System and method for updating non-VSAM data set control information for data transferred from a source to a target

A method for maintaining non-VSAM data set control information when moving a data set from a source volume set having at least one source volume to a target volume set having at least one target volume, each volume having a volume table of contents (VTOC) containing the non-VSAM data set control information and a number of tracks, each track having a number of records, comprising:

• determining a total number of tracks occupied by the data set on the at least one source volume;
• allocating in the at least one target volume at least the total number of tracks occupied by the data set on the at least one source volume;
• moving the data set from the at least one source volume to the at least one target volume;
• analyzing the at least one target volume to determine the last track and record used by the data set;
• and
• recording the last track and record used by the data set for each target volume in a corresponding target volume VTOC.

A method for maintaining non-VSAM data set control information when moving a non-VSAM data set that is not read into a host from a source volume set containing at least one source volume to a target volume set containing at least one target volume, each volume having a volume table of contents (VTOC) containing the non-VSAM data set control information and a number of tracks, each track having a number of records, comprising:

• determining the total number of records used by the data set;
• allocating at least the total number of records used by the data set in the target volume set;
• moving the data set from the source volume set to the target volume set;
• determining the last track and record used on each target volume of the target volume set, comprising:
• (a) comparing the number of records used in the data set to the number of records allocated in the first target volume;
• (b) determining the number of tracks used on the first target volume and the number of records used on the last track by dividing the number of records used in the data set by the number of records that can be stored on each track;
• (c) if the number of records allocated in the first target volume is less than (i) the number of records used in the data set for the first target volume or (ii) the number of records remaining to be stored for subsequent target volumes:
• determining the number of records of the data set remaining to be stored;
• comparing the number of records remaining to be stored to the number of tracks allocated on a subsequent target volume;
• and
• determining the number of tracks used on the subsequent target volume and the number of records used on the last track of the subsequent target volume by dividing the number of records used in the data set by the number of records that can be stored on each track;
• and
• repeating steps (b) and (c) as necessary for subsequent target volumes.

A system for maintaining a non-VSAM data set control information when moving a data set from a source volume to a target volume, comprising:

• a host computer, comprising a processor and a memory;
• and
• a data movement program residing on the memory operable to direct the host computer to:
• determine a total number of tracks occupied by the data set on the source volume;
• allocate in the at least one target volume at least the total number of tracks occupied by the data set on the source volume;
• move the data set from the at least one source volume to the target volume;
• analyze the target volume to determine the last track and record used by the data set;
• and
• record the last track and record used by the data set in a VTOC of a last target volume to hold data for the data set.