Patent attributes
Various arrangements for performing an online migration between server systems is presented. A transfer, from a source server system to a target server system, of a database, may be initiated. During the transfer, the database of the source server system may remain online. A timing indication of when transfer of the database was initiated may be recorded. While transferring the database, modifications to the records of the database may be received. The plurality of modifications may be stored, and, for each modification of the plurality of modifications, a timing indication of when the modification was received may be stored. After completing the transfer of the database to the target server system, the plurality of modifications to the database stored by the target server system may be applied while the source server system is online.
