Is it possible to put an external HD to sleep in OS X

[oceanmonster]

Is it possible to put an external hard drive to sleep in Mac OS X?

 

[Blubbert]

Doesn't the disk spin down when you are not using it?

 

[todd2000]

Just go to Energy Saver In System Prefs, and click the check box for "Put the hard disk(s) to sleep when possible"

 

[trainguy77]

It should spin down my FW drive does spindownHD tells you if it has spun down if you can't tell. Its in the developers tool kit.

 

[Erasmus®]

quick question

Hi guys, just a quick question: whenever I try to modify something on system preferences -> energy saver (something like the "automatically reduce the brightenss of the disbplay before sleep") my changes go back t the original defaults and tu a "custom" energy mode. Is there any option I have to uncheck to make sure I can customize everything and keep it as I want it? thx!!

 

[wrldwzrd89]

Hi guys, just a quick question: whenever I try to modify something on system preferences -> energy saver (something like the "automatically reduce the brightenss of the disbplay before sleep") my changes go back t the original defaults and tu a "custom" energy mode. Is there any option I have to uncheck to make sure I can customize everything and keep it as I want it? thx!!

I believe this behavior is by design. When you change some setting in Energy Saver, it lists your settings as custom. However, it shouldn't be reverting to the defaults - are you clicking Apply Now if the option to do so is available? If it isn't, closing System Preferences should be sufficient to apply the new settings.

 

[Erasmus®]

solved

right, I follew your instructions, you seem to be right so far. thanks for the help!

 

[Mitthrawnuruodo]

Intel-based Macs: Built-in display dims before sleep

Issue or symptom

The screen may dim before sleep on an Intel-based Mac's built-in display, even if the Energy Saver setting "Automatically reduce the brightness of the display before display sleep" is disabled. This setting may no longer be in effect after restarting the computer.

Products affected

* Intel-based Mac with built-in display (MacBook, MacBook Pro)

Solution

As a workaround, to temporarily stop the display from dimming before display sleep, enable the Energy Saver preferences setting "Automatically reduce the brightness of the display before display sleep," then disable it again.

You may also be able to temporarily avoid the issue by putting the computer to sleep and waking it.

Note: The issue will return each time the computer is restarted.

This document will be updated as more information becomes available.

[Link]

Even if only the 'Books are mentioned, it may seem like at least some iMacs are affected, too...

 

[Erasmus®]

waaahh

oohh.. is this something tey can solve through software update? thx for the explaination!