CMMVC9304E The command failed because the driveclass does not support the specified number of rebuild areas.

Explanation
An FCM drives array cannot be created with more than 1 rebuild
area. This error can occur when
an attempt is made to expand a thin-provisioned array and to add rebuild areas to the array
simultaneously, which is not supported.

User response
If the error occurred during array creation, Retry the command, specifying the parameter
-totalrebuildareas
1.

If the error occurred during expansion of a thin-provisioned array, retry the command but do not
attempt to add rebuild areas to the array.