Search for tag: "ims_fundamentals"

Unit 9, Section 18: Dynamic Resource Definition (DRD) Process Flow

This video describes DRD, which you can use to issue commands to create, update, and delete MODBLKS resources dynamically and to create programs or transactions, instead of running an IMS Gen.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 17: Single Point of Control (SPOC)

This video describes TSO SPOC, which is an ISPF application that is invoked by using the command DFSSPOC and can be used to control one or more IMS DBCTL, IMS DB/DC, or IMS DBCTL systems.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 16: Type 2 Commands: UPD and QRY TRAN Examples

This video describes several type-2 commands including the update resource and query transaction commands.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 15: IMSPlex Type 2 Commands Overview

This video introduces IMSplex-related Type 2 commands. These commands can be entered only through the OM interface.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 14: Operations Manager (OM)

This video describes the Operations Manager (OM), which is a server address space in the IMSplex. It acts as a common point of command entry into the IMSplex.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 13: Managing Shared IMS Resources and Common Service Layer (CSL)

This video describes how shared resources are managed in an IMSplex and the Common Service Layer, or CSL, that consists of additional address spaces providing systems management functions not…

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 12: Shared Queues Components

This video describes additional components that associated with IMS systems that use shared queues, such as the CQS (Common Queue Server).

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 11: Shared Queues Example

This video describes how processing of a transaction could occur in an IMS environment in which there are multiple IMS systems that use the same shared queues structure.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 10: Shared Queues Overview

This video introduces the concept of shared queues, which is a possible option for an IMS TM (IMS DB/DC or IMS DCCTL) environment.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 9: IMS Failure with Data Sharing and Fast Database Recovery (FDBR)

This video describes generally how failures are handled in a data sharing environment.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 8: Shared Virtual Storage Option (VSO)

This video describes Shared VSO that also uses a Cache Structure to store the contents of some or all of a DEDB area and the data stored in the CF is the “official” copy. The contents of…

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 6: Data Sharing, part 3 (Block-Level Data Sharing and Data Sharing Summary)

This video describes block-level sharing in more detail. IRLM coordinates lock requests between (and within) IMS systems to ensure that lock requests for any specific block at any given time are…

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 5: Data Sharing, part 2 (DBRC Share-Level Options)

This video describes how DBRC controls data sharing with share-level options. Unless a database is registered to DBRC with a SHARELVL set to 1, 2, or 3, IMS and DBRC code will prevent a database from…

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 4: Data Sharing, part 1 (Data Sharing Requirement and DBRC Share-Level Options)

This video introduces data sharing, which provides two levels of sharing: database-level sharing and block-level sharing.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 3: Remote Site Recovery

This video introduces Remote Site Recovery (RSR), which is an added feature of IMS DB. Its purpose is to provide for the recoverability of IMS databases at some geographically remote location.

From  5500031CVP 5500031CVP on February 19th, 2021

Unit 9, Section 2: Typical IMS Failure and Recovery

This video describes typical IMS failures from various user points of view and how you might recover from those failures.

From  5500031CVP 5500031CVP on February 19th, 2021