What is the impact of striping on index range scans?

Since we striped our disk that our indexes are located on,
we have been showing more than thirty times the number
of rows read during index range scans.

How does disk striping (in our case using Veritas volume
manager) affect range scans?

In general, what determines how many records are read
during an index range scan?

Thanks,

Cherie Machler
Oracle DBA
Gelco Information Network

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