Examine this MDAM output: Which two aspects can be determined from this output?
A.
An extra device was added to this RAID set to increase its size.
B.
A RAID device failed and has been replaced with the hot spare.
C.
A new RAID device was just added to replace a failed one.
D.
Read and write performance is currently not optimal on this RAID set.
E.
Only write performance is currently not optimal on this raid set.
Explanation: