NVBU defines two alert thresholds for disk space usage levels – Warning and Critical. These thresholds are defined as <x> Percent Full of Total Disk Space, and defaults to 85 and 95 percent, respectively.
When space usage reaches the warning threshold, the following events occur:
- The logging daemon logs an error. For example:
Warning 2011/11/11 11:11:11 N/A System NETVAULT_SERVER Warning, drive 'C:\' is '87%' full
- The Auditor logs a sysop operator message which is displayed under Operator Messages on the NVBU Status window.
- NVBU raises the Home Drive Becoming Full event under the Logging Daemon event class. You can configure one or more global notification methods to generate and receive notification when this event is raised. For details, refer to the Quest NetVault Backup Administrator’s Guide.
When space usage reaches the critical threshold, the following events occur:
- NVBU sends an error message to Event Viewer on Windows and syslog utility on Linux/UNIX.
- The Logging Daemon logs an error. For example:
SevereError 2011/11/11 11:11:11 N/A System NETVAULT_SERVER Severe error, drive 'C:\' is 96 percent full so shutdown
- NVBU shuts down automatically and sets the status on the Configurator Service tab to Stopped Disk Full.
If disk space is critically low at the startup of NVBU Service, the errors will only be logged via Event Viewer or syslog. You must take necessary steps to ensure availability of adequate disk space before restarting the NVBU Service.
The threshold vaues for disk space can be configured in the "Logging Daemon" tab of nvconfigurator. The defaults are 85% for warning, 95% for Critical.