STORAGE APPARATUS AND DATA MANAGEMENT METHOD

摘要

A storage apparatus and data management method capable of utilizing storage resources effectively is proposed. A storage apparatus storing primary data and analysis data obtained based on the primary data as a result of the execution of specified analysis processing by an external computing system is designed so that metadata of the analysis data includes regeneratable attribute information indicating whether or not the corresponding analysis data can be regenerated by means of the analysis processing by the external computing system; and a control unit regularly or irregularly selects the analysis data, which satisfies a specified condition and can be regenerated, based on the metadata for each piece of the analysis data and deletes the selected analysis data from one or more storage devices.

主权项

1. A storage apparatus storing primary data and analysis data obtained by executing specified processing on the primary data,
the storage apparatus comprising: one or more storage devices storing the primary data, the analysis data, and metadata for each piece of the analysis data, the metadata storing management information about the analysis data; and a control unit for controlling inputting and outputting of the primary data and the analysis data to and from one or more storage devices; wherein the metadata includes regeneratable attribute information indicating whether the corresponding analysis data can be regenerated or not; and wherein the control unit: selects the analysis data, which satisfies a specified condition and can be regenerated, based on the metadata; and deletes the selected analysis data from one or more storage devices.