
292 DS8800 Performance Monitoring and Tuning
The most important metrics for determining whether a SAN bottleneck exists are the Total
Port Data Rate, and the Port Bandwidth Percentages (Send, Receive, Overall).
Tivoli Storage Productivity Center Topology Viewer
Tivoli Storage Productivity Center provides a tool called Topology Viewer for viewing the
connectivity in an environment. Figure 7-49 shows an example of this feature. This example
shows the connectivity between the host x346-tic-5 to the switch and from the switch the
back-end connections. Additional detail can be provided by drilling down on each of the paths.
Alerts for the component ...