Ca, Inc.

Ca Technologies, Inc.

Michael D Livingston

Charles F Waselewski

Systems and methods are provided for tracking System Management Facility (SMF) record types using a small array. An index entry can be modified by adding an extension that tracks what record types are missing, rather than what record types are included in a particular history file. As log data comprising a plurality of history files is received, a flag bit in the header of each history file indicates that the associated history file comprises extended record types. An extension is added to each of the index entries associated with the history files that contain extended record types. Extensions may indicate record type gaps in the associated history file. Upon receiving a query for a particular record type of data stored in the data store, the extension can be utilized to determine which history files do not have the particular record type and can be skipped in the search.

Tracking a large variety of record types with a small array

According to aspects of the present disclosure, archived system management facility (SMF) data may be verified against a signature, even if the data to be verified against the signature is split among two or more history files. When archiving an SMF data dump, an indication is kept that includes locations of signatures found while a system management facility (SMF) data dump is being archived. For example, the indication may be kept in metadata of the history file (e.g., in the history file itself, a status block outside the history file, a collective index, etc.). Then when extracting the archived data, if the data corresponding to a signature is in a different history file, the data corresponding to the signature from all of the history files is concatenated for verification.

Managing embedded digital signature locations in a stream of data files

A method of archiving data from a logstream includes determining a begin time parameter earlier in time than a last record obtained from the logstream of data. A request is sent for records from the logstream of data starting at the begin time parameter. Records are received from the logstream of data and selected records are archived.

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Germantown, MD, United States of America

Michael D Livingston