By using the FILESYNC=
system option, SAS can tell the operating system when to force data
that is temporarily stored in operating system buffers to be written
to disk. Only SAS files in a permanent SAS library are affected; files
in a temporary library are not affected.
If you specify a value
other than the default value of HOST, the following occurs:
-
the length of time it takes to
run a SAS job increases
-
the small chance of loosing data
in the event of a system failure is further reduced
Consult with your system
administrator before you change the value of the FILESYNC= system
option to a value other than the default value.
z/OS Specifics: Under
z/OS, the FILESYNC= system option affects SAS files only in
UNIX file system (UFS) libraries. For more information, see
FILESYNC= System Option: z/OS in SAS Companion for z/OS.