RAID Calculator and details LINK

Free RAID calculator - caclulate RAID array capacity and fault tolerance.

RAID calculator - online array characteristics estimation tool

RaidCalc - Raid Disk Space Utilization Calculator - Raid, RAID, Redundancy, Performance - iBeast Business Solutions

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Move Exchange Stores to a Different Disk

How to move Exchange databases and logs in Exchange Server 2003

RAID types (levels) reference