最後更新: 2016-12-09

介紹

WD HDD 的 "Load_Cycle_Count" 的壽命是 30 萬次左右,

可是 WD Default 會連續8秒沒有讀寫時, 就讓磁頭進入 "park position"

Checking

smartctl -A /dev/sda | grep "^193"

193 Load_Cycle_Count        0x0032   199   199   000    Old_age   Always       -       4937

 * 此 value 會不斷升

Tools

idle3-tools

Download & Install

http://sourceforge.net/projects/idle3-tools/files/

tar -zxf idle3-tools-0.9.1.tgz

cd idle3-tools-0.9.1/

make

# Version

./idle3ctl -V

idle3ctl v0.9.1

# Get idle3 timer raw value

./idle3ctl -g /dev/sda

Result:

Idle3 timer is disabled

# 在 USB HardDisk 情況

./idle3ctl --force -g /dev/sde

# Disable idle3 timer

idle3ctl -d /dev/sda

wdidle3

This firmware modifies the behavior of the drive to wait longer before positioning the heads in their park position and turning off unnecessary electronics.

WDSpinUp

configure the low current spinup feature for Western Digital GreenPower(TM) drives.
It allows spinup current to be configured to low or super low. It reports spinup current setting (low or super low).