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Records the current request number of an immediate transfer (that is, TYPE=EXECUTE). When the XCOMGLOB DD statement for a TYPE=EXECUTE transfer is missing, the request number always defaults to 2000. Sites can share this data set between jobs to ensure that all TYPE=EXECUTE transfers are assigned a unique request number. To update the request number for immediate transfers from TSO/ISPF, the XCOMGLOB and XCOMREST allocated files must be in the user's TSO logon procedure. CA XCOM Data Transport ignores the XCOMGLOB DD statement when queued transfers (TYPE=SCHEDULE) are initiated.
To use this facility, create a fixed‑block sequential data set containing an 80‑byte record. It is recommended that this file be included when running TYPE=EXECUTE transfers utilizing the checkpoint/restart feature, to ensure that the request number is unique. This allows the session partner to correctly identify the checkpoint data when an interrupted transfer is restarted.
The same global data set should be used for all TYPE=EXECUTE job streams that run under the same ACBNAME.
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