Data transfer and recovery

摘要

A backup image generator can create a primary image and periodic delta images of all or part of a primary server. The images can be sent to a network attached storage device and one or more remote storage servers. In the event of a failure of the primary server, an updated primary image may be used to provide an up-to-date version of the primary system at a backup or other system. As a result, the primary data storage may be timely backed-up, recovered and restored with the possibility of providing server and business continuity in the event of a failure.

主权项

1. A method comprising:
providing a base image of a primary system to a remote backup service; providing a first plurality of delta images of the primary system to the remote backup service, each delta image of the first plurality of delta images representing an incremental change in a state of the primary system; updating the base image at the remote backup service to create an updated image that reflects the incremental change represented by each of the first plurality of delta images; deactivating the primary system; activating the updated image at the remote backup service; and receiving, from the remote backup ser rice, a second plurality of delta images at a local backup system, the local backup system being local to the primary system, each of the second plurality of delta images representing an incremental change in a state of the updated image, at the remote backup service.