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Enabling snapshots for a volume can sometimes lead to data loss or corruption if the additional space required to store the previous version(s) of the modified or deleted blocks is running out. To avoid this problem, NetApp allows administrators to reserve space in advance in the volume. As an administrator, you may need to know whether your aggregates or LUNs have this option enabled. This information is provided by the Space Reservation Status attribute of the NetApp Aggregate or NetApp LUN Monitor Types.
To view the space reservation status for one or several aggregates (or LUNs), you will need to create a simple one-row dashboard. Dashboards allow you to gather specific types of data and display them in a consolidated graphical format. For detailed information about dashboards options and features, refer to the BMC documentation.
To identify Aggregates with Space Reservation Enabled
| 1. | Login to your BMC TrueSight Operations Management console. |
| 2. | Select Dashboards from the navigation pane. |
| 3. | In the Dashboards page, click Add Dashboard or select Add Dashboard from the dashboard action menu  . |
| 4. | Enter a Title for your dashboard and configure a Global Filter, if needed. |
| 5. | Click Add Dashlet to open the dashlet library for the first column of the row. |
| 6. | From the dashlet library, select the Device Performance template, and then click Close. |
Tip
To quickly retrieve a component or a parameter, enter its name in the Search Parameters field and click Search.
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| 7. | Select Configure Dashlet by clicking the  button. |
| 8. | In the panel of input fields and options that opens below the dashboard, enter a Title for the dashlet and specify a Refresh Rate (default is 5 minutes). |
| 9. | Select the NetApp storage device for which you wish to know the space reservation status. |
| 10. | Select the Space Reservation Status parameter for the first aggregate , and click Apply. |
| 11. | Repeat this operation in the next column of the dashboard for another aggregate and click Save. |
| 12. | The dashboard is completed and shows the space reservation status for both selected aggregates. |
Related Topics
Monitoring your Storage Environment
Creating Consolidated Data Views with Dashboards
NetApp Aggregate
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