Appendixes

Glossary

A

activity
One phase within a sequence of predefined steps called a policy that automate system responses to a situation that has fired (that is, become true).
alert
An alert can be a system sound, a pop-up window, or a message sent to an external device that is triggered when an event is trapped by an OMEGAMON agent.
attribute
A system or application element being monitored by the OMEGAMON agent, such as Disk Name and Disk Read/Writes Per Second. An attribute can also be a field in an ODBC-compliant database.
attribute group
A set of related attributes that can be combined in a data view or a situation. When you open the view or start the situation, Tivoli Enterprise Portal retrieves data via its constituent attributes. Each type of agent has a set of one or more attribute groups associated with it.

C

Candle Management Workstation (CMW)
The client partner of a Tivoli Enterprise Monitoring Server. It has been mostly replaced by the Tivoli Enterprise Portal user interface but is required for selected advanced functions. Note that the CMW's Workload Definitions icon is no longer required to support the OMEGAMON XE for CICS on z/OS service-level analysis (SLA) feature; this feature has been ported to Tivoli Enterprise Portal via alternative view CICS SLA.
CCSID
The Coded Character Set Identifier is a 16-bit number that represents a specific encoding of a specific code page. A code page represents a particular mapping or ordering of a character set. Each character is assigned a code point, the computer's internal representation of that character, and all code points in a code page contain the same number of bytes. Certain character sets can be adequately represented with single-byte code pages (256 characters), but many require two bytes or even more. Each CCSID contains all of the information necessary to assign and preserve the meaning and rendering of characters through various stages of processing and data interchange. This information always includes at least one code page but may include multiple code pages of differing byte lengths. The CCSID also has an associated encoding scheme that governs how various code points are to be handled. This is the mechanism that applications use to implement mixed, bidirectional, and other complex string representations.
Configuration Tool (ICAT)
A user interface tool that is used to configure OMEGAMON XE monitoring products running on z/OS.
Common Object Request Broker Architecture (CORBA)
An industry specification for the design of object request brokers (ORBs). ORBs allow different computer systems to exchange data with each other as objects.

E

event
An action or some occurrence, such as running out of memory or completing a transaction, that can be detected by a Tivoli Enterprise Portal situation. The event causes the situation to become true and an alert to be issued.

H

historical data management
The procedures applied to short-term binary history files that roll off historical monitoring data to either a data warehouse or to delimited text files (using the krarloff utility on UNIX or Windows; KBDXTRA on z/OS Persistent Data Store). They then delete entries in the short-term history files over 24 hours old to make room for new entries.
hub Tivoli Enterprise Monitoring Server
The Tivoli Enterprise Monitoring Server that has been selected to act as the focal point to which all Tivoli Enterprise Portal Servers, monitoring agents, and managed systems connect. A remote Tivoli Enterprise Monitoring Server passes its collected data to the hub to be made available to the Tivoli Enterprise Portal server and clients, thereby creating an enterprise-wide view.

M

MIME
The Multipurpose Internet Mail Extensions are an extension of the original Internet e-mail protocol, the Simple Mail Transport Protocol (SMTP), that lets people use SMTP to exchange different kinds of data files on the Internet, such as audio and video files, images, and application-program binaries, as well as the ASCII text mandated by the original protocol.
monitor interval
A specified time, scalable to seconds, minutes, hours, or days, for how often the Tivoli Enterprise Monitoring Server checks to see if a situation has become true. The minimum monitor interval is 30 seconds; the default is 15 minutes.
MTOM
The Message Transmission Optimization Mechanism (MTOM), a SOAP feature, is a method of efficiently sending binary data to and from Web services. It uses XOP (XMP-binary Optimized Packaging) to transmit binary data. Binary data is sent as an attachment with MTOM, which saves processing time.

N

Navigator
The left pane of the Tivoli Enterprise Portal window. The Navigator Physical view shows your network enterprise as a physical hierarchy of systems grouped by platform. Within OMEGAMON XE for CICS on z/OS, the Navigator also gives you access to the CICS SLA view, which you can use to set up and enable monitoring of your site's service-level agreements.

OMEGAMON DE users can also create other views that form logical hierarchies grouped as you specify, such as by department or function.

O

OMEGAMON Dashboard Edition (OMEGAMON DE)
The OMEGAMON which includes all the features of Tivoli Enterprise Portal included with OMEGAMON XE, plus application integration components.
OMEGAMON Extended Edition (OMEGAMON XE)
OMEGAMON XE is a suite of products that monitor and manage system and network applications on a variety of platforms. These products keep track of the availability and performance of all parts of your enterprise from one or more designated workstations, and provide reports you can use to track trends and troubleshoot problems.
OMEGAMON monitoring agent
The agent scans a managed system for data and sends information back to the Tivoli Enterprise Portal formatted into table views.
OMEGAMON Platform
A client-server implementation comprising a Tivoli Enterprise Monitoring Server, an application server known as the Tivoli Enterprise Portal Server, at least one Tivoli Enterprise Portal client, and monitoring agents that collect and distribute data to a Tivoli Enterprise Monitoring Server.
OMEGAMON Web Services
An interface to the OMEGAMON platform based on open-standards SOAP requests. Using Web Services, any OMEGAMON XE monitor can be dynamically queried, so that its performance and availability data can be processed by other, external applications.

P

pipeline
A resource definition for a Web service. The pipeline resource definition provides information about the message handlers, which act on the client's service request.
policy
The Tivoli Enterprise Portal automation tool, with which you can define responses to critical events (that is, alerts) by automatically executing system commands or invoking external programs. A policy is a logical expression that describes one or more automated steps, called activities, whose order of execution you control and that can perform predefined actions, schedule work for users, or automate manual tasks. For example, policies can monitor for excessive page-ins and page faults and then write the process name and ID to a log for later analysis, or monitor for average system CPU usage of 95% and then reduce the priority of each job found using more than 20% of the CPU.

In most cases, a policy links a Take Action command to a situation that has turned true. Once begun, the policy's workflow progresses until all activities have been completed or until the Tivoli Enterprise Portal user manually stops the policy. You can create both policies that fully automate workflow strategies and those that require user intervention. As with situations, policies are distributed to the managed systems you want to monitor and to which you are sending commands.

R

runtime environments (RTEs)
A group of runtime libraries that provide an operational environment on a z/OS system.

S

seeding the Tivoli Enterprise Monitoring Server
Before you can use a monitoring agent, the Tivoli Enterprise Monitoring Server to which it reports must be seeded, that is, initialized with application data. Seeding adds product-provided situations, templates, and other sample data to the Tivoli Enterprise Monitoring Server's Enterprise Information Base (EIB) tables.
situation
A set of conditions that, when met, creates an event. A condition consists of an attribute, an operator such as greater than or equal to, and a value. It can be read as “If - system condition - compared to - value - is true”. An example of a situation is: IF - CPU usage - GT - 90% - TRUE. The expression CPU usage > 90% is the situation condition.
SOAP
The Simple Object Access Protocol supports message transport using the Internet-standard Simple Mail Transport Protocol and standard message-oriented middleware such as IBM's WebSphere® MQ, as well as File Transfer Protocol and TCP/IP. SOAP supports asynchronous message transfer.

T

target libraries
SMP/E-controlled libraries that contain the data from the distribution media.
Tivoli Enterprise Monitoring Server
The central data management component for the OMEGAMON Platform.
Tivoli Enterprise Portal Server
The OMEGAMON Platform server you log on to. The Tivoli Enterprise Portal Server connects to the hub Tivoli Enterprise Monitoring Server. It enables retrieval, manipulation and analysis of data from IBM Tivoli Enterprise Monitoring Agents.

U

UDDI
The Universal Description, Discovery, and Integration initiative is an XML-based registry for businesses worldwide; it enables them to list themselves and the services they offer on the Internet.

V

view
A window pane, or frame, in a workspace. It might contain data from an agent in a chart or table, or it might contain a terminal session or browser, for example. A view can be split into two separate, autonomous views.

W

workspace
The viewing area of the Tivoli Enterprise Portal window, excluding the Navigator. Each workspace comprises one or more views. Every Navigator item has its own set of default primary workspaces; each might have multiple subsidiary (also called secondary) workspaces that are accessible only via links from views within the primary workspace.
WSDL
The Web Services Description Language is an XML-based language that describes the services a business offers in such a way that individuals and other businesses can access those services over the Worldwide Web. WSDL is the language used to do implement UDDI; it is derived from Microsoft's Simple Object Access Protocol (SOAP) and IBM's Network Accessible Service Specification Language (NASSL). WSDL replaces both NASSL and SOAP as the tool for describing business services in the UDDI registry.

X

XOP
XMP-binary Optimized Packaging. A SOAP-based toolkit for sending large binary files over the Internet. XOP streamlines message processing over the Worldwide Web by including binary objects as attachments rather than embedding them in the message stream.

One problem with using SOAP to send binary data is that its building block, the Extensible Markup Language (XML), is text-based. Binary files are incompatible with text-based message data.