System Options under OpenVMS

WORKCACHE= System Option: OpenVMS

Specifies the size of the I/O data cache allocated for a file in the Work library.

Default:	65024
Valid in:	configuration file, SAS invocation, OPTIONS statement, SAS System Options window, VMS_SAS_OPTIONS DCL symbol
Category:	Files: SAS files
PROC OPTIONS GROUP=	SASFILES
OpenVMS specifics:	all

Syntax
Details
See Also

Syntax

WORKCACHE=n | nK | hexX | MIN | MAX

n | nK

specifies the size of the I/O data cache in multiples of 1 (bytes) or 1,024 (kilobytes). You can specify decimal values for the number of kilobytes. For example, a value of 8 specifies 8 bytes, a value of .782k specifies 801 bytes, and a value of 3k specifies 3,072 bytes.

Range:

0 - 130,048

hexX

specifies the size of the I/O data cache as a hexadecimal value. You must specify the value beginning with a number (0-9), followed by hexadecimal characters (0-9, A-F), and then followed by an X. For example, the value 2dx sets the size of the I/O data cache to 45 bytes.

MIN

sets the size of the I/O data cache to 0.

MAX

sets the size of the I/O data cache to 130,048 .

Details

The WORKCACHE= system option controls the size (in bytes) of the data cache used to buffer I/O pages for files that are created in the Work library. This option functions exactly like the CACHESIZE= data set option, which you can use in a LIBNAME statement. However, because no LIBNAME statement is explicitly issued for the Work library, the WORKCACHE= system option is necessary to enable you to specify a default cache size for all files that are created in the Work library by the V8, V8TAPE, or V6 engines. The value of n must be a positive integer.