Dave.. but do we know if the extents will be contigious for sure with RAID?.. if not we still have issues with FTS.. dont we?
Extents is a logical structure which will want the blocks in it to be contigious but cannot be assured how OS allocates in disk..
The rationale behind extent is to simplify the understanding of allocation process in a datafile/s.. and ofcourse it will be contigious most of the times and hence making the FTS process efficient.
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