Raid 1 (Adm) And Raid 10 (Adm) - HP ProLiant DL280 Reference Manual
Configuring arrays on hp smart array controllers reference guide
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Also See for ProLiant DL280:
- Supplementary manual (18 pages) ,
- Implementation manual (26 pages) ,
- Introduction manual (25 pages)
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Advantages:
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This method has the second highest read performance of any fault-tolerant configuration.
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No data is lost when a drive fails, as long as no failed drive is mirrored to another failed drive.
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Up to half of the physical drives in the array can fail.
Disadvantages:
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This method is expensive, because many drives are needed for fault tolerance.
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Only half of the total drive capacity is usable for data storage.
RAID 1 (ADM) and RAID 10 (ADM)
In RAID 1 (ADM) and RAID 10 (ADM) configurations, data is duplicated to two additional drives.
When the array contains only three physical drives, the fault-tolerance method is known as RAID 1 (ADM).
Drive arrays and fault-tolerance methods 107
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