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Re-partition to the front of the disk (the fastest part)?

post #1 of 8
Thread Starter 
Atm I have 500GB array from two 250GB in raid0 with Vista on it... its using up about 90GB of space (leaving around 375GB free) and I want to shrink the partition to say 100GB (see below). Then I want to reformat the unallocated space (~350GB) to be used by my Windows 7 install on my SSD. I know you can use the Disk Management in device manager to do all this but I want the 350GB free space partition to be at the front of the disk (the fastest) and have the old 100GB Vista partition right at the end (in the slowest part I guess, which its ok cos I will rarely boot into it). Is this possible?

About above... just wondering when I shrink the partition to 100GB even though it is only using 90GB is 10GB a good enough buffer for windows to not spaz out? Or is it even too much can I get away with just 2-3GB buffer... I wont be installing or writing anything new to it. It will be mainly just for reading data and booting.
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Turismo
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post #2 of 8
I can't answer your first question but IIRC you have to leave 12.5% of free space for the MFT reserved zone.
post #3 of 8
Thread Starter 
Oh ok 12.5% of the 100GB partition or for the whole disk space (500GB)?
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Turismo
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post #4 of 8
The partition ;-)
post #5 of 8
Thread Starter 
Well on 90GB thats just under 13GB so 103GB should be OK?

Thing is though... the other day I got my SSD down to less than 1GB free which is less than 2% free? Or is it merely a "guided limit" and a performance thing? As in its better if you have 12.5% free than say 5% free for the MFT to use.
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Turismo
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post #6 of 8
Well to tell you the truth. I never ever ever managed to fill up 12.5% with MFT data. It's just... unreal I think. That's also why Windows 7 no longer enforces 12.5% but just uses 0 as a registry value and it grows as it gets larger. It should be better to have a continuous MFT file because a defragmented MFT causes a drop in performance but, I never really felt it. Besides almost all defragmentation programs know what to do with it
post #7 of 8
Thread Starter 
So anyone know how I can shrink a partition and move it to the back of the disk (the slowest part) and format the rest of the space and put it at the front of the disk (the fastest part)?
Turismo
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Turismo
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post #8 of 8
sorry i can't help you...
but i'm getting confused as to the front of the disk and the back of the disk...

by front i'm assuming that you are talking about the outer perimeter of the disk... cuz if not then something must be wrong

if i was to guess... i would say you would have to make clones of the OS's... completely format and partition. reinstall
by default Windows will fill from the outside(fastest part of hdd) first regardless. hence why when you first install the OS you get faster bench scores and as time goes by it gets slower cuz the benching software may no longer be reading from the outer perimeter of the disk
Edited by 808MP5 - 1/12/11 at 9:17pm
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Oneone Uapo
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