Recording backup information for backed-up data items in a data item list

A system for recording backup information of a backup of a data set, comprising:

• a processor;
• a computer readable storage medium including code executable by the processor to perform operations, the operations comprising:
• in response to a backup operation of a data set, obtaining information of backed-up data items in the backup operation;
• maintaining data item entries for the backed-up data items in a data item list of the backup information for the data set;
• determining the backed-up data items corresponding to the data item entries in the data item list;
• and
• adding status lists for the entries in the data item list including backed-up status flags having backup information on the backup operations for the backed-up data items corresponding to the data item entries in the data item list.

A method for recording backup information of a data set in a computer readable storage medium, comprising:

• in response to a backup operation of a data set, obtaining information of backed-up data items in the backup operation;
• maintaining data item entries for the backed-up data items in a data item list of the backup information for the data set;
• determining the backed-up data items corresponding to the data item entries in the data item list;
• and
• adding status lists for the entries in the data item list including backed-up status flags having backup information on the backup operations for the backed-up data items corresponding to the data item entries in the data item list.