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First time doing RAID 0 setup - Need Help/Assistance

post #1 of 9
Thread Starter 
Hi Everyone;

I have a few simple questions hopefully that can be answered.

First of all, here is my current setup:

4790K @ 4.7Ghz @ 1.280v
Gigabyte Z97X-Gaming GT
16Gb @2400Mhz 11-13-13-30 (GeIL's EVO POTENZA).
EVGA SuperNOVA 1000W G2

Current HDD's:

ONE decade old WD 500Gb HDD (I use this as my download folder for my browsers)
ONE 2Tb WD Black HDD (I use this for games)
ONE 128GB SSD Samsung EVO 830 (I use this for OS & Programs)

AND 2 x 4Tb External Drives (irrelevant, they're outside the PC).

My plan is to buy:

2 x 250 GB Samsung EVO 750's and run them in RAID 0

First question:
Running 2 x 250Gb in RAID 0 is faster than buying the 500Gb EVO 750, correct? Almost double the speed?

Second Question:
Can I RAID 0 these two drives while keeping all other internal drives plugged into the PC too? (I might remove the 500Gb one, but I want to keep the old SSD and 2TB WD Black).

Third Question:
Do the 2 x 250 GB's combine in space to become 500Gb? Or if I run them in RAID 0, they merge and I can only use 250GB but at double the speed?

Question Four:
Is it easy to setup RAID 0 with my motherboard?

Question Five:
Is it really dangerous? Do drives fail often causing the other one to fail too?
Edited by Blackfyre - 7/15/16 at 1:23pm
post #2 of 9
Quote:
Originally Posted by Blackfyre View Post


First question:
Running 2 x 250Gb in RAID 0 is faster than buying the 500Gb EVO 750, correct? Almost double the speed?

Mmmmm,
Maybe 150%- 175% faster


Second Question:
Can I RAID 0 these two drives while keeping all other internal drives plugged into the PC too? (I might remove the 500Gb one, but I want to keep the old SSD and 2TB WD Black).

Yes. Be aware tjhey you can only set up a RAID 0 array during a Windows install.

Third Question:
Do the 2 x 250 GB's combine in space to become 500Gb? Or if I run them in RAID 0, they merge and I can only use 250GB but at double the speed?

2 x 250GB becomes 1 x 500GB

Question Four:
Is it easy to setup RAID 0 with my motherboard?

Yes. It's easy with any motherboard that supports it.

Question Five:
Is it really dangerous? Do drives fail often causing the other one to fail too?

One drive failing will not cause the other to stop working. The data on it will be unreadable/unrecoverable though, but the drive itself will be perfectly fine.

As for the chance of failure, MTBF for those drives is 1.5 million hours - that's over 170 years - they'll be obsolete in 5-10 years and you'll be replacing them with something else long before you have a failure.[/SIZE]
Edited by billbartuska - 7/15/16 at 8:11pm
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post #3 of 9
I feel the answer you received for question 2 is a little incomplete. I think the answer is true if your going to put Windows on the raid array, but if not then you can set up raid with an existing Windows installation still on your ssd.

If I remember correctly, W7 requires a registry hack to change from AHCI to Raid, but W8.1 & 10 will self fix the registry if you set Windows to boot in safe mode -> go in the bios and change from AHCI to Raid (save changes) -> then boot in safe mode -> once in Windows change back to normal boot -> re-boot go into bios press ctrl + I to enter raid setup -> choose the 2 drives to do raid 0 and your all set. Google change from AHCI to raid if you want to set up raid while keeping your existing Windows install just in case I have missed some details.
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post #4 of 9
Quote:
Originally Posted by Blackfyre View Post

Running 2 x 250Gb in RAID 0 is faster than buying the 500Gb EVO 750, correct?

In most metrics, yes. However, you are unlikely to notice the difference.

A single fast SSD is plenty fast enough for booting, general use, and most application loading to no longer be very limited by drive performance.

Personally, I don't RAID 0 SSDs unless I need them to show as one larger volume, or know ill be doing something that will really demand the extra speed.
Quote:
Originally Posted by Blackfyre View Post

Almost double the speed?

For sequential reads, if nothing else is hogging the PCH, but not most other areas.

In some situations, separate drives can be faster...such as when two different programs are performing different operations on different drives.
Quote:
Originally Posted by Blackfyre View Post

Can I RAID 0 these two drives while keeping all other internal drives plugged into the PC too?

Yes.
Quote:
Originally Posted by Blackfyre View Post

Do the 2 x 250 GB's combine in space to become 500Gb? Or if I run them in RAID 0, they merge and I can only use 250GB but at double the speed?

You'd get 500GB.
Quote:
Originally Posted by Blackfyre View Post

Is it easy to setup RAID 0 with my motherboard?

Yes, but if you want to run your OS on the RAID array, it would be easiest to reinstall it.
Quote:
Originally Posted by Blackfyre View Post

Is it really dangerous? Do drives fail often causing the other one to fail too?

Drives can fail and a failed drive will destroy most of your data...though some portion of small files below the stripe size may be recoverable from the surviving disk. Generally not as big a risk with modern SSDs as with mechanical drives, but you should always have backups, irrespective of the drive type or configuration.
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post #5 of 9
Quote:
Originally Posted by IF6WAS9 View Post

I feel the answer you received for question 2 is a little incomplete. I think the answer is true if your going to put Windows on the raid array, but if not then you can set up raid with an existing Windows installation still on your ssd.

If I remember correctly, W7 requires a registry hack to change from AHCI to Raid, but W8.1 & 10 will self fix the registry if you set Windows to boot in safe mode -> go in the bios and change from AHCI to Raid (save changes) -> then boot in safe mode -> once in Windows change back to normal boot -> re-boot go into bios press ctrl + I to enter raid setup -> choose the 2 drives to do raid 0 and your all set. Google change from AHCI to raid if you want to set up raid while keeping your existing Windows install just in case I have missed some details.
1.) Whew! Fixed that giant text!
2.) I didn't want to get into the machinations of setting up RAID 0 without doing it during an install. It's really not for the faint of heart.
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post #6 of 9
Thread Starter 
Thanks everyone for the comments.

How would gaming loading times improve if I got 2 x 250Gb vs one 500 Gb SSD? Not much? I couldn't find reviews that compare gaming loading time performance.

Might not be worth the hassle to run RAID 0 by the sounds of it.
post #7 of 9
Spinners - Yes, SSDs, not much real world benefit..
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post #8 of 9
Thread Starter 
Quote:
Originally Posted by billbartuska View Post

Spinners - Yes, SSDs, not much real world benefit..

Yeah I figured as much. I'll probably just be grabbing the 500Gb Samsung 750 Series SSD.

Thanks for all the comments. If anyone thinks I should go RAID 0 with 2x 250GB do let me know please, and why? Preferably by tomorrow.

thumb.gifthumb.gifthumb.gif
post #9 of 9
Quote:
Originally Posted by Blackfyre View Post

Quote:
Originally Posted by billbartuska View Post

Spinners - Yes, SSDs, not much real world benefit..

Yeah I figured as much. I'll probably just be grabbing the 500Gb Samsung 750 Series SSD.

Thanks for all the comments. If anyone thinks I should go RAID 0 with 2x 250GB do let me know please, and why? Preferably by tomorrow.

thumb.gifthumb.gifthumb.gif
I'd suggest that you do some Googling for RIAD results. It's kind of hard to decide what to do in the when you're uninformed!
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