Space left on main drive vs performance

Hi everyone,
I currently have 49gb free on ny system drive. I am considering installing some new software etc, that is going to take up another 25gb, leaving me about 20-24gb free. How will just haveing this amount of space left affect OSX's performance, if at all?
I ask becasue FCP is a vital use for this computer, and although all my editing takes place on external FW400 drives, I need to keep this machine as up to scratch as possible.
Any advice would be great, thanks, Adam.

Hi Adam,
A rule of thumb is not to let any drive get more than 85% full. This can vary a bit with larger drives but OS X uses VM to a great extent. Strange things start happening as a drive gets low on free space.
-mj
[email protected]

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Hello.
Thanks for having the time to read my post.
Recently, I was trying to Dualboot Windows 7 with another OS just to test something out(The Operating system was horrible.)
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Why is it free space instead of unallocated space? I guess the drive you have deleted is a logical drive in extended partition. You can try to right-click the free space to deleted it again. If there is no partitions, locating between C drive and unallocated
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Solution2: Extend partition with free partition manager software.
Resources:
Free disk and partition backup software: http://www.aomeitech.com/aomei-data-backuper.html
Free partition manager software: http://www.disk-partition.com/free-partition-software.html
i hope it'll help you!

Space left on main drive vs performance

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