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RAID - Redundant Array of Inexpensive Disks

You'll be introduced to concepts relating to redundancy and fault tolerances as they're applied to hard drives.

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Created Date 03.26.15
Last Updated 03.26.15
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  • This point of failure disables the entire system if it no longer functions.
  • A way of addressing single point of failure issues by building excess safeguard capacities.
  • Type of computer that plays a key role in the network and has a negative impact if shut down.
  • Often the first components in a server or computer to fail. Organizations often keep spares on hand. (2 words)
  • Multiple hard disks are used in a system to increase storage reliability, performance, or both. (acronym)
  • This level of RAID uses striping to write a data set to multiple hard drives. A performance is gained.
  • This level of RAID uses disk mirrors to duplicate data to multiple hard drives. Redundancy is gained.
  • This level of RAID distributes parity bits across all drives so if one fails, it can be rebuilt.
  • A nested RAID level. A mirrored array whose segments are RAID0 arrays. Used to achieve high data transfers.

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