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Monitored Server Setup
The EMC monitors an InterServe system’s temperatures and voltages. The internal PC Card
modem (which is delivered to you, and which you install) on the EMC provides remote
access to the server while the network of the server is down. The modem is also used to dial
specified telephone numbers (such as a paging service, or a monitoring console) when
critical events occur.
InterServe systems (InterServe 635 and newer, InterServe 80, InterServe 800, InterServe
8000, and InterServe 8400) can be delivered with an installed EMC. To use the EMC to
monitor the server, you must install a PC Card modem on the EMC, and install and
configure the ISM software.
To install and configure the ISM software, see Chapter 3, “Installing, Configuring, and
Removing InterSite Server Monitor (ISM)” in this document.
Communications
Communication between a monitoring console and an InterServe system with an installed
EMC is classified as in-band communication or out-of-band communication. The server and
monitoring console have in-band communication when they make connections through the
network. The server and monitoring console have out-of-band communication when they
make connections by modem and telephone lines. If the Windows NT operating system is
operational on the InterServe system, the server and the monitoring console can have
in-band or out-of-band communication; in-band communication is most often used and
preferred. If the InterServe system or the network is not functional, only out-of-band
communication is possible.
If the ISM software and the EMC detect hardware events (such as a temperature exceeding
tolerance) or software events (such as a session login access violation), you may configure an
alert (also known as a trap) to be sent to the monitoring console or the system administrator
as follows:
1. If the EMC can communicate with its Windows NT driver, it sends an in-band alert to
the monitoring console.
2. If the EMC cannot communicate with its Windows NT driver, it attempts to send the
alert out-of-band (by its modem) to the monitoring console.