RAID 10 characteristics:
Groups n disks as one large virtual disk with a capacity of (n/2) disks, where n is an even integer.
Mirror images of the data are striped across sets of physical disks. This level provides redundancy
through mirroring.
When a disk fails, the virtual disk still works. The data is read from the surviving mirrored disk.
Improved read performance and write performance.
Redundancy for protection of data.
Comparing RAID Level Performance
The following table compares the performance characteristics associated with the more common RAID
levels. This table provides general guidelines for choosing a RAID level. Evaluate your specific
environment requirements before choosing a RAID level.
Table 25. RAID Level Performance Comparison
RAID Level Data
Availability Read
Performanc
e
Write
Performanc
e
Rebuild
Performanc
e
Minimum
Disks
Required
Suggested
Uses
RAID 0 None Very Good Very Good N/A N Noncritical
data.
RAID 1 Excellent Very Good Good Good 2N (N = 1) Small
databases,
database
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