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Sabertooth 990FX RAID 0 SSD not working?

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July 22, 2013 5:57:22 PM

I have a Asus Sabertooth 990FX Motherboard. Basically want to create raid with 2 SSDs. The SSD's I have got is Samsung SSD 840 Pro 512gb and the other 256gb. I create the raid 0, but when I press crt + f, and make the raid 0 the size of the drives is 509.99gb. how comes it doesnt use the full capacity?

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a b G Storage
July 22, 2013 6:07:05 PM

if you RAID 2 HDD/SDD and they don't have the same capacity, the RAID will be limited to the smaller drive (256gb in this case so 256 X2 = 512gb or about)

The rest of your second drive can be assigned in the windows device manager as a separate 256gb (minus format and raid info so about 200gb)
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July 22, 2013 6:10:09 PM

spawnkiller said:
if you RAID 2 HDD/SDD and they don't have the same capacity, the RAID will be limited to the smaller drive (256gb in this case so 256 X2 = 512gb or about)

The rest of your second drive can be assigned in the windows device manager as a separate 256gb (minus format and raid info so about 200gb)




SO what your saying is that the 2 SSDs have to be same capacity to have full capacity?

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a c 813 G Storage
July 22, 2013 6:16:38 PM

yes. Raid0 gets its speed by splitting the data between the two drives. You cant split if the other drive is out of room. <grin>

There is a quasi raid mode called jbod that can concatenate two drives (put them together end-to end) and give you full storage space but with the speed of a single drive. Data is not split to improve throughput like raid0 is.

I did not check if your board supports jbod mode but being a 990 bd - it should.
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July 22, 2013 6:21:06 PM

popatim said:
yes. Raid0 gets its speed by splitting the data between the two drives. You cant split if the other drive is out of room. <grin>

There is a quasi raid mode called jbod that can concatenate two drives (put them together end-to end) and give you full storage space but with the speed of a single drive. Data is not split to improve throughput like raid0 is.

I did not check if your board supports jbod mode but being a 990 bd - it should.




Thanks alot, much appreciated

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