Administrator Guide

Viewing Current IO Performance
The Charting tab is used to view and monitor current IO performance statistics for a Storage Center and associated storage objects. The
Comparison View on the Charting tab is used to display and compare IO usage data from multiple storage objects.
Using the Charting Tab
Use the Charting tab to view current IO usage data for a Storage Center or associated storage object and compare IO usage data for
multiple storage objects.
NOTE: For user interface reference information, click Help.
View Current IO Usage Data for a Storage Center
Select a Storage Center on the Charting tab to view current IO usage data.
Steps
1. If the Storage Manager Client is connected to a Data Collector, select a Storage Center from the Storage view.
2. Click the Charting tab.
3. Select the Storage Center from the Charting navigation pane.
The IO Charts tab displays a chart that shows the IO usage data for the Storage Center.
4.
To refresh the IO usage data, click Refresh on the Charting navigation pane.
5. To stop collecting IO usage data from the Storage Center, click the Stop button. To resume collecting IO usage data, click the Start
button.
View Current IO Usage Data for a Storage Object
Select a specific object in the Charting tab navigation pane to view current IO usage data for the object.
Steps
1. If the Storage Manager Client is connected to a Data Collector, select a Storage Center from the Storage view.
2. Click the Charting tab.
3. Select a storage object from the from the Charting navigation pane.
4. Depending on the type of storage objects selected in the previous step, one or both of the following tabs appear:
• IO Charts: Displays charts that shows IO usage data.
• If a Storage Center is selected, the IO Charts tab displays IO usage data for the front end and back end connections of the
Storage Center.
• If a storage object is selected that has other storage objects assigned to it, the IO Charts tab displays calculated averages of
the IO usage data for all of the objects assigned to the selected storage object.
• If a storage object is selected that does not have storage objects assigned to it, the IO Charts tab displays the IO usage data
of the selected storage object.
IO Chart During Replications
During replications (either for a one-time replication or for a Live Volume) the IO graph shows usage data related to the replication.
For remote Storage Centers, the chart shows usage activity of the current Storage Center receiving data from the remote
Storage Center. For example, when replicating from Storage Center A to Storage Center B:
• Selecting Storage Center A in the left navigation pane, and viewing remote Storage Center B usage data will show little
activity.
• Selecting Storage Center B in the left navigation pane, and viewing Storage Center A usage data will show the IO activity
related to Storage Center A writing data to Storage Center B.
For volumes, the graph shows the IO received by the volume from the server or Storage Center:
• During a one-time replication, the graph shows IO written from the primary Storage Center to the destination volume.
• During a Live Volume replication, the graph shows IO written from the mapped server.
• Most Active Report: Displays a table that shows the minimum, maximum, average, and standard deviation values of the IO usage
data, which the Storage Manager collects every 5 minutes by default.
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Viewing Storage Center Information