Mirroring and Striping


Stripping and Mirroring, are the terms used in RAID technology.

When you use striping to write data to the hard disk drives in a RAID array, you divide the data and stores each parts on different drives. RAID Level 0 is the example of it.

When you use mirroring to write data to the hard disk drives in a RAID array, you copied the same data on different drives. RAID Level 1 is the example of it.

RAID 0 arrays uses striping. Smallest the strips greatest the processing performance. But in striping failure of one disk means all data gets corrupted. But we can use mirroring with striping to boost up the performance.

Striping is useful when a processing device requests data more quickly than a single storage device can provide it.

Mirroring makes the data safe. In case of disk failure same data can be recovered from the another disk, but it’s not possible in case of the striping.

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EasyExamNotes.com covered following topics in these notes.
  1. ILM
  2. Storage infrastructure
  3. Data proliferation
  4. Evolution of various storage technologies
  5. Data categorization
  6. Integrated VS Modular Array
  7. Component architecture of intelligent disk subsystem
  8. Intelligent disk subsystems overview
  9. Mapping n operations
  10. Storage system architecture
  11. RAID
  12. Hot spare
  13. Striping and Mirroring
  14. SAN security
  15. JBOD
  16. Elements of DAS,NAS,CAS,SAS
  17. Limitations of DAS
  18. Cloud vocabulary
  19. NAS security
  20. Management of DAS,NAS,CAS,SAN
  21. FC Connectivity
  22. Memory virtualization
  23. Data center concepts & requirements
  24. Network virtualization
  25. Server
  26. Architectural Framework ISM

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