Salesforce, Inc.

Hefeng Yuan

Milena Bergant

Jeffrey Zoch

Hemanth Siddulugari

Steven Raspudic

Praveenkumar Bagavathiraj

Goutham Meruva

Nithya Muthukrishnan

Techniques are disclosed pertaining to migrating a database between different storage clusters. A computer system identifies a current state of the database that is managed by a database application that enables a client application to access data of the database stored at a first storage cluster. The computer system copies first particular data of the database that is associated with the current state from the first storage cluster to a second storage cluster. After the copying, the computer system transitions the database application into a read-only mode in which it processes read but not write traffic. The computer system copies, from the first storage cluster to the second storage cluster, second particular data of the database that was generated by the database application during the copying of the first particular data. The computer system may also instantiate another instance of the database application in association with the second storage cluster.

Database migration

Techniques are disclosed relating to archive operations for database systems. In some embodiments, a database system initiates one or more archive operations to archive one or more data extents for a database maintained by the database system. The system may halt archive activity for the database, in response to determining that archive operations for a threshold amount of data extents are initiated but not completed. The system may cancel at least one of the one or more archive operations. The system may determine to resume activity for the database based on determining that a threshold timer interval has elapsed and determining that a threshold amount of storage space is available for the database system. Disclosed embodiments may improve database availability, relative to traditional techniques.

Archive control techniques for database systems

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Sammamish, WA, United States of America

Hefeng Yuan