File Utility Programming (FUP) Reference Manual

FUP Commands
File Utility Program (FUP) Reference Manual—523323-015
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SET Parameters for All File Types
MAXEXTENTS maximum-extents
sets the maximum number of extents to be allocated (for nonpartitioned files or
key-sequenced partitioned files). Specify maximum-extents as an integer from
16 through n, where n is a maximum value determined by the amount of free
space in the file label. The FUP process rounds any value you set (from 1 through
15) up to 16. The absolute maximum is 978 extents, and the default is 16.
It is not always possible to allocate all the extents specified by
maximum-extents. The actual number of extents that can be allocated depends
on the amount of space in the file label. If there are alternate keys or partitions, the
maximum number of extents allowed is less than 978. If you specify
MAXEXTENTS, you must also consider the primary and secondary extent sizes to
avoid exceeding the maximum file size.
When the primary and secondary extent size (plus the specified MAXEXTENT
size) is larger than two gigabytes, a CREATE operation rejects the request with
file-system error 21 (illegal count specified).
[ NO ] REFRESH
causes the file label to be copied to disk whenever the file control block is marked
as dirty. This situation occurs if the end of file or a free-space block changes. If the
only change is updating the LAST MODIFIED field, the file label is not written to
disk. The default is NO REFRESH (the label is not copied to disk).
[ NO ] SERIALWRITES
sets the mode of writes to the mirror: serial or parallel. The default is NO
SERIALWRITES.
TYPE file-type
sets the file type. The default is U. Values for file-type are:
[ NO ] VERIFIEDWRITES
sets the mode of file writes: verified or unverified. The default is NO
VERIFIEDWRITES.
U or 0
Unstructured file
R or 1
Relative file
E or 2
Entry-sequenced file
K or 3
Key-sequenced file