Raid 1 Enhanced Logical Drives - Adaptec CDP-00278-02-A User Manual

250 GB
Disk Drive 1
Disk Drive 2 400 GB
Disk Drives in Logical Drive

RAID 1 Enhanced Logical Drives

A RAID 1 Enhanced (RAID 1E) logical drive—also known as a striped mirror—is similar to a RAID 1 array
except that data is both mirrored and striped, and more disk drives can be included. A RAID 1E logical
drive can be built from three or more disk drives.
In this example, the large bold numbers represent the striped data, and the smaller, non-bold numbers
represent the mirrored data stripes.
Disk Drive 1
400 GB
Disk Drive 2 400 GB
Disk Drive 3 400 GB
Disk Drives in Logical Drive
Proprietary and Confidential to PMC-Sierra, Inc.
Document No.: CDP-00278-02-A Rev. A, Issue:
Drive Segment Size
(Smallest Disk Drive)
Disk Drive 1 1 – 250
Disk Drive 2 1 – 250
RAID 1 Logical Drive = 250 GB
Disk Drive 1
3
Disk Drive 2
1
Disk Drive 3
2
RAID 1E Logical Drive = 600 GB
maxView Storage Manager User's Guide
Unused Space = 150 GB
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