New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Other Hardware and Peripherals Other Apple systems and peripherals discussion.

External Time Machine HDD Does Not Sleep


Post Reply New Thread Subscribe

 
Thread Tools
Steppy

 
Member Since: Oct 19, 2011
Posts: 4
Steppy is on a distinguished road
Mac Specs: iMac 27" i5 3.1GHz

Steppy is offline
Hi

I've had my iMac now since September and I am loving it, but I have a couple of questions below. I did try searching, but most of the results were about Macbooks.

I use a 1TB Buffalo external USB drive for my Time Machine backup which has worked great so far. It used to live under my desk tucked away, but recently I have moved it into a ventilated under desk cupboard so I don't keep hearing it spin up and seek when it backs up. I realised this morning when I went to get something out of the cupboard that it was still running even though my iMac was in Sleep mode.

The power/seek green light was off, but the drive was spinning and was therefore slightly warm to the touch.

I can't be 100% sure, but I thought it used to shutdown fully before. Also my iMac never seems to go to sleep automatically anymore.... could the two be connected?

Is the drive going to be consuming much power and will it do any harm?

BTW I am running OSX Lion

The other question, what happens if I switch off the power at the wall when the iMac is sleeping.... does it harm anything?

Thank you.

iMac 27" i5 3.1GHz - OSX Lion
iPad 2 32 GB 3G Black - T-Mobile UK
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 38,406
chscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond repute
Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

chscag is offline
Some external hard drives will prevent your Mac from entering sleep mode - it just depends on the drive's firmware. A constantly spinning hard drive is consuming energy and will wear out faster.

My personal rule is I never leave my hard drives attached to my iMac unless I'm actively using them. And that also goes for my Time Machine backup drive as well. However, that may not work for everyone especially if you forget to attach the TM drive to make the backup. I use Time Machine every 2 or 3 days to do a backup rather than the default every hour which in my opinion is overkill. But I also use Carbon Copy Cloner every 2 days to clone my hard drive to another external.

To answer you last question... Don't switch off your iMac when it's sleeping as that can mess up its brain and may corrupt data. Also as an aside, I highly recommend using an UPS with your iMac.
QUOTE Thanks
osxx

 
osxx's Avatar
 
Member Since: Jan 19, 2008
Location: houston texas
Posts: 4,638
osxx is a name known to allosxx is a name known to allosxx is a name known to allosxx is a name known to allosxx is a name known to allosxx is a name known to allosxx is a name known to all
Mac Specs: 09 MBP 8GB ram 500GB HD OS 10.9 32B iPad 4 32GB iPhone 5 iOs7 2TB TC Apple TV3

osxx is offline
To add to what chscag said make sure your drive has the latest firmware by going to Buffalo's site.
QUOTE Thanks
Steppy

 
Member Since: Oct 19, 2011
Posts: 4
Steppy is on a distinguished road
Mac Specs: iMac 27" i5 3.1GHz

Steppy is offline
Thank you both very much for your replies. I am glad I never did the switch off at the wall which I have been very tempted to do.

Funnily enough when I got home tonight the drive was off and cool. Maybe it had come on in the night and hadn't yet shutdown

I will check the Buffalo website to see if there is an updated firmware.

My Mac used to goto sleep on its own, but not anymore. I did read somewhere that home sharing could stop it sleeping, but not sure if thats my problem.

Thanks again for your help

iMac 27" i5 3.1GHz - OSX Lion
iPad 2 32 GB 3G Black - T-Mobile UK
QUOTE Thanks

Post Reply New Thread Subscribe


« External Monitor TV for 2010 13" Mac Book Pro | Savin C2525 printing »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
Using external hard drive for Time Machine bkinney Other Hardware and Peripherals 2 04-21-2011 09:51 AM
HDD Issue and Time Machine teamtomo OS X - Operating System 2 03-06-2011 05:45 AM
Transfer Time Machine Backup from Time Capsule to External Hard Drive Aphracer Other Hardware and Peripherals 0 08-28-2010 12:48 AM
Time machine; reliable backup or no? walkerj OS X - Operating System 4 11-12-2009 07:03 AM
Problem running time machine on external hd through aiport extreme lilweezyana Internet, Networking, and Wireless 4 04-21-2009 11:22 PM

All times are GMT -4. The time now is 10:45 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?