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Time Machine Disk spinning all the time?

Day 3 of my TC. Love it, so far. Curious, though...my disk seems to be spinning all the time. Is this normal? Even when computer is in sleep?

15" MBP, Mac OS X (10.5.1)

Posted on Mar 3, 2008 3:19 PM

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Posted on Mar 4, 2008 1:39 PM

Well, believe it or not disks exhibit less wear when they're spinning as opposed to when they are constantly put to sleep and woken up.. Kind of like a light bulb, which will more likely burn out by being turned on and off all the time, rather than staying constantly lit. Simple physics.

Since the time capsule is technically a server, even claiming to use "server grade hard drives," Apple is probably just abiding by this principle and keeping the drive always spinning.
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Mar 4, 2008 1:39 PM in response to getmilton

Well, believe it or not disks exhibit less wear when they're spinning as opposed to when they are constantly put to sleep and woken up.. Kind of like a light bulb, which will more likely burn out by being turned on and off all the time, rather than staying constantly lit. Simple physics.

Since the time capsule is technically a server, even claiming to use "server grade hard drives," Apple is probably just abiding by this principle and keeping the drive always spinning.

Mar 9, 2008 2:10 PM in response to getmilton

Hi guys. Not for me.
I was very surprised but, just now, my Time Capsule was not making any noise nor vibration, and yes, the disk was in stand-by. I just check, last backup on my mini was 20 minutes before. I just activated a "backup now" and the disk started to spin directly. !
So yes, the disk fall asleep but I don't know how and when, but I'm very glad it is.

Why it would be a server always spinning drive ? I sleep and my computers too, so I would just be unhappy with a drive always spinning !

Mar 9, 2008 2:22 PM in response to teorema67

Maybe you have to give it some times ? Or we can see a future update. I mean, if mine was sleeping, it means something is done for that, but for now we don't know how, and can't change the settings. But probably soon.

And in my case, it's so cold here, I'm glad it's a bit hot 🙂 and it's not so hot, and it's really not noisy, I'm really more happy with it than with any other external hard disk I have!

*UPDATE : 15 minutes after I asked a "backup now", it's again in sleep mode... :)*

Message was edited by: Sebastien S.

Mar 9, 2008 2:30 PM in response to getmilton

Mine is warm-hot to the touch. I can leave my hand on it without discomfort. A RadioShack IR thermometer measures the warmest point on the top at 120 degrees. There is a fan inside which is on at all times. The fan is fairly quiet. I can only hear it when my Mac is shut down. (A dual G5 is CLEARLY louder than the Time Capsule...) The hard drive goes to sleep quickly. If I try to access the hard drive, I can barely hear it spinning up to speed. There's about a 5-10 second delay before the finder window opens. I assume this is how it is supposed to be? Does anyone know how the Time Capsule is supposed to behave? There aren't really any references yet... The genius at my local Apple store just started using one and doesn't yet have an understanding of its normal behavior.

Mar 19, 2008 5:20 PM in response to teorema67

Same here. After a lot of trying I believe the problem is how you connect to TC. If using it for Time Machine only the disk spins down after 2 minutes. Using it as a NAS (copying files to/from it etc) it sometimes spins down sometimes it doesnt. I also found out, that if you eject/disconnect TC before shutting down it helps. Otherwise TC will spin up during shut down (not sleep!) and wont stop.
After restarting TC it will spin down again. Very annoying to have to reboot TC if I want to sleep quietly 😉

I hope this will be fixed in a firmware update.

Mar 28, 2008 9:11 AM in response to getmilton

I've been using Time Machine for a week and it worked fine the first few days, now whenever it starts backing up, it never stops. The disk keeps spinning. And when clicking on the Time Machine menu bar icon, it always says "preparing to back up." Also when i click on my external hard drive it shows some days bcked up but the one from the day before is still in progess and doesn't have backups for the days since.

Mar 28, 2008 9:15 AM in response to Erik Jacobsen2

Be sure to restart your computer, then give it time to proceed.
If something went wrong it may have to check integrity of the files and this could take a lot of time.

Be sure Ethernet is upper than Airport in your network preferences, try to shutdown, connect to TC via Ethernet, then reboot your mac, and see what happend. If the TC make some disk noise it's not a bad point.

Time Machine Disk spinning all the time?

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