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RAID Types and Tradeoffs
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This chapter explains RAID types you can choose for your storage
system LUNs. If you already know about RAID types and know
which ones you want, you can skip this background information and
skip to Chapter 5. Topics are
• Introducing RAID ..............................................................................2-2
• RAID Types.........................................................................................2-4
• RAID Benefits and Tradeoffs..........................................................2-12
• Guidelines for RAID Types.............................................................2-17
• Sample Applications for RAID Types...........................................2-19
This chapter applies primarily to storage systems with storage processors
(SPs). For a storage system without SPs (a DAE-only or JBOD system), RAID
types are limited by the RAID software you run on the server. The RAID
terms and definitions used here conform to generally accepted standards.
RAID Types and
Tradeoffs