Host throughput

Use this page to view host throughput statistics for the IBM® TS7700 Grid.

Use this page to view statistics for each cluster, vNode, host adapter, and host adapter port in the grid. At the top of the page is a collapsible tree that allows the user to view statistics for a specific level of the grid and cluster.

Click the grid hyperlink to display information for each cluster.
Click the cluster hyperlink to display information for each vNode.
Click the vNode hyperlink to display information for each host adapter.
Click a host adapter link to display information for each of its ports.

The host throughput data is displayed in two bar graphs and one table. The bar graphs represent raw data coming from the host to the host bus adapter (HBA) and for compressed data going from the HBA to the virtual drive on the vNode.

In the table, the letters in the heading correspond to letter steps in the diagram above the table. Data is available for a cluster, vNode, host adapter, or host adapter port.

Note: Refer to the topic Data storage values in the Related Information section for additional information concerning the use of binary prefixes.

Cluster/vNode/Host Adapter/Host Adapter Port: Cluster or cluster component for which data is being displayed.
Compressed Read (A): Amount of data read between the virtual drive and HBA.
Raw Read (B): Amount of data read between the HBA and host.
Read Compression Ratio: Ratio of raw data read to compressed data read.
Compressed Write (D): Amount of data written from the HBA to the virtual drive.
Raw Write (C): Amount of data written from the host to the HBA.
Write Compression Ratio: Ratio of raw data written to compressed data written.

For information about the steps you can take to achieve peak network performance, refer to IBM® IBM TS7700 Series Best Practices - Understanding, Monitoring and Tuning the TS7700 Performance, WP101465, available from the TechDocs link in the Related information section.