Dell Storage Manager 2020 R1 Administrator's Guide

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.

1. If the Dell 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 CenterA to Storage CenterB:

     • Selecting Storage CenterA in the left navigation pane, and viewing remote Storage CenterB usage data will show little activity.
     • Selecting Storage CenterB in the left navigation pane, and viewing Storage CenterA usage data will show the IO activity related to Storage CenterA writing data to Storage CenterB.
     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 Dell 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
     • Disks or disk speed folder
5. To refresh the IO usage data, click Refresh on the Charting navigation pane.
6. To stop collecting IO usage data from the Storage Center, click the Stop button. To resume collecting IO usage data, click the Start button.