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SSD Overprovisioning

Quasimodem
Level 10
Any thoughts on SSD Overprovisioning? I never did it before, but upon installing Samsung Magician to check the S.M.A.R.T. stats for my SSD's I noticed the section and allocated the 47.6gb it recommended... Much I've read says it's not necassary as the controller already has enough space allocated for it. Any thoughts on it?

G75VW-DS73-3D | 670m 3GB | 32GB RAM | 1TB RAID-0 2 x 830 512GB SSD DualBoot | Killer-N 1103 WiFi
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7 REPLIES 7

cheek
Level 9
10% seems to be the magic number. sorta like a cache to reduce write. its unallocated space.

cheek wrote:
10% seems to be the magic number. sorta like a cache to reduce write. its unallocated space.


So I'm guessing on my other drive with Linux I should just unallocate 47.6 gb?
G75VW-DS73-3D | 670m 3GB | 32GB RAM | 1TB RAID-0 2 x 830 512GB SSD DualBoot | Killer-N 1103 WiFi

rewben
Level 13
from what i've learned, 25% is better. i never tried 10%.

rewben wrote:
from what i've learned, 25% is better. i never tried 10%.


25%? Dang, that's 117.5gb unallocated...
G75VW-DS73-3D | 670m 3GB | 32GB RAM | 1TB RAID-0 2 x 830 512GB SSD DualBoot | Killer-N 1103 WiFi

rewben
Level 13
yeah :// check this: http://anandtech.com/show/6884/crucial-micron-m500-review-960gb-480gb-240gb-120gb/3

you can click on the size button to check out the different graphs.

edit: to be frank, there is no such need to sacrifice that much space. i only use about 10% too.

cheek
Level 9
i should think 25% is a bit overkill. for benchies maybe. for optimum performance yes. unless u have a 960gb ssd!. man i use to own a 40 gb intel ssd. and i was so proud then being one of the first to own a ssd... how times have progress!
http://www.overclock.net/t/1179518/seans-ssd-buyers-guide-information-thread
some where there on the third post. mentions first level and 2nd level. perhaps most people believes that 7 percent is already unallocated and not available to the user. if samsung makes u do that 10 percent it means that is the 3rd level. for me endurance is not that important. performance is more crucial. so if i can spare it...
i am not really sure how the algorithm works with this cache. but for his example a 500 gb ssd. 25 would be a whooping 125 gb cache. thats just sounds a lot. on a non server os. 7 to 20 is my opinion.

cheek wrote:
i should think 25% is a bit overkill. for benchies maybe. for optimum performance yes. unless u have a 960gb ssd!. man i use to own a 40 gb intel ssd. and i was so proud then being one of the first to own a ssd... how times have progress!
http://www.overclock.net/t/1179518/seans-ssd-buyers-guide-information-thread
some where there on the third post. mentions first level and 2nd level. perhaps most people believes that 7 percent is already unallocated and not available to the user. if samsung makes u do that 10 percent it means that is the 3rd level. for me endurance is not that important. performance is more crucial. so if i can spare it...
i am not really sure how the algorithm works with this cache. but for his example a 500 gb ssd. 25 would be a whooping 125 gb cache. thats just sounds a lot. on a non server os. 7 to 20 is my opinion.


you're right, @cheek; 25% is really overkill. some times I wonder, why not they just add another extra 128gb chip just for that on top of the 500gb? (lol! I know I know I'm just saying :D)