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Customizing Z Data Tools
Customizing Z Data Tools to use an I/O exit
Using the I/O exit control block
The I/O exit control block is a single parameter that is passed with each call from Z Data Tools to the I/O exit and returns data from the I/O exit to Z Data Tools.
Termination call discussion

Customizing Z Data Tools
- Preparing to customize Z Data Tools
- Customizing the operating environment for Z Data Tools
- Customizing Z Data Tools
- Customizing the Z Data Tools security environment
  Z Data Tools provides security for system-oriented functions through ®either RACF (or an equivalent security product) or the HFMSECUR exit.
- Customizing Z Data Tools to write audit records to SMF
- Customizing the Z Data Tools audit facility for Base component
- Customizing Z Data Tools for national languages
  You can customize Z Data Tools for national languages other than English.
- Customizing Z Data Tools Service Provider for z/OS® Connect
  Z Data Tools Service Provider for IBM® z/OS® Connect Enterprise Edition enables client applications to access IBM Z data sources using z/OS Connect.
- Customizing Z Data Tools to use library management system libraries
- Customizing Z Data Tools to use the Optim™ Data Privacy Provider API
- Customizing Z Data Tools to use an I/O exit
  - Exit protocol
  - Writing your exit
  - Exit control block data names
  - Using the I/O exit control block
    The I/O exit control block is a single parameter that is passed with each call from Z Data Tools to the I/O exit and returns data from the I/O exit to Z Data Tools.
  - Installing your exit
- Customizing Z Data Tools to use a scrambling exit
- Verifying the customization of Z Data Tools
  After you have completed the initial installation and customization of Z Data Tools base function, you can perform the following steps to verify your customization.

Termination call discussion

The last call for a given data set is always one (and only one) termination call. The termination call is intended primarily to allow de-allocation of resources allocated at initialization time. Z Data Tools makes the termination call even if exit processing was terminated by an error or a request from the exit to continue without calling the exit again.

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