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having issues with SSD's in RAID 0

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April 9, 2014 7:17:19 AM

dual SAMSUNG EVO 840 SSD's (120 GB each) in RAID 0

BIOS setting is set to RAID, on startup it reads both SSD's as part of the RAID volume on the Intel RST page

problem: I only have 111 GB total storage.....

should it not be closer to 240?

does anyone have any ideas?

More about : issues ssd raid

a c 91 G Storage
April 9, 2014 7:35:19 AM

Are you sure it's not set up for raid 1?

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April 9, 2014 7:38:21 AM

im sure

it lists the 2 drives as member volumes of a RAID0 array (stripe)

im giving this info from memory as im at work and not on my PC.. but that was the first thing i checked
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a b G Storage
April 9, 2014 7:59:12 AM

111 GB is ok for a single drive, when RAID 0 is working properly you should have around 222 GB
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April 9, 2014 8:06:59 AM

mad-max79 said:
111 GB is ok for a single drive, when RAID 0 is working properly you should have around 222 GB


Yea I said that in my original post..

Customer support at Samsung says that there is no measurable advantage to setting SSD's in RAID0... Can anyone confirm?
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a c 154 G Storage
April 9, 2014 8:46:21 AM

Yes, they are right. I have the SSD in riad0 because I need more space so I got othe for raid. In real world they have almost same performances, but the raid0 is look very good in benchmark score.
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April 9, 2014 8:48:16 AM

cin19 said:
Yes, they are right. I have the SSD in riad0 because I need more space so I got othe for raid. In real world they have almost same performances, but the raid0 is look very good in benchmark score.


Ok well that's good to know...
I get no benefit from having the RAID0 currently because it's not giving me extra storage...

GG I guess a format is coming
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a c 920 G Storage
April 9, 2014 6:45:00 PM

it really sounds like you either have it at raid 1 and didnt catch that or only set a partition to use 50% of the space. Run diskmgmt.msc to see if theres unallocated space.

but yeah, the two advantages you get from raid0 is larger capacity and much higher sequential I/o which is not important to most users.
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