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<title>RAID level-1E (glossary)</title>

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<h2>RAID level-1E</h2>
<p>A RAID level that uses both data striping and data mirroring to distribute
  data across three or more physical drives. Data is striped across each disk
  in the pool; the first set of stripes are the data stripes, and the second
  sets of stripes are mirror copies of the first stripe, shifted one drive. It
  provides data redundancy and performance acceleration, although the usable physical
  drive space is reduced by 50 percent. </p>

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<p align="right">x-0555-HSM-00-00-EN </p>

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