Supported RAID levels

The RAID level of a disk array determines how data is stored on the disk array and the level of protection that is provided.

If a part of the RAID system fails, different RAID levels help to recover lost data in different ways. With the exception of RAID level 0, if a single drive fails within an array, the array controller can reconstruct the data for the Failed disk by using the data stored on other hard drives within the array. This data reconstruction has little or no impact to current system programs and users. The controller supports RAID levels 0, 5, 6, 10, 5T2, 6T2, and 10T2. Not all controllers support all RAID levels. Each RAID level supported by the controller has its own attributes and uses a different method of writing data. The following information provides details for each supported RAID level.