UltraTrak100 TX4 and UltraTrak100 TX8 User Manual
JBOD (SPANNING)
In a Spanning array, the disk array capacity is equal to the sum of all drives, even if the drives are of different capacities. Spanning stores data onto a drive until it is completely filled then proceeds to store data on to the next drive in the array.
There are no performance or fault tolerance array features in this type of array. When a disk member fails, the entire array is offline.
Figure A6: Spanning uses full capacity of drives
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