Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

bollweevil

macrumors 6502
Original poster
Feb 1, 2008
410
1
If my laptop is closed, can I simply unplug a Time Machine USB backup drive, or must I open the laptop and "eject" the drive properly? I have been doing the latter just to be careful. Thanks.
 
Definitely best to open and eject. It properly unmounts the drive so you don't have data errors, plus unplugging a drive while your computer is asleep will wake it up.
 
Definitely best to open and eject. It properly unmounts the drive so you don't have data errors, plus unplugging a drive while your computer is asleep will wake it up.

I agree. I learnt the hard way that that is safer: I lost about 400gb of movies stored on an external HD after doing this a couple times, and ruined a perfectly great WD drive.
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5)

I understand if its asleep, but does it harm the hdd even if the pc is completely shut off?
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5)

I understand if its asleep, but does it harm the hdd even if the pc is completely shut off?

The possibility exists.
 
If a computer is shut down, doesn't it perform the similar "eject" command during the shut down routine?

Once it is off, the drive is already "ejected" and would be identical to unmounting it manually in the OS and then unplugging it.

In the case of sleep though, it will be more proper to wake and eject.

Btw unmounting errors are not serious enough to wipe a whole drive, it just means it may become less compatible with more sensitive devices -and this lasts only until it is properly remounted and unmounted again.

It's not that serious.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.