Speichersystem und Verfahren zur Erstellung eines Wiederherstellungsträgers

摘要

There is provided a snapshot management table replication section for replicating the management table for the snapshot corresponding to the snapshot journal closest to the recovery point before the recovery point journal corresponding to the designated recovery volume when making the recovery volume and a recovery volume production section for making the recovery volume by updating the management table of the snapshot replicated by the snapshot management table replication section based on the journal data written to the second storage region from the snapshot journal to the recovery point journal corresponding to the designated recovery volume.