Comment 438 for bug 59695

Revision history for this message
Igor Nikolic (i-nikolic) wrote :

As a reply to myself at : https://bugs.launchpad.net/ubuntu/+source/acpi-support/+bug/59695/comments/431
WD got back to me with this reply :

---
Dear Igor,

Thank you for contacting Western Digital Customer Service and Support.

The drives have a minimum life of 600K cycles. There is a utility that you can run to alter to a max of 25 seconds, or disable the load/unload cycles the drive performs. It is recommended to alter the load/unload cycles rather than a complete disable.

Please see the attached file.

Sincerely,
Michelle D.
Western Digital Service and Support
http://support.wdc.com
---

On their support site I found a program called wdidle3.exe.
The accompanying wdidle3..txt says :

---
WDIDLE3 Version 1.00 for DOS

DESCRIPTION

- DOS Level utility to setup or report the idle3 value.

FEATURES

- Scan for all drives. Non-WD Drives shall only show the model and serial

  numbers.

- Uses a Vendor Specific Command to set or get the idle3 timer.

- Timer can be set from 100 ms to 25.5 seconds, in 100ms increments.

USAGE

WDIDLE3 [/S[<Timer>]] [/D] [/R] [/?]

where:

/S[<Timer>] Set timer, units in 100 milliseconds (1 to 255). Default=80.

/D Disable timer.

/R Report current timer.

/? This help info.

DOS ERRORLEVEL

0 No error

1 Drive problem

254 Internal program error

255 Invalid command line argument
---

Since I do not have a floppy drive on this machine, and after a few hours of unsuccessful fiddling with FreeDos booting from a USB drive, I still have no idea if this helps.

But there is an interesting stuff in the text file. The default is 80, so 8 seconds. That would mean that the drive is sent to park every 8 seconds? The other weird thing is that the maximum is 25 seconds. That would be worse then the number of parks right now. Or am I reading this wrong ?

Anyway, I hope somebody finds this info useful. If not, sorry for spamming...

Igor