Go Back   TechArena Community > Software > Operating Systems
Become a Member!
Forgot your username/password?
Register Tags Active Topics RSS Search Mark Forums Read

Sponsored Links



How does Time Machine works in OS X Lion

Operating Systems


Reply
 
Thread Tools Search this Thread
  #1  
Old 12-05-2012
Member
 
Join Date: Apr 2012
Posts: 32
How does Time Machine works in OS X Lion
  

You know that the OS X lion now include new feature called Time machine. Some might have already used it but does anyone know how exactly the Time Machine works in Mac OS X Lion. This is the one feature I still could not able to find out how. So far I know only one than and that is it has two main bits of "Magic" behind Time Machine:
  • The File System Event Database -- How changes are found here?
  • Multiple Hard Links -- How backups are stored here?

Reply With Quote
  #2  
Old 12-05-2012
Member
 
Join Date: Nov 2010
Posts: 366
Re: How does Time Machine works in OS X Lion

As far as I know that the Time machine on Mac Os X is greatly oversimplified, but here is the thing about how it works:
  • To check it yourself, First Create File A and File B, and run an initial backup
  • After that delete File A and create file C, and run another
  • Now go the backup folders via the Finder, there you will see some kind of illusion happened.
  • You will see two copies of File B, but there aren’t. The backup folder contains a version of the contents of your system and it is only at the time of backup. When the system is out of space or low on space, the Time Machine can delete your first backup but the full versions backups remain untouched. All its hard links are deleted but not the actual copies
Reply With Quote
  #3  
Old 12-05-2012
Member
 
Join Date: Jun 2011
Posts: 566
Re: How does Time Machine works in OS X Lion

In Mac OS X Lion, Apple has implemented several changes in Time Machine. From now on the local hard disk which is used at the time the back-up position is not available. Changes you make on your MacBook in a cache folder with the default intervals 1 per hour for the past 24 hours, 1 per day for the past month. This local cache is automatically sent to the Time Machine backup location will move when it becomes available again.
Reply With Quote
  #4  
Old 17-05-2012
Member
 
Join Date: Oct 2010
Posts: 177
Re: How does Time Machine works in OS X Lion

The system is so simple, that simplicity that just turns against the system in one aspect, which in turn becomes the only problem of the method developed by Apple. The only test that makes Time Machine when to back up a file is that this has changed recently, the problem with using this method occurs with large files or databases. Any small change in these files affects an amendment to its creation date and so many kb few can become modified Mb or Gb extra time to keep a copy of those files. Apple is fully aware of the fault and why certain programs were modified to not be affected. When we make a copy of iPhoto Time Machine, do not copy the entire library, only the files you've added or modified. Unfortunately this operation "optimal" only occurs in these programs, not individual files or databases created by us.
Reply With Quote
  #5  
Old 15-06-2012
Daizy
 
Posts: n/a
Re: How does Time Machine works in OS X Lion

When you connect a new disk to Mac OS X Lion to , a message appears asking if you’d like to use the disk to back up your files. Time Machine use this disk(called time capsule) for backups and start automatically backs up your entire Mac. yes but,. It takes incremental backup in which only the files that have been modified since last full back up are backed up. It is a nice backup utility.
Reply With Quote
Reply

  TechArena Community > Software > Operating Systems
Tags: , , , ,



Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads for: "How does Time Machine works in OS X Lion"
Thread Thread Starter Forum Replies Last Post
Can I restore Firefox on Mac OS X Lion via Time Machine Backup BobTurner Windows Software 5 13-05-2012 03:51 PM
Time machine/capsule not working in Mac OS X Lion – Getting error 111 Parnell Operating Systems 10 21-02-2012 06:50 AM
After Lion upgrade Time Machine backups not dependable JustM3 Operating Systems 3 09-12-2011 09:35 PM
If time machine is enabled, Mac OS X Lion Crashes Hasrat$ Operating Systems 6 04-11-2011 10:31 PM


All times are GMT +5.5. The time now is 07:04 PM.