GPFS is recommended when additional levels of control are required. Which of the following requirements can
only be supported by GPFS?

A.
There is a requirement where logical isolation and physical isolation need to be supported

B.
There is a requirement for separate clusters for analytics and databases

C.
There is a need to support placing a MapReduce split on one local disk

D.
There is a need to run the NameNode in a separate high availability environment

Explanation:
https://www.ibm.com/support/knowledgecenter/SSPT3X_3.0.0/
com.ibm.swg.im.infosphere.biginsights.product.doc/doc/over_filesystem_comparison.html