File Utility Programming (FUP) Reference Manual

FUP Commands
File Utility Program (FUP) Reference Manual—523323-015
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ALTER Parameters for Partitioned Files
do not specify a value, sec-extent-size defaults to the
pri-extent-size value. You cannot define primary or secondary extents as
zero pages when altering files.
For partitioned unstructured files where one or more partitions reside on a 512
byte sector disk enclosure in an external disk enclosure
1
, DP2 has additional
restrictions. You must specify both the pri-extent-size and the sec-
extent-size so that they can be explicitly divisible by 14. DP2 does not
automatically round the size up. Additionally, you must specify the same pri-
extent-size for all partitions and the same sec-extent-size for all
partitions.
You can specify these values for pri-extent-size and
sec-extent-size:
0:maximum [ PAGE[S] ]
specifies the extent size in pages (2,048-byte units). Possible values are:
Since an extent size of zero is one page (2,048 bytes), one page is
allocated if you specify extent size as zero.
0:maximum BYTE[S]
specifies the extent size in bytes. Possible values of maximum are:
The FUP process rounds the extent size up to the next full page. If you
specify 2,047 bytes, FUP allocates one page. If you specify 2,049 bytes,
FUP allocates two pages.
0:maximum REC[S]
specifies the extent size based on the current settings for
record-length (REC), data-block-length (BLOCK),
index-block-length (IBLOCK), key-field lengths, and compression
settings. Possible values are:
1. Examples of such disks are JBOD (sub-type = 53) and ESS (sub-type = 52).
Format 1 Format 2
0:65,535 [ PAGE[S] ] 0:512,000,000 [ PAGE[S] ]
Note. If you specify an extent size over 65,535 pages, you must assign Format 2
to your files. For more information about Format 2 files, see Handling Different
Types of Files on page 1-22.
Format 1 Format 2
0:134,215,680 BYTE[S] 0:2,147,483,647 BYTE[S]
Format 1 Format 2
0:134,215,680 REC[S] 0:2,147,483,647 REC[S]