Administrator Guide

2. Click the Alerts and Logs tab.
3. Select Send Logs to Syslog Server.
4. In the Host or IP Address field, type the host name or IP address of the syslog server.
5. Click OK.
Stop Sending Logs To a Syslog Server
Modify Storage Center settings to stop sending logs to a Syslog server.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of Unisphere
Central.
2. Click
Storage Center Settings.
3. Select Alerts and Logs from the Storage Center Settings menu.
4. Click the Do Not Send Logs checkbox.
5. Click OK.
Thresholds
Threshold alerts are automatically generated when user-defined threshold definitions for storage object usage are crossed. Threshold
queries allow you to query historical data based on threshold criteria.
Configuring Threshold Definitions
Threshold definitions monitor the usage metrics of storage objects and generate alerts if the user-defined thresholds are crossed.
The types of usage metrics that can be monitored are I/O usage, storage, and replication. Unisphere Central collects the usage metric
data from managed Storage Centers. By default, Unisphere Central collects I/O usage and replication metric data every 15 minutes and
storage usage metric data daily at 12 AM. Storage objects on the Storage Centers are assigned to threshold definitions and each threshold
definition contains one or more threshold values. When the value of a monitored metric reaches a threshold value, an alert occurs. If an
SMTP server is configured on the Data Collector, Unisphere Central sends an email with the threshold alert. It sends only one email alert
every 24 hours.
NOTE:
Unisphere Central sends only one email per alert occurrence. If after 24 hours the metric is still at or above the
threshold alert value, an alert email is not sent. The metric must fall below the threshold value and then exceed the
threshold again to generate an alert email.
Perform the tasks in the following sections to set up and view threshold definitions:
• Setting Up Threshold Definitions
• Assigning Storage Objects to Threshold Definitions
• Assigning Threshold Definitions to Storage Objects
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
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Storage Center Monitoring