File Utility Programming (FUP) Reference Manual

FUP Overview
File Utility Program (FUP) Reference Manual—523323-015
1-30
Unique features of Key-Sequenced File with
Increased Limits

When creating a key-sequenced file with increased limits (EKS file with increased
limits), the primary and secondary extent size of the primary partition must be
greater than or equal to 140, otherwise, the default value of 140 is used.

When creating a key-sequenced file with increased limits with BLOCK LENGTH =
32768, the primary and secondary extent size of the primary partition must be
greater than or equal to (16, 16) otherwise, the default value of (16, 16) is used.

When accessing the primary partition of a key-sequenced file with increased limits
(EKS file with increased limits), in an unstructured mode, reads on the file return
FEEOF (1) and writes on the file return FEFILEFULL (45). This is because the
metadata stored in the primary partition cannot be accessed by non-privileged
applications.