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In the Oracle Exadata Storage System architecture, one or more storage cells can support one or more databases. Each storage cell aka target Oracle Exadata Storage Server is connected to the databases via Infiniband switch and ethernet switch. If data transmission fails between the databases and the target storage server, user requests may be delayed and could not be served instantly. On the other hand, the load on an infiniband/ethernet interface may increase rapidly. To avoid such load balancing irregularities and to ensure smooth transmission of data between the databases and the storage server, it is essential to monitor the data transmission through the infiniband interfaces and the ethernet interfaces. The OraExaCeIOTest helps administrators in this regard!

This test reports the rate at which data was transmitted through/received from the infiniband interfaces and ethernet interfaces. Using this test, administrators can figure out load balancing irregularities while data is transmitted through infiniband interfaces and ethernet interfaces.

Outputs of the test: One set of results for the target Oracle Exadata Storage Server that is being monitored

Measurement	Description	Measurement Unit	Interpretation
receivedInfiniBandData	Indicates the rate at which data was received from infiniband interfaces.	MB/sec	Compare the value of this measure with Ethernet interfaces received data to figure out the type of interface through which maximum amount of data was received.
transmitInfiniBandData	Indicates the rate at which data was transmitted through infiniband interfaces.	MB/sec	Compare the value of this measure with Ethernet interfaces transmitted data to figure out the type of interface through which maximum amount of data was received.
receivedEthernetData	Indicates the rate at which data was received from ethernet interfaces.	MB/sec	Compare the value of this measure with InfiniBand interfaces received data to figure out the type of interface through which maximum amount of data was received.
transmittedEthernetData	Indicates the rate at which data was transmitted through ethernet interfaces.	MB/sec	Compare the value of this measure with InfinBand interfaces transmitted data to figure out the type of interface through which maximum amount of data was received.