DATA REPLICA CONTROL

摘要

A replica control system includes software to control replication in virtual environments. The replica control system identifies a plurality of data blocks within an underlying storage volume in response to a request to update a replica of a target storage volume, identifies changed data blocks of the plurality of data blocks within the underlying storage volume, and identifies a subset of the changed data blocks with which to update the replica of the target storage volume based on a characteristic of the changed data blocks.

主权项

1. A computer readable medium having program instructions stored thereon that, when executed by a replica control system, direct the replica control system to:
in response to a request to update a replica of a target storage volume, identify a plurality of data blocks within an underlying storage volume that underlies the target storage volume; identify changed data blocks of the plurality of data blocks within the underlying storage volume; and identify a subset of the changed data blocks, each data block of the subset having a specified characteristic, with which to update the replica of the target storage volume.