Before starting

Concepts

Before starting to use this tool and in order to facilitate the understanding of this User Manual, a simple explanation of some key concepts in the WOCU-Monitoring environment is included below.

Assets in WOCU

All the elements monitored in WOCU-Monitoring can be generically called Assets. This term includes all the elements without distinguishing between their different types (Hosts, Services, Contacts, Host Groups, Business Processes, etc.).

Types of Assets in WOCU-Monitoring.

Term

Description

Host

A Host is any element connected to the network (PC, server, firewall, network electronics, etc.) and which is monitored by WOCU-Monitoring to supervise its availability, calculate its status and record its events.

Host Group

A Host Group is a logical grouping of certain Hosts to make it easier to extract statistics and availability data from the group in WOCU-Monitoring.

Services

A Service is each of the checks that WOCU-Monitoring performs on a Host, to which it will associate a status after examining each of them. Thanks to these checks, a deeper analysis can be made in terms of availability.

Business Process Hosts (BP Hosts)

A Business Process Hosts is a logical definition created by the user in WOCU-Monitoring, which groups one or more logical and/or physical Hosts, i.e. other Business Process Hosts and/or physical Hosts.

Once defined, this definition will have the same entity as the rest of the Hosts monitored in WOCU-Monitoring, appearing in their Asset inventories. Likewise, the system will monitor this logical asset, to determine its status, through some rules that will be applied to it (Business rules).

These rules are logical (AND, OR, NOT, IN) and allow WOCU-Monitoring to calculate the state of the Business Process Hosts by analysing and evaluating the states of its constituent elements (physical and/or logical hosts).

Business Process Services (BP Services).

A Business Process Service is a logical definition created by the user in WOCU-Monitoring, which groups one or more Services defined in logical and/or physical Services.

Realms in WOCU

Realms are completely independent monitoring systems that can be organised and managed thanks to WOCU-Monitoring. Each realm itself will have its own monitored assets, on which the tool will maintain isolated inventories, alarms, event logs, etc.

Types of Realms in WOCU-Monitoring.

Typology

Icono

Description

Standard Realm

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These types of Realms are made up of Assets manually configured by the WOCU Administrator. The elements are manually selected and become part of one of these monitoring systems. The absence of a specific type icon informs the user that this is a standard Realm.

Hostgroups

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A quick and easy way to create a Realm and provide it with Assets is to associate it to one or more Host Groups. On this occasion, the WOCU Administrator will include in the created Realm the elements that already constitute one or more Host Groups (Hostgroups), which are logical sets of elements that group together different Assets.

Multirealm

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Realm resulting from including other existing Realms within it, i.e. an aggregation of Realms is created. In this instance, the WOCU Administrator instead of individual Assets or groups of Assets can directly include entire monitoring systems by aggregating their members to create a larger Realm.

Statements of Assets in WOCU

Each of the assets monitored in WOCU-Monitoring always has a status associated with it that defines its situation, from an availability point of view, over time. In other words, the status of an asset is dynamic. WOCU-Monitoring is responsible, through its various checks, for evaluating the present situation of each asset in order to calculate its status and update it if there is a change.

It is important to understand this concept well as statuses are recurrently present in WOCU-Monitoring listings, inventories, graphs and reports.

In WOCU-Monitoring there are four basic states:

State types in WOCU-Monitoring.

Typology

Icono

Description

Down/Critical

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The Down/Critical status is the one that indicates a total loss of availability of the asset, therefore its severity is maximal. The term Down is used to describe the status of Hosts that have completely lost availability, while Critical is the equivalent term used for Services when one of these becomes unavailable or when some parameter of the monitored Service exceeds a certain threshold (the value of this threshold is set in the configuration of the host when it is discharged).

In WOCU-Monitoring, the red colour and/or the down-pointing arrow icon are associated with the Down/Critical Status.

Warning

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Warning status applies only to Services. It indicates some kind of malfunction, although the asset is still in service, so its severity is lower than Critical status.

In WOCU-Monitoring, the yellow colour and/or the exclamation icon are associated with the Warning status.

Unreacheable/Unknown

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The status Unreacheable/Unknown reports a loss of contact with the asset. It is not known whether the asset is still in service or not, so this status indicates some uncertainty about the actual situation that deserves consideration. In that sense the severity is a priori lower than the previous ones. The term Unreacheable is used to describe the status of Hosts with which WOCU-Monitoring has completely lost connectivity, although a total loss of service by the Host has not been verified. Unknow is the equivalent term used for Services.

In WOCU-Monitoring, the blue colour and/or the question mark icon are associated with the Unreacheable/Unknown status.

Up/OK

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The Up/OK state is the normal operational state of an asset when it is in service. It is therefore the desirable state for all monitored elements and any change from this state to another is considered an anomaly that will need to be addressed. The term Up is used with Hosts to describe their normal operating state, while OK is the term used for Services to describe this normal operation.

In WOCU-Monitoring, the green colour and/or the tick icon are associated with the Up/OK status.

Alarms and Events at WOCU

Two other concepts that are closely related to the monitoring and operation of networks and systems are the concepts of alarms and events. It is important to understand their meaning and difference when using WOCU-Monitoring in your daily tasks.

Term

Description

Problems

Alarms are alert messages generated by WOCU-MOnitoring indicating an abnormal status for a Host or Service. The tool performs different monitoring tasks for each of the monitored elements in order to determine at all times the status for each of them. A change from the Up/OK state to any other state will trigger an Alarm in WOCU-Monitoring. In addition, WOCU-Monitoring will provide additional information to the Status to indicate the nature of the detected anomaly.

Events

Events are messages about the functioning and operation of the different monitored Hosts that are collected and analysed by WOCU-Monitoring. Events are used by WOCU-Monitoring as an additional element in the calculation of the status of the assets and also offer the opportunity to analyse the causes or circumstances of an incident, since a good technical analysis must always be supported by the log messages of the Hosts involved.