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Configuring the RAID write performance
If your environment requires high write performance, select a RAID type that is optimized for write
performance
The chart below shows how RAID 10, 5, 50, 6, and 60 compare to the percent write performance of RAID
0.
The data in the chart assumes that drives are limited and that drive write performance is the same as
drive read performance.
Consider the following points:
•
Write performance decreases as fault tolerance improves due to extra I/O.
•
Read performance is generally the same for all RAID levels except for smaller RAID 5\6 arrays.
The table below shows the Disk I/O for every host write:
RAID type
RAID 0
RAID 10
Disk I/O for every host write
1
2
Table Continued
Features
9
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