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Incorrect available capacity displayed in OS X 10.8.2

416 Views 8 Replies Latest reply: Jan 24, 2013 11:07 PM by clintonfrombirmingham RSS
jeffroalpha700 Level 1 Level 1 (0 points)
Currently Being Moderated
Jan 24, 2013 1:18 AM

Over the past two weeks, I have noticed the "Available Space" on my  hard drive keeps growing, even though I add more files.  I have attached  two screen shots to show what is happening.  I have the 512GB solid  state drive on a Retina 15" with the 2.6GHz and 16GB RAM.  The formatted  capacity is 499.42GB.

 

The first screen shot shows the HD  finder.  The left info screen that says "Jeffrey Info" is from the  highlighted folder in the finder.  The right info screen is of the  Macintosh HD and was opened by right clicking the HD  on the desktop screen.  As you can see at the bottom of the finder box,  it also says the my available capacity is 498.03GB, even though you can  clearly see that the "Jeffrey" folder is 61.55 GB (plus everything else on the computer).  It says I've only used 1.38GB on disk.  Considering I have Microsoft Office for Mac Business as well as the full Office Enterprise Edition on Windows 8, Adobe programs, SAP, and other stuff for my work, I've obviously used more than 1.38GB.

 

The  second screen shot is from system information.  It clearly shows only  290.58GB available, which sounds correct based on what I know to be on  the HD.

 

The  only thing I have changed in the last month is the use of Time  Machine.  I got this computer in late November and received an Apple  Time Capsule 2TB for Christmas.  I started using it within a few days of  Christmas.  I first noticed the incorrect capacities approximately 2  weeks ago, and it has been progressively getting worse.

 

 

This is not my first Apple computer.  I have been using them since the Powerbook G4 days on OS X 10.2.  I am also running Parallels on here with Windows 8 Pro.  That has been installed and operating since November, so I don't believe it is related to this issue.  I suspect this might have something to do with Time Machine since it seems to have started around that time.

 

Is it normal for Time Machine to constantly backup 30-40GB/day, even though less than 500MB changed during the course of 24 hours?

 

Does anyone know why this is happening and how to fix it?

 

Thank you in advance for any information!

 

Sincerely,

 

Jeff

 

Screen Shot 2013-01-24 at 1.45.53 AM.png

Screen Shot 2013-01-24 at 1.49.55 AM.png

MacBook Pro with Retina display, OS X Mountain Lion (10.8.2), 2.6GHz, 16GB RAM, 512MB SSD
  • sdpitbull Level 3 Level 3 (965 points)

    Yes, Time Machine will write local snapshots to the disk and that sounds like about the correct size. The snapshots are written in case you are not connected to an external disk to back up. They should be erased automatically as the space is needed by other applications.

  • clintonfrombirmingham Level 7 Level 7 (26,780 points)

    It just looks as though the Finder is (obviously) not reporting the space used and the space available correctly. If you go to "About This Mac" under the Apple menu and click on More Info... and then the Storage Tab, what does it show? Please post a screenshot.

     

    Clinton

  • clintonfrombirmingham Level 7 Level 7 (26,780 points)

    No, not the System Information... Hardware>Storage, the Storage tab in About This Mac... More Info>Storage tab:

     

    System InformationScreenSnapz002.png

     

    Just want to be sure that it shows the same as System Information...

     

    Clinton

  • steve626 Level 4 Level 4 (1,395 points)

    jeffroalpha700 wrote:

     

      I am also running Parallels on here with Windows 8 Pro.  That has been installed and operating since November, so I don't believe it is related to this issue.  I suspect this might have something to do with Time Machine since it seems to have started around that time.

     

    Is it normal for Time Machine to constantly backup 30-40GB/day, even though less than 500MB changed during the course of 24 hours?

     

     

    Jeff

    When you boot into Windows on Parallels, the entire Parallels database file changes, so when Time Machine looks to see what has changed and needs to be backed up, it will back up the entire Parallels representation of your Windows machine, which can be easily 30-40 GB. So that entire Parallels virtual machine gets backed up each day (or hour) if you are using Windows via Parallels.

  • clintonfrombirmingham Level 7 Level 7 (26,780 points)

    See the Great Pondoni's article on local snapshots (which show up as "Backups" on the Storage Tab) - http://pondini.org/TM/30.html.

     

    You've likely deleted some files from your internal drive - those deleted files are kept as 'local snapshots' for exactly one week - they just disappear after 7 days. Don't worry about those backups - you can disable them through Terminal but it's not wise to do so. Just check back in a week and you'll notice that the 'backups' in the Storage tab have decreased.

     

    I'd poke around Pondoni's site - some truly great info there!

     

    Clinton

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