International Business Machines Corporation

Travis Janssen

Brian D Hatfield

Sangeetha Seshadri

Umesh Deshpande

Nicholas Linck

Runyu Jin

An embodiment includes detecting, by a Recovery System, a cache metric where the cache metric comprises a probability of access to a data object for each of a plurality of time segments of a failover log, where the probability of access to the data object for each of the plurality of time segments is based on an access time of the data object contained in the failover log. The embodiment also includes responsive to receiving the cache metric, caching by the Recovery System of the data object based on the cache metric where the data object is cached in a standby cache of the Recovery System.

Application recovery accelerator

An embodiment enables a first machine to receive an asynchronous data update from a second machine, the asynchronous data update comprising a first stream of identifiers and a second stream of data, wherein the first stream of identifiers comprises a first identifier corresponding to a first data segment in the second stream of data. An embodiment analyzes, as a part of the asynchronous data update, the first stream of identifiers. An embodiment determines at a first time, responsive to the analyzing, that the first data segment corresponding to the first identifier has not arrived at the first machine by the first time. An embodiment updates, responsive to the determining at the first time, a record at the first machine with the first identifier. An embodiment updates the record at a second time, responsive to receiving the first data segment at the first machine at the second time.

Data replica change analysis

A computer-implemented method according to one embodiment includes creating a log of one or more events occurring during a performance of continuous data protection (CDP) for an instance of data; in response to identifying a conclusion of the performance of CDP for the instance of data, determining a value for the one or more events within the log; and conditionally creating and storing a snapshot of the instance of data, based on a comparison of the value for the one or more events to a predetermined threshold.

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San Jose, CA, United States of America

Travis Janssen