Help for E-mail alert event list


Description of the information displayed

The E-mail alert Event List page displays the list of conditions that the appliance will monitor.

There are a number of conditions which the appliance can check for. See the help for E-mail alerts for a general description of how E-mail alerts work, and when a condition can trigger sending an e-mail alert message.

File system over XX% full
If enabled, the appliance will look at the size of each local file system. The condition is true if any file system is greater than XX% full. For example, if XX is set to 90, and 90% or more of the capacity of the /home file system is in use, the condition is true for the /home file system.

Each file system is considered independently to determine if a new e-mail alert message should be sent. For example, if the / file system has triggered an e-mail alert within the last 24 hours, and then the /home file system exceeds the threshold, a new e-mail alert will be sent.

Only local file systems are checked. Local file systems reside on hard drives physically in the appliance.

XX should be a number between 0 and 100. Example: 50 is acceptable, 120 or -1 are not.

Processor load over XX
If enabled, the appliance will look at the average processor load over the last five minutes. The condition is true if the load is at least XX.

The processor load is a measure of how busy the CPU is. A typical load for a mostly idle computer is 0.15. A very busy computer might have a load of 10 or more.

XX should be 0 or a positive number. Example: 0, 0.5, and 5 are acceptable, -3 is not.

Web server not responding
If enabled, the appliance will try to retrieve the home Web page from each of its Web servers. If it is unable to retrieve any of them, the condition is true.

The appliance has three Web servers: The production Web server, on port 80; the IBM HTTP Server Administration Web server, on port 8008 and 8009; and the Appliance System Manager Web server, on ports 1959 and 1999.

Each Web server is an independent condition. After one has failed, the failure of another will trigger a new e-mail alert message.

Host xxxx not responding to PING
The appliance will send a PING message to the host xxxx. If no response is received, the condition is true.

A PING is a TCP/IP request for a quick response message. It is used to determine if the destination machine is running, and there is a network path to the destination.

Note that a machine can respond to a PING even if most of its services are not working. This condition tests your network, and that the destination machine is not completely down, but not that the destination machine is providing any useful services.

xxxx should be a hostname or IP address. Example: hosta.example.com and 10.1.3.2 are acceptable.

Memory usage over XX%
This condition is true if XX% or more of the appliance's virtual memory is in use.

The total virtual memory of the appliance consists of the physical memory size, plus the size of swap space.

XX should be a number between 0 and 100.

Unexpected reboot
This condition is checked only during appliance start. An e-mail alert will be sent if the appliance does not appear to have been shut down normally; e.g. the appliance might have suffered a power failure or an operating system crash.

This condition will generate an e-mail alert each time the machine is restarted after an abnormal shutdown, even if it occurs less than 24 hours after the last alert for this condition.


Description of the buttons and actions available

submit Click this button to update the e-mail alert configuration.