Administrator Guide

Setting Up Threshold Definitions
You can create, view, edit, and delete threshold definitions.
Create a Threshold Definition
Create a threshold definition to monitor IO usage, storage, or replications.
Prerequisites
To receive email notifications for threshold alerts, the following settings must be configured:
● SMTP server settings for the Data Collector
● Email address for your user account
● Notification settings for your user account
About this task
Unisphere Central 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. If a Storage Center is selected from the drop-down list in Unisphere Central, click
(Home).
The Unisphere Central Home page is displayed.
2. From the MONITORING menu, click Thresholds.
The Thresholds view is displayed.
3. Click the Definitions tab.
4. Click (New). The General page of the Create Threshold Definition wizard opens.
5. Enter a name for the threshold definition in the Name field.
6. 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.
7. Select the type of storage object to assign to the threshold definition from the Alert Object Type drop-down menu.
8. Select the type of usage metric to monitor from the Alert Definition drop-down menu.
9. (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.
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.
● The Recommend Storage Center checkbox is available only for threshold definitions that support Volume Advisor.
11. If the All Objects check box was not selected on the General tab:
a. Click Next.
The Add Storage Centers page is displayed.
b. Select the check boxes of the Storage Centers to add to the threshold definition.
12. Click Next.
The Settings page is displayed.
13. 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 Unisphere Central 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 Unisphere Central administrators, select the Email check box. Then enter the
number of concurrent events that must occur to trigger an alert email.
Storage Center Monitoring
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