HIGH SPEED ASYNCHRONOUS REMOTE MIRRORING

摘要

A method for generating remote replicates of a logical volume at a remote site, the method comprises performing a plurality of replication cycles for generating a plurality (N) of points in time replicates of the logical volume at the remote site. Wherein for each positive integer n that ranges between 2 and N, a performing of a n'th replication cycle comprises: calculating in parallel and by multiple computerized resources of a storage system, multiple n'th point in time differences of multiple subsets of the logical volume; wherein n'th point in time differences of different subsets are calculated by different computerized resources; wherein a n'th point in time difference of a subset is a difference between an (n−1)'th point in time content of the subset and an n'th point in time content of the subset; and sending, in parallel, the multiple n'th point in time differences to the remote site.

主权项

1. A method for generating remote replicates of a logical volume at a remote site, the method comprises performing a plurality of replication cycles for generating a plurality (N) of points in time replicates of the logical volume at the remote site;
wherein for each positive integer n that ranges between 2 and N, a performing of a n'th replication cycle comprises:
calculating in parallel and by multiple computerized resources of a storage system, multiple n'th point in time differences of multiple subsets of the logical volume;
wherein n'th point in time differences of different subsets are calculated by different computerized resources;wherein a n'th point in time difference of a subset is a difference between an (n−1)'th point in time content of the subset and an n'th point in time content of the subset;andsending, in parallel, the multiple n'th point in time differences to the remote site.