Adaptec CDP-00278-02-A Betriebsanweisung Seite 118

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RAID 10 Logical Drives
A RAID 10 logical drive is built from two or more equal-sized RAID 1 logical drives. Data in a RAID 10
logical drive is both striped and mirrored. Mirroring provides data protection, and striping improves
performance.
Drive segment size is limited to the size of the smallest disk drive in the logical drive. For instance, an
array with two 250 GB disk drives and two 400 GB disk drives can create two mirrored drive segments
of 250 GB, for a total of 500 GB for the logical drive, as shown in this gure.
Unused Space = 150 GB
Disk Drive 1
Disk Drive 2
Disk Drive 3
Disk Drive 4
250 GB
250 GB
400 GB
400 GB
Drive Segment Size
(Smallest Disk Drive)
Disk Drive 2
Disk Drive 3
Disk Drive 4
Disk Drive 1
Unused Space = 150 GB
Disk Drives in Logical Drive
RAID 10 Logical Drive = 500 GB
4991 3 . . .
5002 4 . . .
4991 3 . . .
5002 4 . . .
118Proprietary and Condential to PMC-Sierra, Inc.
Document No.: CDP-00278-02-A Rev. A, Issue:
maxView Storage Manager User's Guide
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