A cluster is a group of independent AlarmTraq servers working together as a single
system to ensure that mission-critical resources such as modems and IP ports are as
highly-available as possible. The group is managed as a single system, and is specifically designed to tolerate component failures,
and to support the addition or removal of components in a way that's transparent
to your organization.
To increase the scalability and to maintain performance, your organization might
use a cluster to increase the number of ports in your AlarmTraq cluster to up to
24 modems. The following example adds three servers to the AlarmTraq cluster to
create a 24 port load-balanced cluster, which spreads
server tasks across three
servers.
3-Node Server Cluster
As you may already be aware, there is one way to help boost your
AlarmTraq Server’s uptime, and that is by clustering AlarmTraq Servers. This
way, should one AlarmTraq Server fail in the cluster, another clustered server
will automatically take over, keeping downtime to minutes, instead of hours or
more.
Clustered systems have several advantages: fault-tolerance,
high-availability, scalability, simplified management and support for rolling
upgrades, to name a few.
View Cluster Diagram
Management
You can assign each server any or all roles to be performed. Click on Edit >
Server Roles
Primary Server Only one server should be assigned as the Primary
Controller. The Primary controller houses the web server, SNMP manager and
dispatcher module. The Primary controller is also responable for running the
maintenance routines.
Enabled Maintenance Routines
Auto Alarm Reporting This server will run all auto alarm reports to be
sent via email during the maintenance routine.
Auto Archiving This server will archive alarms according to their auto
archive settings during the maintenance routine.
Auto Backups This server will backup the SQL database during the
maintenance routine.
Allowed Server Tasks (see server
tasks)
INADS Link Tests This server is enabled to connect to systems and run the
testinads commands.
Run Commands after alarms This server is enable to connect to systems to
run specified tests to try to resolve the alarm.
Configuration Reports This server is enabled to connect to systems to run
nightly, weekly or monthly configuration reports during the maintenance routine.
Pager Outdialing This server is enabled to dial pager number over the
modems.
Allowed Connection Types
Standard Modem Connections This server is enabled to connect using a
standard modem connection to legacy G3 systems using dial-up modems.
RAS/PPP Connections This server is enabled to connect using a RAS/PPP
connection to S8XXX Media Servers and gateways.
Direct IP Connections This server is enabled to connect using direct IP
connections.