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

Reply
 
Thread Tools Search this Thread Display Modes
Old Nov 4, 2012, 10:48 AM   #1
hyphz
macrumors newbie
 
Join Date: Jan 2011
Typical SSD reported/sold capacity differences?

So, I have a 2010 MacBook Air which came with a 256gb SSD. On "available" space on Get Info, it lists 250gb available. Now, OK, I know that typically this value is not identical to the sold size of the drive. But my rather elderly MacBook Pro, with a 320gb HD, still lists 319.21gb available.

So does that mean that 6gb of my SSD cells have already rotted, in spite of the machine not being used all that much? If so that's... worrying!
hyphz is offline   0 Reply With Quote
Old Nov 4, 2012, 12:01 PM   #2
msjones
macrumors 6502
 
Join Date: Oct 2007
Location: Nottinghamshire, UK
Have a read of this: http://cloudygearz.wordpress.com/201...than-expected/
__________________
MacBook Pro / Nexus 4.
InfoSec guy.
msjones is offline   0 Reply With Quote
Old Nov 4, 2012, 03:10 PM   #3
mfram
macrumors 6502a
 
Join Date: Jan 2010
Location: San Diego, CA USA
You do realize the operating takes space your disk, right? Didn't you notice all those programs pre-installed on your Mac when you got it. They take space. Nothing is 'rotted'.
mfram is offline   0 Reply With Quote
Old Nov 5, 2012, 09:38 AM   #4
hyphz
Thread Starter
macrumors newbie
 
Join Date: Jan 2011
Thanks for your replies.

Mfram, I'm looking at the total size of the disk in Get Info, not the amount of free space.

Msjones, I'm aware of filesystem overhead, but both the MBP and the MBA are running HFS+ filesystems under Mountain Lion so it seems a bit strange that the MBP should have 0.79gb of filesystem overhead while the MBA has 6gb worth.

Is there a recovery partition installed when a system is shipped with Mountain Lion? Could that be it?
hyphz is offline   0 Reply With Quote
Old Nov 5, 2012, 11:00 AM   #5
zObsidian
macrumors member
 
Join Date: Nov 2010
Perfectly normal. I have a 2012 MacBook Air with a 256GB SSD that reports the same.
zObsidian is offline   0 Reply With Quote
Old Nov 5, 2012, 11:03 AM   #6
Weaselboy
macrumors G5
 
Weaselboy's Avatar
 
Join Date: Jan 2005
Quote:
Originally Posted by hyphz View Post
Is there a recovery partition installed when a system is shipped with Mountain Lion? Could that be it?
Yes. There is a 650MB recovery partition.
Weaselboy is offline   0 Reply With Quote
Old Nov 5, 2012, 01:33 PM   #7
Lukewarmwinner
macrumors 6502
 
Join Date: Oct 2012
Quote:
Originally Posted by Weaselboy View Post
Yes. There is a 650MB recovery partition.
Exactly
Lukewarmwinner is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Notebooks > MacBook Air

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
SSD Capacity nkbish0p MacBook Pro 15 Dec 26, 2013 10:21 AM
SSD options, Real world speed differences dnadrifter MacBook Pro 0 Dec 21, 2012 12:02 PM
To ALL rMBP Buyers: SSD capacity and why? Fortimir MacBook Pro 46 Jul 5, 2012 01:41 AM
SSD Differences mattpreston11 MacBook Air 9 Jun 19, 2012 08:09 AM

Forum Jump

All times are GMT -5. The time now is 01:54 AM.

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

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