Administrator Guide
• Read Latency: Displays read latencies, in ms, for the selected storage objects in a single chart.
• Write Latency: Displays write latencies, in ms, for the selected storage objects in a single chart.
• Xfer Latency: Display data transfer latencies, in ms, for the selected servers or remote Storage Centers in a single chart.
• Avg IO Size: Displays average IO sizes for the selected storage objects in a single chart.
• IO Pending: Displays pending IOs for the selected storage objects in a single chart.
9. Click Update.
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.
1. Select a Storage Center from the Storage view. (Data Collector connected Storage Manager Client only)
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 specic object in the Charting tab navigation pane to view current IO usage data for the object.
1. Select a Storage Center from the Storage view. (Data Collector connected Storage Manager Client only)
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.
• 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.
The Most Active Report tab is displayed only if the selected storage object is one of the following container objects:
– Volumes or a volume folder
– Servers or a server folder
– Remote Storage Centers
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Viewing Storage Center Information