Space on my hard drive:

Hi all,
I have a Macbook and was wondering how to free up space on my hard drive. A guy at the Mac store here in Ottawa suggests moving stuff to my back up drive. What should I move? How do I move it there? I have 15 Gb free on my hard drive - should I even be concerned?
Any suggestions?
Thanks,
Richard

As a rule of thumb you need 10 GBs or 15% of your hard drive's capacity as free space whichever is greater.
Your choices are:
1. Install a larger hard drive in your computer.
2. Purchase another external drive to which you can move data off of the main hard drive.
3. Delete data files you no longer need.
4. Repartition your existing backup drive to accommodate both a backup volume and a storage volume.
Do not copy files to your backup drive to free up space. As soon as you delete them from your main hard drive your backup program will delete them from the backup drive, and they will be lost. If you really need to move stuff to the backup drive, then you should re-partition it and make another volume to use for storage. You would then have two volumes/partitions on the drive - one for backup and one for storage. Your backup partition must be large enough to backup your entire main hard drive. If you use Time Machine then your backup partition should be at least twice the size of your main hard drive.

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