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2 SSDs - 2nd does not perform

Raido
By Raido
in Storage Devices
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Go to solution Solved by Archangel1994,

Only 1 of the disks can be in RAPID mode at any given time so you have to choose which one you want in rapid mode.

Posted

Hello everyone,

 

long time lurker here, i love your forum :)

I would very much appreciate it if anyone could give me some input on my problem here:

 

I currently own 2 SSDs:

 

Samsung 840 EVO 250GB

Samsung 840 EVO 500GB

 

The 250GB SSD is about a year old and has performed 2 fresh system installations so far. Its my current OS drive.

The 500GB SSD is about 1-2 months old.

Both are connected via SATA 3 (6GB/s) and both run in AHCI Mode as i havent bothered about settting up RAID0 yet.

 

Here is a the Benchmark that i dont understand:

 

TOP = 250GB

BOTTOM = 500GB

 

4c406f0e5f.png

 

So as you can see, the 500GB SSD does not perform anywhere as good as the 250GB SSD.

Here are my specifications if needed:

 

CPU - i5 4690K @ 4500mhz 

Mboard - Gigabyte Z97X-UD3H-BK

RAM - 2 x 4 gigs of Kingston HyperX Fury @ 1600mhz

GPU - Gigabyte 780ti Windforce OC

 

Its quite a new build, all into a fractal r4 define. I am really enjoying it so far, even though i expected a better OC on the i5.

 

Feel free to ask for further information.

 

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https://linustechtips.com/topic/216501-2-ssds-2nd-does-not-perform/
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Only 1 of the disks can be in RAPID mode at any given time so you have to choose which one you want in rapid mode.

RIG: I7-4790k @ 4.5GHz | MSI Z97S SLI Plus | 12GB Geil Dragon RAM 1333MHz | Gigabyte G1 Gaming GTX 970 (1550MHz core/7800MHz memory) @ +18mV(Maxed out at 1650/7800 so far) | Corsair RM750 | Samsung 840 EVO 120GB, 1TB Seagate Barracuda | Fractal Design Arc Midi R2 (Closed) | Sound Blaster Z                                                                                                                        Getting: Noctua NH-D15 | Possible 250GB Samsung 850 Evo                                                                                        Need a console killer that actually shits on every console? Here you go (No MIR/Promo)

This is why you should not get an FX CPU for ANY scenario other than rendering on a budget http://linustechtips.com/main/topic/286142-fx-8350-r9-290-psu-requirements/?p=3892901 | http://linustechtips.com/main/topic/266481-an-issue-with-people-bashing-the-fx-cpus/?p=3620861

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Disable Rapid mode (It also eats some RAM to boost shit you'll never notice, not gaming, not encoding, pretty much a placebo) and both will be at their rated speeds and spec.

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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Wow. Fast and Easy. I guess i have to deal with it then. What happens when i setup Raid0 then? Will this limitation hinder the overall performance?

You don't deal with it.

You disable it with Samsung's Magician Software (Left hand info panel, bottom....Rapid Mode, disable, restart, Awesome)

Once disabled, you restart, re-run those performance tests, it will be back to normal. Plus Rapid DOES NOTHING to performance.

 

When you setup Raid0, Samsung's software won't recognize your drives as they get relabeled and then the software cannot see them for what they are.

So yo may as well un-install it for Raid0.

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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Wow. Fast and Easy. I guess i have to deal with it then. What happens when i setup Raid0 then? Will this limitation hinder the overall performance?

 

RAID size and performance is restricted to the smallest/slowest drive in the array. You don't want to put those two drives in RAID.

BUILD LOGS [ Serious Black ] [ Project Lumos ] [ SrsB ]

 

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RAID size and performance is restricted to the smallest/slowest drive in the array. You don't want to put those two drives in RAID.

Yeah I forgot that too, tis 4am after all.

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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Is there really any advantage to rapid mode? If your just web browsing/gaming?

Zero performance advantage in ANY APPS that I've tested bar SSD Benching

And I ran everything under the sun when it was released.

What improved..? Disk based Benchmarks.

What else? Cannot tell, it's THAT meaningless.

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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RAID size and performance is restricted to the smallest/slowest drive in the array. You don't want to put those two drives in RAID.

 

Hold on. I thought when i put these essentially identical SSDs (apart from the 250GB vs 500GB size) together id have a 750GBish RAID that benefits from faster read and write speed because it is sortof dual channel?

What am i missing here?

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Hold on. I thought when i put these essentially identical SSDs (apart from the 250GB vs 500GB size) together id have a 750GBish RAID that benefits from faster read and write speed because it is sortof dual channel?

What am i missing here?

 

I'm sorry to inform you that you were mistaken. If you set your two current drives in a RAID0 array (for instance) you will only see 500GB of total storage and the performance of your slowest drive (most likely the 500GB drive).

 

SSD's in RAID0 receive much of a performance increase in real world processing. Booting your OS takes longer because you also have to load the RAID controller.

BUILD LOGS [ Serious Black ] [ Project Lumos ] [ SrsB ]

 

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I'm sorry to inform you that you were mistaken. If you set your two current drives in a RAID0 array (for instance) you will only see 500GB of total storage and the performance of your slowest drive (most likely the 500GB drive).

 

I have two 250GB SSD's in RAID0 and to be honest it doesn't make much of a difference. 

This.

I HAD two 256GB 840 Pro's, Bench's were Awesome, however realworld felt ZERO difference, Windows loaded just as insanely fast, no faster, Games the same (one or two exceptions, still not noteworthy) and most of it doesnt come into play.

What did get faster, Steam Verification, Origin Repairs, Stuff like that.. Scanning files were fast as hell, but no extra speed was SEEN visually bar those few tidbits.

Maximums - Asus Z97-K /w i5 4690 Bclk @106.9Mhz * x39 = 4.17Ghz, 8GB of 2600Mhz DDR3,.. Gigabyte GTX970 G1-Gaming @ 1550Mhz

 

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