Patent ID: 9720991
Date: 2017-08-01
CPC Classifications: G06F

Claim:
1. A method of seamless data migration, comprising: while a pointer of a data locator indicates a source partition as a location of a data, transferring, by a data migration server, a replica of a database partition from the source partition to a target partition while maintaining read and write properties of the source partition, wherein changes in the source partition during transfer are tracked as a source delta; while the pointer of the data locator indicates the source partition as the location of the data, disabling, by a data migration server, write operations on the source partition after the transfer of the replica is complete; while the pointer of the data locator indicates the source partition as the location of the data, applying, by a data migration server, the source delta to the target partition upon disabling the write operations on the source partition; and updating, by a data migration server, the pointer of the data locator to indicate the target partition as the location of the data after applying the source delta to the target partition.