Home Miscellaneous What is RAID 10?
What is RAID 10? PDF Print E-mail
Written by Siva   
Wednesday, 10 November 2010 16:08

RAID 10 is like RAID 0 + RAID 1. RAID 0 is excellent performance, RAID 1 is more redundancy. So here RAID 10 is combination of both.

As I know Oracle RAC sugest to keep data in RAID 10.

  • Minimum 4 disks.
  • Excellent performance ( as blocks are striped )
  • Excellent redundancy ( as blocks are mirrored )
  • If you can afford the dollar, this is the BEST option for any mission critical applications (especially databases).

 

RAID Levels 0+1 (01) and 1+0 (10)

Common Name(s): RAID 0+1, 01, 0/1, "mirrored stripes", "mirror of stripes"; RAID 1+0, 10, 1/0, "striped mirrors", "stripe of mirrors". Labels are often used incorrectly; verify the details of the implementation if the distinction between 0+1 and 1+0 is important to you.

Technique(s) Used: Mirroring and striping without parity.

Description: The most popular of the multiple RAID levels, RAID 01 and 10 combine the best features of striping and mirroring to yield large arrays with high performance in most uses and superior fault tolerance. RAID 01 is a mirrored configuration of two striped sets; RAID 10 is a stripe across a number of mirrored sets. RAID 10 and 01 have been increasing dramatically in popularity as hard disks become cheaper and the four-drive minimum is legitimately seen as much less of an obstacle. RAID 10 provides better fault tolerance and rebuild performance than RAID 01. Both array types provide very good to excellent overall performance by combining the speed of RAID 0 with the redundancy of RAID 1 without requiring parity calculations.

Last Updated on Wednesday, 10 November 2010 16:42
 
 

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