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Q:
How does the FastTrak TX2000 RAID controller provide storage and/or data
protection with their arrays?
A:
FastTrak TX2000 implements three different types of RAID levels as follows:
RAID 0 (stripe)
For capacity -- The FastTrak TX2000 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 TX2000, 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 TX2000 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 TX2000 array will write data at the rate of
the slowest HDD in the array. The FastTrak TX2000 array will read data at twice the rate
of the slowest HDD in the array.
JBOD (spanning)
For capacity -- The FastTrak TX2000 array will combine the sizes of the HDDs in the
array. As soon as one HDD is filled to capacity, the next HDD will automatically be used.
For sustained data transfers -- There is no performance increase with spanning (reading
or writing).
FastTrak TX2000™ Series User Manual
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