Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Desktops > iMac

Reply
 
Thread Tools Search this Thread Display Modes
Old Feb 26, 2013, 06:11 PM   #1
TheGreenBastard
macrumors regular
 
Join Date: Nov 2012
Location: Canada
Why are my Time Machine backups so big?

The first time I backed up (a couple days ago), the initial backup was about ~190GB, and every time (every hour) after that, backups have been ~100MB, but the last few hours the backups have been about ~70GB each time. What's up with that? I haven't downloaded anything or changed anything in the past few hours.
__________________
Lots of Apples in my basket.
TheGreenBastard is offline   0 Reply With Quote
Old Feb 26, 2013, 07:37 PM   #2
WilliamG
macrumors 601
 
Join Date: Mar 2008
Location: Seattle
Quote:
Originally Posted by TheGreenBastard View Post
The first time I backed up (a couple days ago), the initial backup was about ~190GB, and every time (every hour) after that, backups have been ~100MB, but the last few hours the backups have been about ~70GB each time. What's up with that? I haven't downloaded anything or changed anything in the past few hours.
Do you use any VMs? Like Parallels or Fusion?
__________________
iMac, MacBook Air, Mac mini, iPad, iPhone, 55-11
www.bighugenerd.com
WilliamG is offline   0 Reply With Quote
Old Feb 26, 2013, 07:59 PM   #3
TheGreenBastard
Thread Starter
macrumors regular
 
Join Date: Nov 2012
Location: Canada
Quote:
Originally Posted by WilliamG View Post
Do you use any VMs? Like Parallels or Fusion?
Yup, but for a couple months, so I'm unsure as to why the backups are so big all of a sudden. Nothing has changed on the VM (downloads).
__________________
Lots of Apples in my basket.
TheGreenBastard is offline   0 Reply With Quote
Old Feb 26, 2013, 10:37 PM   #4
WilliamG
macrumors 601
 
Join Date: Mar 2008
Location: Seattle
Quote:
Originally Posted by TheGreenBastard View Post
Yup, but for a couple months, so I'm unsure as to why the backups are so big all of a sudden. Nothing has changed on the VM (downloads).
How big is your VM OS? It sounds like to me it's backing up the VM changes (which is one big file, so the whole thing gets backed up). I stopped having this backed up because my VM partition was 100GB, and it wanted to back up 100GB every night.

I think you should go into the Time Machine preferences and have it exclude the VM (not the application, but the ACTUAL VM), and then run a backup and see if that fixes it.
__________________
iMac, MacBook Air, Mac mini, iPad, iPhone, 55-11
www.bighugenerd.com
WilliamG is offline   0 Reply With Quote
Old Feb 26, 2013, 11:14 PM   #5
TheGreenBastard
Thread Starter
macrumors regular
 
Join Date: Nov 2012
Location: Canada
Quote:
Originally Posted by WilliamG View Post
How big is your VM OS? It sounds like to me it's backing up the VM changes (which is one big file, so the whole thing gets backed up). I stopped having this backed up because my VM partition was 100GB, and it wanted to back up 100GB every night.

I think you should go into the Time Machine preferences and have it exclude the VM (not the application, but the ACTUAL VM), and then run a backup and see if that fixes it.
I've been using the VM for over a month now, other than the first backup, this strange large backups of ~70GB happened only the last couple of days. Anyway, I think I'm going to disable backup for Parallels.
__________________
Lots of Apples in my basket.
TheGreenBastard is offline   0 Reply With Quote
Old Feb 26, 2013, 11:41 PM   #6
WilliamG
macrumors 601
 
Join Date: Mar 2008
Location: Seattle
Quote:
Originally Posted by TheGreenBastard View Post
I've been using the VM for over a month now, other than the first backup, this strange large backups of ~70GB happened only the last couple of days. Anyway, I think I'm going to disable backup for Parallels.
Sure sounds like the VM, in any case. Let us know how you do when you disable it.
__________________
iMac, MacBook Air, Mac mini, iPad, iPhone, 55-11
www.bighugenerd.com
WilliamG is offline   0 Reply With Quote
Old Feb 27, 2013, 09:58 AM   #7
Fishrrman
macrumors 68040
 
Join Date: Feb 2009
"but the last few hours the backups have been about ~70GB each time. What's up with that?"

Suggestion:
If you want clean backups that are "normally sized" and truly reflect what is on your internal drive, stop using Time Machine and switch to CarbonCopyCloner instead.

CCC backups are fully-bootable exact copies of the source drive. They don't "grow" in size any more than your source.

You can set up CCC to clone the recovery partition as well, and CCC can now "archive" older versions of changed files (similar to what T.M. claims to do).

The major difference with CCC is that there isn't a stupid "on/off" switch. You must set it up and run it "wilfully".

T.M. is "backup for dummies". Just turn it on, and you're all set, right?
The only problem is that if you read this forum, you'll regularly see posts from folks to the effect: "I can't access my T.M. backup…" etc., etc.

A CCC backup is instantly mountable, instantly bootable, with all your files right there in front of you in POFF (plain old finder format).

(just waiting for the replies that say, "T.M. is intended for a different purpose… blah, blah…")

The purpose of backing up is to have a backup at a moment when you desperately need it.

When that "moment of extreme need" comes, you'll be better served by having a CCC backup close-at-hand, than with a T.M. backup…
Fishrrman is offline   0 Reply With Quote
Old Feb 27, 2013, 10:06 AM   #8
talmy
macrumors 68040
 
talmy's Avatar
 
Join Date: Oct 2009
Location: Oregon
Quote:
Originally Posted by Fishrrman View Post
(just waiting for the replies that say, "T.M. is intended for a different purpose… blah, blah…")
I'll bite! TM gives you a version history. Want to recover a file you deleted or modified a year ago? TM will do that, CCC won't.

That said, I'm backup paranoid. I use TimeMachine, SuperDuper! (basically the same as CCC for those that don't know), and CrashPlan. And my SuperDuper! clones are to two alternating backup drive sets, one kept off-site.
__________________
27" i7 iMac, 15" MacBook Pro, Mac mini with Mavericks Server, 5 other Macs and an unused Apple TV.
talmy is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > iMac

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
I need help with Time Machine backups longy6 Mac Basics and Help 2 Mar 13, 2014 12:08 PM
Time Machine SuperDuper - incremental backups taking an exxcessive amount of time sputacus Mac Applications and Mac App Store 1 Nov 27, 2013 06:44 AM
New time capsule, how fast is browsing time machine backups? djrod Mac Peripherals 6 Sep 16, 2013 04:04 AM
Time Machine Backups? Designed4Mac Mac Applications and Mac App Store 2 Apr 29, 2013 12:34 PM
Question on Two time capsules and time machine backups for multiple computers belarocks Mac Peripherals 4 Sep 13, 2012 09:40 AM

Forum Jump

All times are GMT -5. The time now is 12:51 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC