The Array_Defaults parameter defines the default values to use for the variance and number of hot-spare drives when AUTO is specified for the Array_Mode parameter. The Array_Defaults parameter is not valid if the Array_Mode parameter is set to CUSTOM.
The value of Array_Defaults is expressed in the format: variance:hotspares, where:
hotspares is an integer that specifies the total number of hot-spare drives to create. The largest drives are chosen as hot-spare drives first. If not enough drives are available to create hot-spare drives, PRAID does not create any hot-spare drives.
Array_Defaults = 5%:1