Administrator Guide

Table Of Contents
Pressure
Report Column
Description
Pressure Down Amount of data scheduled to move to a slower storage tier during the next Data Progression cycle.
Indicated by an orange bar and a down arrow in the bar chart.
Volume Allocated Amount of usable space for volumes after RAID is applied.
Volume Used Amount of volume allocated space that is consumed.
Saved vs RAID 10 Amount of space saved by moving less-accessed data to RAID 5 or RAID 6 instead of using RAID 10 for
all data.
Viewing Historical IO Performance
The IO Usage tab is used to view and monitor historical IO performance statistics for a Storage Center and associated storage
objects. The Comparison View on the IO Usage tab is used to display and compare historical IO usage data from multiple
storage objects.
Using the IO Usage Tab
Use the IO Usage tab to view historical IO usage data for a Storage Center or associated storage object, and to compare IO
usage data from multiple storage objects.
NOTE: For user interface reference information, click Help.
View Historical IO Usage Data for a Storage Center
Select a Storage Center on the IO Usage tab to view historical 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 IO Usage tab.
3. Select a Storage Center object from the IO Usage navigation pane.
The IO Charts tab displays a chart that shows the historical IO usage data of the Storage Center.
4.
To refresh the displayed IO usage data, click Refresh
on the IO Usage navigation pane.
View Historical IO Usage Data for a Storage Object
Select a specific object in the IO Usage tab navigation pane to view historical 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 IO Usage tab.
3. Select a storage object from the IO Usage navigation pane.
4. Depending on the type of storage objects selected in Step 4 one or both of the following tabs appear:
IO Charts: Displays charts that shows historical 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.
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Viewing Storage Center Information