Samsung 970 PRO and EVO NVMe SSD M.2 SSD information - Page 6 - Overclock.net - An Overclocking Community

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Samsung 970 PRO and EVO NVMe SSD M.2 SSD information

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post #51 of 56 (permalink) Old 02-10-2019, 05:52 AM
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Hey, anyone alive here?

Guys, I need advice, regarding over-provisioning. I've bought 970 Evo plus recently, for 1TB. OP is 10%, which is almost 100GB!
So, I know about OP, TRIM, perfomance, endurance, nand cell's replacements, etc.. But, I'm really lost regarding all this in real life, i.e. how it actually looks in "home" kind of usage.

Thus, I would like to keep some volume for myself - and since I've considered 1TB as totally needed... Simply put, I don't know how much OP space to leave.
As an example, for 1,5 years of active usage, I've wrote ~18TB of data on previous system SSD. I thought about calculating probable wearing level, but something tells me it's just stupid and won't give me any hint.
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post #52 of 56 (permalink) Old 02-10-2019, 10:27 AM
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You do not need over provisioning with TRIM supported by the OS.

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post #53 of 56 (permalink) Old 02-11-2019, 12:56 AM
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Quote: Originally Posted by GeneO View Post
You do not need over provisioning with TRIM supported by the OS.
What about cell replacement buffer? On vnand tlc?
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post #54 of 56 (permalink) Old 02-11-2019, 07:07 AM
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Quote: Originally Posted by Robostyle View Post
What about cell replacement buffer? On vnand tlc?

If you don't fill the SSD, the free space is the buffer. And in that case, since you would fill it without the OP, you would not have enough space for OP anyway.

FDR4-8086k
(22 items)
CPU
Intel 8086k 5.1/4.8 GHz @ 1.312v (AVX 0). 5/4.7 GHz @ 1.232v (AVX 1, manual), 1.248 (AVX 0, adaptive)
Motherboard
Asus Maximus X Code
GPU
MSI GTX 1070 X
RAM
32GB g.skill Trident Z RGB @ 3733 16-16-36, 1.36v
Hard Drive
Samsung 850 EVO 1TB
Hard Drive
Western Digitial Caviar Black 2 TB in USB 3.0 enclosure
Hard Drive
Western Digital Black 6 TB
Hard Drive
Western Digitial Caviar Green in USB 3.0 enclosure
Hard Drive
Samsung 960 Pro 512 GB
Hard Drive
Samsung 860 EVO 1TB
Power Supply
Seasonic Prime Ultra Titanium 750W
Cooling
Noctua NH-D15 (only middle NF-A15 Chromax)
Cooling
4 x Noctua NF-A14 Chromax black swap
Cooling
Noctua NF-F12 Chromax black swap
Case
Fractal Design R4
Operating System
Windows 10 Pro 64 bit
Monitor
NEC LCD2490WUXI-SV
Monitor
DELL P2217H
Keyboard
Cooler Master Quickfire Rapid TKL
Mouse
Logitech G602
Mouse
perixx dx-2000
Audio
On Board SupremeFX
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post #55 of 56 (permalink) Old 02-11-2019, 05:39 PM
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Well, thats no more relevant any more, since I've tried changing OP in magician....so, I thought it would give me smth like 1024GB available if I disable it manually, so it reported "10% is allocated for OP, total size is 930GB" But turned out, 930 is full capacity no matter what's OP size is. Furhtermore, despite being reported as 10%, IRL it looks like OP is set to 0% by samsung - cause setting 1% OP manually gives you 921 GB of usefull space.
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post #56 of 56 (permalink) Old 02-12-2019, 04:04 AM
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Holy cow they are expensive. I'll wait for the new tech tax to wear off, and get a HP ex920 for now, and an "old" sata3 1TB SSD for games only.

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