Patent attributes
Described are techniques for performing migration from a source node to a target node. Application data used by an application is migrated from the source node to the target node. I/O operations from the application directed to the application data are sent to the target node. While migrating the application data, first processing is performed on the target node in connection with I/O operations directed to the application data. The first processing includes monitoring read operations directed to the application data. Migrating the application data includes copying a data portion of the application data from the source node to the target node. The data portion has a logical location in the application data determined in accordance with the read operations. The data portion is prefetched by the migrating and copied to the target node prior to the target node receiving a read requesting data of the data portion.
