Administrator Guide

About this task
Storage Manager generates threshold alerts after Storage Usage checks usage metrics and notices a threshold definition has
been exceeded. Storage Usage runs daily at 12 AM by default.
Steps
1. Click the Threshold Alerts view.
2. Click the Definitions tab.
3. Click Create Threshold Definition. The Create Threshold Definition dialog box opens.
4. Enter a name for the threshold definition in the Name field.
5. Select the type of threshold definition to create from the Type drop-down menu.
● IO Usage: Read and write IO performance.
● Storage: Use and growth of storage.
● Replication: Status of replications.
6. Select the type of storage object to assign to the threshold definition from the Alert Object Type drop-down menu.
7. Select the type of usage metric to monitor from the Alert Definition drop-down menu.
8. (Optional) To assign the threshold definition to all of the storage objects that are of the type specified in the Alert Object
Type, select the All Objects check box.
The All Objects setting cannot be modified after the threshold definition is created.
9. Specify the alert notification settings for the Error, Warning, and Inform thresholds:
●
Error Settings: Enter the threshold value that the usage metric must exceed to trigger an Error threshold alert. To email
Error threshold alerts to the Storage Manager administrators, select the Email check box. Then enter the number of
concurrent events that must occur to trigger an alert email.
● Warning Setting: Enter the threshold value that the usage metric must exceed to trigger a Warning threshold alert.
To email Warning threshold alerts to the Storage Manager administrators, select the Email check box. Then enter the
number of concurrent events that must occur to trigger an alert email.
● Inform Settings: Enter the threshold value that the usage metric must exceed to trigger an Inform threshold alert. To
email Inform threshold alerts to the Storage Manager administrators, select the Email check box. Then enter the number
of concurrent events that must occur to trigger an alert email.
NOTE:
Storage Manager sends only one threshold alert email for every 24-hour period. The number of threshold
alert emails per 24-hour period cannot be configured. In addition, if the metric remains at or above the threshold alert
value, a second alert email is not sent. The metric must fall below the threshold value and then exceed the threshold
again to generate an alert email.
10. (Optional) To configure the threshold definition to generate Volume Advisor recommendations to move one or more volumes
to a different Storage Center, select the Recommend Storage Center check box.
● Recommendations are generated when the error threshold is exceeded.
● The Recommend Storage Center checkbox is available only for threshold definitions that support Volume Advisor.
11. To specify the time that Storage Manager monitors the threshold definition:
a. Select the Time Constraint check box.
b. Specify the start of the time period in the Start Time field.
c. Specify the end of the time period in the End Time field.
12. To specify which days of the week that Storage Manager monitors the threshold definition:
a. Select the Day Constraint check box.
b. Select the check boxes of the days of the week to monitor the threshold definition.
c. Clear the check boxes of the days of the week to not monitor the threshold definition.
13. Select the storage objects to assign to the threshold definition in the Add Objects dialog box. Additional objects can be
added to a threshold definition after it is created.
14. Click Finish.
Related concepts
Assigning Storage Objects to Threshold Definitions on page 572
Configuring Email Notifications for Threshold Alerts on page 583
Configuring Volume Advisor Movement Recommendations on page 576
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Threshold Alerts