Chapter 6. Managing DB2 Databases with SMS

This chapter describes DB2 databases from the point of view of their attributes for SMS management, and provides examples for these databases. Due to their stricter availability requirements, the DB2 system databases are analyzed separately.

This chapter includes examples of SMS Data, Storage, and Management Classes for DB2 table spaces. These examples are applied to DB2 system tablespaces and to DB2 application table spaces grouping them in four different user environments.

6.1 SMS Examples for DB2 Databases

The following examples are provided to show how SMS can be used to manage DB2 table spaces. These examples do not show all possibilities SMS offers to an installation. Each installation can review these examples and create those classes that best suit its environment. The examples shown here are extracted and adapted from DFSMS/MVS Implementing System-Managed Storage, SC26-3123.

Naming Convention:

The following naming structure is used for the example SMS constructs. Each name has a two-character SMS construct identifier, two characters ’DB’ to identify them as SMS constructs used for DB2, followed by a variable length (aaaa) text. This naming convention is:

DCDBaaaa

SMS Data Classes for DB2

SCDBaaaa

SMS Storage Classes for DB2

MCDBaaaa

SMS Management Classes for DB2

SGDBaaaa

SMS Storage Groups for DB2

6.1.1 Using ISMF to Display SMS Constructs

A DB2 administrator can use ISMF to access and examine the different SMS constructs in the installation. A storage administrator uses ISMF to create and to manage the SMS constructs. Figure 14 on page 48 shows how to display the active Data Class DCDB2.

The options available on the DATA CLASS APPLICATION SELECTION panel are dependent on the authorization of the user. Only a user authorized to manage SMS constructs is allowed to define or alter them. Other users may only have options 1 (List) and 2 (Display) available.

6.1.2 SMS Data Class

All DB2 table spaces, either for system or for user data, have exactly the same attributes. One Data Class can be defined for all these data sets. The Data Class allows an override of space parameters (primary and secondary allocation quantity) because those will be different for each table space. Figure 15 on page 48 shows some information from the Data Class DCDB2, a Data Class example for DB2 table spaces and index spaces.

© Copyright IBM Corp. 1999

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IBM 5695-DF1 manual Managing DB2 Databases with SMS, SMS Examples for DB2 Databases, Using Ismf to Display SMS Constructs

5695-DF1, 5655-DB2 specifications

IBM 5655-DB2 and 5695-DF1 are significant components within the IBM software ecosystem, predominantly focusing on data management and integration solutions. These offerings cater primarily to enterprise environments that require robust database management systems and associated frameworks to maintain and manipulate data efficiently.

IBM 5655-DB2 is a well-known relational database management system (RDBMS) that excels in managing large volumes of structured data. Its architecture is designed to support high availability, scalability, and performance, crucial for businesses operating in today’s data-driven world. Some of its main features include advanced indexing capabilities, support for complex queries, and dynamic workload management. Additionally, it provides strong concurrency controls, which enable multiple users to access and manipulate data simultaneously without compromising data integrity.

One of the key characteristics of DB2 is its support for various data types, including JSON and XML, making it versatile for modern applications that generate data in diverse formats. It also features robust security mechanisms to protect sensitive data, aligning with compliance standards across industries. Integration with analytics tools further allows businesses to derive insights from their data, enhancing decision-making processes.

On the other hand, IBM 5695-DF1, also known as the InfoSphere DataStage, is a powerful data integration tool that facilitates the extraction, transformation, and loading (ETL) of data from various sources to target systems. It empowers organizations to streamline their data flows, ensuring that clean, consistent information is available for analysis and operational use. Key features of 5695-DF1 include a user-friendly graphical interface that enhances developer productivity and a rich set of connectors for numerous data sources, enabling seamless data integration.

DataStage also supports real-time data integration, allowing businesses to keep their data synchronized across multiple platforms. Its parallel processing capabilities dedicatedly optimize performance, enabling organizations to handle vast datasets efficiently. It incorporates data quality tools that help in validating and cleansing data before it is used for decision-making processes.

Both IBM 5655-DB2 and 5695-DF1 are part of a broader strategy to accommodate the evolving landscape of data management. Businesses leverage these technologies to enhance their data architectures, fostering agility and competitive advantage in their respective markets. Their integration capabilities, along with a focus on security and scalability, position them as vital assets in modern enterprise environments. Whether managing critical data within a database or ensuring seamless data flow across systems, these IBM offerings provide a comprehensive approach to handling complex data challenges.