
while true;
do
cur_date=`date`;
lcc=`sudo -A smartctl -a /dev/sda | grep 193`;
echo $cur_date : $lcc;
echo $cur_date : $lcc >> monlcc.log;
sleep 300;
done;
export SUDO_ASKPASS=""
直接执行monlcc.sh,就会在家目录下生成一个文件monlcc.log,可以实时看到load/unload cycle count数值了。现在不用担心ubuntu伤害硬盘了吧!
为了随机启动该脚本,你可以在启动应用程序(系统->首选项->启动应用程序)中添加相关配置。
命令输入框显示不全(易用性不够啊同学!),全部命令如下:
gnome-terminal --geometry +0+30 -e ~/monlcc.sh