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Chapter 1: Introduction to the LSI MegaRAID Software Utility
1-7
RAID 60
RAID 60 combines the features of RAID 6 and RAID 0. RAID 60 implements
distributed parity (two independent parity bloks per stripe in a RAID set) and disk
striping.The dual parity allows RAID 6 to survive two drive failures in each RAID 6
set without losing data. RAID 60 requires at least 8 drives. The following illustration
provides a visual example of a RAID 60 virtual drive group.
Note: In the following RAID 6 illustration, the P drives represent the RAID
5 parity scheme. The Q drives represent the second set of parity drives.
Segment 1Segment 2
Drive A
Drive B
Parity (Q1-Q2)
Parity (P1-P2)
Segment 3
Drive C
Drive D
Drive E
Segment 4
Segment 8Parity (Q3-Q4)
Parity (P3-P4)
Segment 7
Segment 6
Parity (Q5-Q6)
Parity (Q11-Q12) Parity (P11-P12)
Segment 11
Segment 12
Parity (Q9-Q10)
Parity (P9-P10)
Parity (P15-P16) Segment 15
Segment 16
Parity (Q15-Q16)
Parity (P13-P14)
Segment 13
Drive F
Parity (Q3-Q4)
Drive G
Parity (P3-P4)
Parity (P5-P6)
Segment 5
Segment 9
Segment 10
Segment 14
Parity (Q13-Q14)
Drive H
RAID 6
RAID 6
RAID 0
RAID 60
RAID 60 Example