Usage Notes - Teradata Tools and Utilities

Teradata® Archive/Recovery Utility Reference

Product
Teradata Tools and Utilities
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-06-05
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B035-2412
Product Category
Teradata Tools and Utilities

The RESTARTLOG runtime option is available only on Windows platforms. (The restart log name on z/OS platforms cannot be changed by RESTARTLOG.)

Use the RESTARTLOG as follows:

  • Teradata ARC adds the extension type RLG to the name of the file specified in RESTARTLOG. Therefore, do not use this extension in the name of the restart log.
  • The restart log is created under the current directory or the working directory, if defined, unless the full path is specified.
  • If RESTARTLOG is not specified, database DBCLOG is the default name of the restart log on the IBM platform. On other platforms, yymmdd_hhmmss is date and time, and <n> is the process ID in the following example of a default restart log name: ARCLOGyymmdd_hhmmss_<n>.RLG.
  • Teradata ARC does not automatically remove the restart log files after the successful completion, therefore clean the files periodically.
  • Delimiters depend on the name of the restart log being specified.
  • On non-IBM platforms, all restart log names should be unique to prevent unintentional sharing of the restart log among multiple jobs. The restart log contains status information about the ARC job being executed and if multiple jobs specify the same restart log name those jobs could share usage of the same restart log if those jobs are run at the same time. Shared usage of a restart log could lead to unpredictable results since multiple jobs will be updating the same file at the same time. This is particularly important for cluster jobs and multi-stream jobs but would also apply to any set of ARC jobs that are executed at the same time.
    The RESTARTLOG runtime parameter only applies to Mainframe systems (z/OS). Restart of Teradata ARC is no longer supported on network-attached systems.