Chapter 1: Introduction to the LSI MegaRAID Software Utility
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RAID 10 (St Mirroring)
RAID 10 combines RAID 0 and RAID 1 by fi rst breaking down data into smaller
segments and stripping these segments to each RAID1 set. Each RAID 1 set,
then duplicates its data to its mirrored drive.
RAID 10 provides the best RAID performance and best data security.
RAID 10 Requires 2, 4 or 6 Disk Drives
RAID 10 Example with 4 Disk Drives
Striping: Data Striping Across Drive A & Drive B
Drive A
Drive B
Segment 1
Segment 2
Segment 3
Segment 4
Segment 5
Segment 6
Segment 7
Segment 8
Mirroring: Coping Data
from Drive A to Drive C
Mirroring: Copying Data from
Drive B to Drive D
Drive A
Drive C
Drive B
Drive D
Segment 1
Duplicate Copy of
Segment1
Segment 2
Duplicate Copy of
Segment2
Segment 3
Duplicate Copy of
Segment3
Segment 4
Duplicate Copy of
Segment4
Segment 5
Duplicate Copy of
Segment5
Segment 6
Duplicate Copy of
Segment6
Segment 7
Duplicate Copy of
Segment7
Segment 8
Duplicate Copy of
Segment8
