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Sabertooth 990FX RAID 0 SSD not working?

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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  1. Best answer
    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)
  2. 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?
  3. 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.
  4. 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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