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Wednesday 19 November 2014

What are RAID levels 0/1/5/10?

Level Minimum Disk Req. Performance Redundancy Suggestions
0 2 Excellent None Not recommended for critical systems
1 2 Good Excellent
5 3 Good Good Best cost effective option providing both performance and redundancy. Use this for DB that is heavily read oriented. Write operations will be slow.
10 4 Excellent Excellent If you can afford the dollar, this is the BEST option for any mission critical applications (especially databases).
Ref: http://www.thegeekstuff.com/2010/08/raid-levels-tutorial/