Learn About RAID Levels and Performance

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Use the Array >> Change RAID Level option when application read or write percentages on a logical drive indicate that its current RAID level may not be appropriate for desired performance. Use the Performance Monitor to obtain logical drive application read and write percentages.

Applications with a high read percentage will do very well using RAID level 5 logical drives because of the outstanding read performance of the RAID 5 configuration.

However, applications with a low read percentage (write-intensive) do not perform as well on RAID 5 logical drives because of the way a controller writes data and redundancy data to the drives in a RAID 5 array. If there is a low percentage of read activity relative to write activity, you might consider changing the RAID level of an array for faster performance.

RAID Level Performance Summary

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Learn About RAID Levels and Data Protection

Changing the RAID Level of an Array

Learn About Tuning Storage Subsystem Performance

Monitoring Performance