儲存產(chǎn)品暨產(chǎn)業(yè)基本概要-xxxx(編輯修改稿)
2025-02-02 13:32 本頁面
【文章內(nèi)容簡介】 2 1 Disk 1 M(6) M(5) M(4) M(3) M(2) M(1) M(N) Disk 2 N Blocks Mirror N 11 10 9 8 7 6 5 4 3 2 1 Host LUN Infortrend Internal Confidential 20 RAID Basics – RAID 3 (Disk Striping with Dedicated Parity Disk) 2N1 11 9 7 5 3 1 Disk 1 12 10 8 6 4 2 2N Disk 2 P(11,12) P(9,10) P(7,8) P(5,6) P(3,4) P(1,2) P(2N1, 2N) Disk 3 N Blocks Striping Dedicated Parity Disk 2N 11 10 9 8 7 6 5 4 3 2 1 Host LUN Infortrend Internal Confidential 21 RAID Basics – RAID 5 (Disk Striping with Interspersed Parity Disk) P(2N1, 2N) 11 10 P(7,8) 5 4 P(1,2) Disk 1 12 P(9,10) 7 6 P(3,4) 1 2N1 Disk 2 P(11,12) 9 8 P(5,6) 3 2 2N Disk 3 N Blocks Striping with interspersed parity 2N 11 10 9 8 7 6 5 4 3 2 1 Host LUN Infortrend Internal Confidential 22 RAID Basics – RAID 6 (Disk Striping with Two Interspersed Parity Disk) 7 4 1 Parity 5 2 Q Parity 3 8 Q Parity 9 6 Q Host LUN 9 8 7 6 5 4 3 2 1 Infortrend Internal Confidential 23 RAID Basics – RAID 10 (RAID 0+1) 2N1 7 5 3 1 Disk 1 M(7) M(5) M(3) M(1) M(2N1) Disk 2 Mirror RAID 1 Logical Drive 8 6 4 2 2N Disk 3 M(8) M(6) M(4) M(2) M(2N) Disk 4 Mirror RAID 1 Logical Drive 2N 11 10 9 8 7 6 5 4 3 2 1 Host LUN Infortrend Internal Confidential 24 RAID Basics – RAID 30 9 5 1 Disk 1 11 7 3 Disk 2 P(9,11) P(5,7) P(1,3) Disk 3 RAID 3 Logical Drive 10 6 2 Disk 4 12 8 4 Disk 5 P(10,12) P(6,8) P(2,4) Disk 6 RAID 3 Logical Drive 4N 11 10 9 8 7 6 5 4 3 2 1 Host LUN Infortrend Internal Confidential 25 RAID Basics – RAID 50 9 7 P(1,3) Disk 1 11 P(5,7) 1 Disk 2 P(9,11) 5 3 Disk 3 RAID 5 Logical Drive 10 8 P(2,4) Disk 4 12 P(6,8) 2 Disk 5 P(10,12) 6 4 Disk 6 RAID 5 Logical Drive 4N 11 10 9 8 7 6 5 4 3 2 1 Host LUN Infortrend Internal Confidential 26 Mixing Drives with Different Capacity Disk 1 Disk 2 Disk 3 Disk 4 Disk 5 Disk 6 Maximum Common Capacity (Among all member drives) Infortrend Internal Confidential 27 RAID Parity and XOR A XOR B = P B XOR P = A A XOR P = B A” A’ A Disk 1 B” B’ B Disk 2 P(A”,B”) P(A’,B’) P(A,B) Disk 3 A” B’ P(A,B) Disk 1 B” P(A
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