1.9 KiB
| title | layout | created | toc | tags | |||||
|---|---|---|---|---|---|---|---|---|---|
| Western Digital GreenPower Disks | default | 2012-08-20 20:46:38 +0200 | true |
|
Advanced Format
Advanced Format disks are optimized for 4kB sectors. To format them under Linux, use parted with -a minimal and unit type s (sectors). (see here)
IntelliPark
WD GreenPower disks have some problems under Linux with their "head parking" feature parking the head every 8 seconds. This destroys the disk over a short time span.
More info:
- http://www.sagaforce.com/~sound/wdantiparkd/
- http://www.instantfundas.com/2011/12/intellipark-makes-western-digital-green.html
Temporary fix
To fix this, you have to disable it or set it to a more reasonable timeout:
$ sudo hdparm -S 242 /dev/sdX
You have to repeat this after each boot, so you may want to add the line to your /etc/rc.local.
Permanent fix
To fix this permanently, you can compile the tool wdidle3. There's a bootable ISO available for download at ngohq.com.
For Linux, there's idle3ctl from the idle3-tools.
You can display the current value with the following command:
$ sudo ./idle3ctl -g /dev/sdX
Idle3 timer set to 80 (0x50)
The value 80 means 8 seconds (default). From 1-128, the values mean 1/10th of a second, e.g. 128 would be 12.8 seconds. 129-254 are in 30 seconds steps. 129 is 30 seconds, 130 is 60 seconds, etc.
Set the desired value as follows:
$ sudo ./idle3ctl -s 158 /dev/sdX
Idle3 timer set to 158 (0x9e)
Please power cycle your drive off and on for the new setting to be taken into account. A reboot will not be enough!
Do as it says to enable the new setting.