Send files

This section explains the files that can be sent with HULFT for Mainframe.

(1) File Organizations

Send file organizations are as follows:

  • Sequential Organization file

  • Extended-format data set

  • Partitioned data set (PDS)

  • Partitioned data set extended (PDSE)

  • VSAM file (ESDS, KSDS, or RRDS)

Note

Make sure to specify member names when the organization is partitioned data set (PDS) or partitioned data set extended (PDSE).

(2) Record Format

HULFT can handle files in the following record formats as Send files:

Sequential Organization file:

Fixed-length or variable-length

Extended-format data set:

Fixed-length or variable-length

Partitioned data set (PDS):

Fixed-length or variable-length

Partitioned data set extended (PDSE):

Fixed-length or variable-length

VSAM file:

Fixed-length or variable-length

(3) Block Size

For the following file organizations, the block size must be the track capacity or lower:

  • Sequential Organization file

  • Extended-format data set

  • Partitioned data set (PDS)

  • Partitioned data set extended (PDSE)

For VSAM files, there is no restriction placed on CI size.

(4) Record Length

The maximum length for a single record of a file in order for it to be handled as the Send file is as follows:

Binary transfer

For binary transfer, there is no restriction placed on record length. However, to carry out sending with RDW, the file must be in variable-length record format, and the maximum record length is 32,752 bytes.

Text transfer

For code conversion on the host on the sending side, the maximum length for a single record is 32,750 bytes both in fixed-length format and in variable-length format. For code conversion on the host on the receiving side, or when codes are not converted, the maximum length for a single record is 32,760 bytes in fixed-length format and 32,756 bytes in variable-length format. However, when the Subsequent Character (PAD) is not 'N,' the maximum length for a single record is 32,752 bytes both in fixed-length format and in variable-length format. Note that the data of byte 32,753 and after is deleted.

Format transfer and multi format transfer

The maximum length is 19,997 bytes both in fixed-length format and in variable-length format.

(5) File Size

There is no restriction placed on file size.

Files whose size is 0 bytes can be sent.

(6) Format Field Lengths and Number of Fields

Table 3.5 shows the length of one field for format transfer and multi format transfer.

The number of fields that can comprise a single record is up to 1000.

Table 3.5 List of Format Field Lengths

Field Type

Field Length (Bytes)

Remarks

X

1 to 9999

 

M

1 to 9999

 

N

2 to 9998

Only even number values can be handled.

9

1 to 18

 

B

2, 4, 8

 

P

1 to 10

Only up to 18 digits can be handled.

S

1 to 18

 

F

4, 8

 

I

1 to 9999

 

(7) Sign of Signed Decimal

For details about the available values for the sign of signed decimal, refer to Code Conversion Manual.

(8) Other points to be noted

  • Variable-length spanned records are not supported.

  • Files with passwords are not supported.

  • Transfer of multi-volume files is possible, but files must be cataloged.

  • For details about using tape volumes, refer to Operation Manual.