4.3 DFSMS/MVS Components

DFSMS/MVS provides and enhances functions formerly provided by MVS/DFP, Data Facility Data Set Services (DFDSS), and the Data Facility Hierarchical Storage Manager (DFHSM). The product is now easier to install and order than the combination of the earlier offerings. This chapter describes the main components of the DFSMS/MVS family:

DFSMSdfp

DFSMSdss

DFSMShsm

DFSMSrmm

DFSMSopt

4.3.1 DFSMSdfp

The Data Facility Product (DFP) component provides storage, data, program, tape and device management functions.

DFP is responsible for the creation and accessing of data sets. It provides a variety of different access methods to organize, store and retrieve data, through program and utility interfaces to VSAM, partitioned, sequential, and direct access types.

DFP also provides the Interactive Storage Management Facility (ISMF) which allows the definition and maintenance of storage management policies interactively. It is designed to be used by both storage administrators and end users.

4.3.1.1 ISMF for the End User

Figure 8 on page 26 shows the ISMF primary option menu displayed for an end user. Various options allow the user to list the available SMS classes, display their attributes, and build lists of data sets based upon a selection criteria. These lists are built from VTOC or catalog information, and tailored using filtering, sorting, masking criteria. This panel is selected from the ISPF/PDF primary menu (dependent upon site customization).

ISMF PRIMARY OPTION MENU - DFSMS/MVS 1.5

Enter Selection or Command ===>

Select one of the following options and press Enter:

0

ISMF Profile

- Change ISMF User Profile

1

Data Set

- Perform Functions Against Data Sets

2

Volume

- Perform Functions Against Volumes

3

Management Class

- Specify Data Set Backup and Migration Criteria

4

Data Class

- Specify Data Set Allocation Parameters

5

Storage Class

- Specify Data Set Performance and Availability

9

Aggregate Group

- Specify Data Set Recovery Parameters

L

List

- Perform Functions Against Saved ISMF Lists

R

Removable Media Manager

- Perform Functions Against Removable Media

X

Exit

- Terminate ISMF

Figure 8. ISMF Primary Option Menu for End Users

26Storage Management with DB2 for OS/390

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Image 48
IBM 5655-DB2, 5695-DF1 manual DFSMS/MVS Components, DFSMSdfp, Ismf for the End User, Ismf Primary Option Menu DFSMS/MVS

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.