Patent ID: 11861205
Assignee: HITACHI, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The distributed storage system according to claim 2, wherein
the storage owner volume of the third computer is a group storage owner volume being an owner volume to which a group storage function is applied,
the group storage function is a storage function that relates to a volume region in the owner volume to a volume region in another volume or to a storage region mapped to the volume region in such another volume,
the third computer has domain control data as control data indicating a relationship between the volume region in the group storage owner volume and the volume region in another volume or the storage region mapped to the volume region in such another volume, and
when the third computer identifies that the volume as the migration object from the third computer to the fourth computer is the group storage owner volume, the third computer copies the domain control data on the group storage owner volume to the fourth computer.