SEQENGINE= System Option: z/OS

Specifies the default engine to use when assigning sequential access SAS libraries.
Valid in: Configuration file, SAS invocation, OPTIONS statement, SAS System Options window
Category: File Control: SASFILES
PROC OPTIONS GROUP= SASFILES
Default: TAPE
z/OS specifics: All

Syntax

SEQENGINE=engine-name

Required Argument

engine-name
can have the following values:
TAPE
specifies the engine for accessing sequential SAS libraries in the latest tape format.
V9TAPE | V9SEQ | V8TAPE | V8SEQ |V7TAPE | V7SEQ
specifies the engine for accessing sequential SAS libraries in SAS 9.2, Version 8, or Version 7 tape format. The SAS 9.2, Version 8, and Version 7 engines are identical.
V6TAPE | V6SEQ
specifies the engine for accessing sequential SAS libraries in Version 6 tape format.

Details

When you assign a SAS library that is not currently assigned within the SAS session, if the engine is not specified on the assignment request, then SAS has to determine which engine to use to process the library. If the library already exists, and if its engine format can be determined, then SAS uses the newest engine that is compatible with the format of the library. Otherwise, if the engine format of the library cannot be determined, then SAS selects an engine to use by default. If the assignment request specifies a device or type of library that supports only sequential access, then SAS uses the engine that is specified by the SEQENGINE system option. Otherwise, SAS uses the engine that is specified by the ENGINE option.
The SEQENGINE option supplies the default value when the library assignment specification refers to one of the following conditions:
  • a new tape data set
  • an empty tape data set
  • an empty disk data set with RECFM=U specified
  • a library that is processed by the IBM product, BatchPipes