FastTrak S150 TX2plus User Manual
Q:How does the FastTrak S150 TX2plus RAID controller provide storage and/or data protection with their arrays?
A:FastTrak S150 TX2plus implements three different types of RAID levels as follows:
RAID 0 (Stripe)
For capacity – The FastTrak S150 TX2plus array will be as big as the smallest HDD in the array times however many HDDs are in the array. Any larger HDDs will simply be truncated. The truncated space on the bigger HDDs will then be unusable.
For sustained data transfers – Using FastTrak S150 TX2plus, a RAID 0 array consisting of two HDDs will transfer at about twice the speed of the slowest HDD in the array. A RAID 0 array consisting of four HDDs will transfer at about three times the speed of the slowest HDD in the array.
RAID 1 (Mirror)
For capacity – The FastTrak S150 TX2plus array will be as big as the smallest HDD in the array. The larger HDD will simply be truncated. The truncated space on the bigger HDD will then be unusable.
For sustained data transfers – The FastTrak S150 TX2plus array will write data at the rate of the slowest HDD in the array. The FastTrak S150 TX2plus array will read data at twice the rate of the slowest HDD in the array.
RAID 0+1 (Stripe + Mirror)
For capacity – The FastTrak S150 TX2plus array will be twice as big as the smallest HDD in the array. The larger HDD will be truncated. The truncated space on the larger HDD will then be unusable.
For sustained data transfers – The FastTrak S150 TX2plus array will write data at twice the rate of the slowest HDD in the array. The FastTrak S150 TX2plus array will read data at twice the rate of the slowest HDD in the array.
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