SUPER MICRO Computer LSI 2108/2208 user manual RAID 60 Example, RAID RAID 6RAID

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Chapter 1: Introduction to the LSI MegaRAID Software Utility

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.

RAID 60

RAID 0

RAID 6RAID 6

Drive A

Drive B

Drive C

Drive D

Drive E

Drive F

Drive G

Drive H

 

 

 

 

Segment 1

Segment 2

Parity (Q1-Q2)

Parity (P1-P2)

Segment 3

Segment 4

Parity (Q3-Q4)

Parity (P3-P4)

Segment 8

Parity (Q3-Q4)

Parity (P3-P4)

Segment 7

Segment 6

Parity (Q5-Q6)

Parity (P5-P6)

Segment 5

Parity (Q11-Q12)

Parity (P11-P12)

Segment 11

Segment 12

Parity (Q9-Q10)

Parity (P9-P10)

Segment 9

Segment 10

Parity (P15-P16)

Segment 15

Segment 16

Parity (Q15-Q16)

Parity (P13-P14)

Segment 13

Segment 14

Parity (Q13-Q14)

RAID 60 Example

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Contents USER’S Manual Page Manual Organization About This ManualConventions Used in This Manual Headquarters Contacting SupermicroEurope Asia-PacificPreface Table of Contents Overview of the LSI 2108/2208 SAS Controller Features of the LSI 2108/2208 Controller6Gb/s SAS Interface High PerformanceFunctions of the LSI MegaRAID Utility Drive Features Supported by the LSI MegaRAID UtilityRAID 0 Example RAID Levels Supported by the 2108/2208 ControllerRAID 1 Example RAID 5 Example RAID 10 ExampleRAID 6 Example RAID 50 ExampleRAID RAID 6RAID RAID 60 ExamplePage Adapter Selection Using the LSI MegaRAID Configuration UtilityLSI MegaRAID Main Screen LSI Configuration Utility Main ScreenController Selection Advanced Software OptionsController Properties Controller InformationA.R.T DescriptionNCQ Virtual Drives Scan DevicesVirtual Drive Properties Drives DrivesConfiguration Wizard Add Configuration Adding a ConfigurationAdd Drives Configuring Drives ManuallySpan Definition Virtual Drive Definition Configuration Preview Physical View Logical ViewLogical View Event Information EventsExit