The following job interview question test interviewee’s knowledge and understanding of various Storage Device Management Techniques. The focus is on interviewee’s ability to debug a typical problem seen in the data center in a step-by-step manner. Here is a problem statement:

In the above setup, application were running on a Server which is connected to a storage array through a SAN cloud. After running smoothly for few days, the application reported slowness in response for IO initiated from the server. List down all the possibilities of slowness from device management perspective.