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How important is unpartitioned space?

post #1 of 6
Thread Starter 
I keep reading that Garbage Collection for a SandForce SSD greatly benefits from some unpartitioned space - 10 to 15 % is what I hear is optimum. Is this correct?
Is it really necessary?
I used to have an OCZ Vertex 2E 120GB SSD and never did this and now have an OCZ Vertex 3 120GB SSD and have just started doing it (after hearing many say it was necessary). When I was going to install Windows on the SSD, I basically selected the full unpartitioned space and created a 92.6GB partition, leaving 18.4GB or so unpartitioned (about 15%).
    
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post #2 of 6
Nah, it's not necessary because they leave plenty of hidden space that's used (for wear-leveling). For about 99% of SSD owners, there's more than enough space.

This was more important back when the Indilinx controller was the hottest controller, but now it's almost nothing.
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post #3 of 6
Thread Starter 
Oh right. I better extend my partition to include those missing GBs then!
Thanks for the response.
    
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post #4 of 6
Quote:
Originally Posted by Gib007 View Post
Oh right. I better extend my partition to include those missing GBs then!
Thanks for the response.
You're welcome, Gib007!
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post #5 of 6
Quote:
Originally Posted by Gib007 View Post
Oh right. I better extend my partition to include those missing GBs then!
Thanks for the response.
Unpartitioned space is just an artificial limit that an user could create. However, I don't see the point. The wear-leveling and use of clean blocks occurs even if the space is part of a partition. You might as well have the space available in case you do it need it.

There's no performance difference in creating a 50GB partition on 60GB SSD or just not using more than 50GB regularly.
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Unpartitioned space is just an artificial limit that an user could create. However, I don't see the point. The wear-leveling and use of clean blocks occurs even if the space is part of a partition. You might as well have the space available in case you do it need it.

There's no performance difference in creating a 50GB partition on 60GB SSD or just not using more than 50GB regularly.
Fair enough, thanks. I've just extended my partition accordingly!
    
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