ManageEngine® SQLDBManager Plus


Glossary

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Glossary

 

Terms

Definition

Action

These are tasks to be performed to notify the user, when alarms are generated by SQLDBManager Plus.

 

For example, while monitoring WebLogic server, if the user wants to be intimated when the server response time is greater than 1000ms, then an alarm is generated when the condition is met. The users are notified of the alarms through Actions such as sending e-mail, SMS, trap, and executing a command.

Admin Activities

Activities allowing IT administrators to configure any operation in SQLDBManager Plus with ease. Only the 'Admin' user can perform these activities. For more information on user access, refer to the User Administration section.

Alarms

Alarms are notifications generated based on Threshold / Health values .

 

They are generated when the value of a numerical attribute exceeds the pre-defined threshold limit. Additionally, the status of health and availability of an application can also be determined through Alarms.

Alarm Configuration

This activity enables the user to associate a threshold profile with an attribute so that alarms are generated. It includes associating the action to be executed when an alarm is generated.

 

Additionally, the dependencies for the Health attribute of a Monitor can also be configured.

Attribute

Attributes are parameters/objects of a Monitor and they provide information about them. These are parameters whose values are set to threshold to generate alarms.

Availability

An attribute that determines whether a system or application is available for use (Up or Down).

 

For example, If a Web server is running, then the availability is up.

 

Consider a situation where the Web server may be running fine but its response time is high. This is indicated by Availability as Up and Health as critical if the response time is a dependent parameter for health.

Dependencies

Dependencies determine

  • Health of Monitor

  • Health or Availability of Monitor

They consist of the dependent parameters of the Monitor based on which the severity of the health and availability is determined.

Enterprise OID in SNMP Trap

OID that uniquely distinguishes traps of different organizations, i.e. they vary for different vendors. This field applies only to SNMPv1 traps.

Generic Type in SNMP Trap

These are types that are mapped to specific OID to generate SNMP traps and provide additional information about the functioning of the Monitor . They are applicable only to SNMPv1 traps. The different types of Generic traps are coldStart, warmStart, linkDown, linkUp, authenticationFailure, and egpNeighborLoss.

Health

An attribute that indicates the quality of Monitors, based on their dependencies.

 

For example, If a Web server takes 10 mins to respond, its response time is high but the server is still available. Hence it is indicated by Health as critical (If response time is a dependent parameter of health) and Availability as up .

Monitoring

It is a continuous process that uses methodical collection and analysis of data to provide business management.

Monitor

Monitor is an instance of a DB server that is running in a port of a host.

Mean Time To Repair (MTTR)

The average time to repair a device or a system back to acceptable operating conditions. The term can also means, the time spent to restore a machine to operating condition after failure.

 

This must be as low as possible. MTTR thresholds can be set to trigger root cause.

Mean Time Between Failures (MTBF)

The average time that a device or a system worked without failure. The term also stands for the length of time a user may reasonably expect a device or system to work before an incapacitating fault occurs.

 

This must be as high as possible. MTBF thresholds can be set to trigger root cause.

Polling Interval

The time interval to monitor the different parameters configured for a Monitor.

RCA

Root Cause Analysis helps to point the actual cause of a problem. You can view the 'Root Cause Analysis' by clicking on the status icon of the attributes.

 

For example,

 

Expand the nodes to view the actual cause of the problem. Here, Health is critical as Availability and Response Time (dependencies of Health) are also critical.

Reports

They provide organized presentation of data that depicts the behavior of Monitor over a specified period of time.

Response Time

The time taken by a Monitor to react to a given input.

Severity

Indicates how serious the problems are. There are three levels of severities: Critical, Warning, and Clear. These are controlled by the threshold set by the user or administrator.

SMTP Server

An outgoing e-mail server using Simple Mail Transfer Protocol (SMTP) that sends your outgoing messages to the appropriate recipients. Most e-mail systems that send mail over the Internet use SMTP to send messages. The messages can be retrieved using POP server.

SNMP OID

Object identifier (OID) that is used to uniquely identify each object variable of a MIB (Management Information Base).

Specific Type in SNMP Trap

When generic is set to Enterprise, a specific trap ID is identified.

Threshold

Threshold is the value that determines the severity of the alarm based on the pre-defined conditions.

 

For example, if the user wants to be intimated when the server response time is greater than 1000ms, then a threshold can be created based on this condition and assigned to the attribute.



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