| 摘要 |
A method for forward recovery of a catalog of a data storage system, comprising providing a recovery catalog and SMF records. In reverse chronological order, the (i)th entry of the record is checked for a data set change command. If none, the next entry is examined. Otherwise, the (j)th data set is identified and checked for inclusion in the recovery catalog. If it already is, the next entry is selected. If not, a data set location record is added. This process is repeated for each entry in the SMF record. Next, a (h)th data set on the (k)th volume is selected and checked for inclusion in the recovery catalog. If that (h)th data set has been added to the recovery catalog, a next data set is selected. Otherwise, a data set location record for the (h)th data set is added. The process is repeated for each data set on each volume.
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