Unity alerts notify a DBA of an event that requires attention. A summary of currently open alerts appears on the Alerts card of the Unity UI Overview screen. From this view you can easily and quickly sort for alert types and severity, and for the different types of alerts that are open. Select the alert name to see the details for each alert type.
You can also view alerts using the ALERT LIST command on the unityadmin command line. The following is an example of open alerts summary from the unityadmin command line.
unityadmin> alert list;
Count Type Severity Description
---------------------------------------------
1 1 Normal Start - Unity sequencer has started.
2 20 Critical Mgmt Login Failed - The Unity Management User was unable to log in to a Teradata System
1 175 Warning Mismatched Acc. Strings - Mismatched account strings have been detected.
3 225 Warning Server Space - A process has passed a warning threshold for available disk space.
6 226 Critical Server Space - A process has passed a critical threshold for available disk space.
The following is an example list of all occurrences of a particular type of alert.
unityadmin> alert list 225; Alert Type : 225 Description :A process has passed a warning threshold for available disk space. Severity : Warning Recommended Action: Recover any tables or systems that are out of service or interrupted. Then check the /data directory and remove any old files. Consider adding disk space or expansion servers to accommodate higher load volumes. This alert will be automatically cleared when the disk space has reached a safe threshold. ID Initial Raised Time Rep. Details ---------------------------------------------------------- 9 2019-10-23, 11:33:33 340 The process identified as 'region2_dsp_db1', on Unity server 'unity2', has 4.2 GB of available disk space remaining, below the warning threshold of 10.0 GB (34%). 11 2019-10-23, 11:33:33 340 The process identified as 'region2_dsp_db2', on Unity server 'unity2', has 4.2 GB of available disk space remaining, below the warning threshold of 10.0 GB (34%). 13 2019-10-23, 11:33:33 340 The process identified as 'region2_ept', on Unity server 'unity2', has 4.2 GB of available disk space remaining, below the warning threshold of 10.0 GB (34%).