The tests mapped to this layer help administrators to find out the following useful metrics:
- the current status of the nodes;
- the load balancing capability of each disk on the node;
- the throughput of network and disk drives of the node;
- the load received by the nodes through each protocol;
- the rates at which the data was transmitted and received to perform the protocol operations.
Figure 1 : The tests mapped to the Isilon Cluster layer