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This method has the following benefits:
•
Useful when performance and low cost are more important than data protection.
•
Has the highest write performance of all RAID methods.
•
Has the lowest cost per unit of stored data of all RAID methods.
•
All drive capacity is used to store data (none allocated for fault tolerance).
Mirroring
RAID 1 and RAID 1+0 (RAID 10)
In RAID 1 and RAID 1+0 (RAID 10) configurations, data is duplicated to a second drive. The usable
capacity is C x (n / 2) where C is the drive capacity with n drives in the array. A minimum of two drives is
required.
When the array contains only two physical drives, the fault-tolerance method is known as RAID 1.
The maximum number of drives supported for RAID 1 is 32.
Features
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