Storage and data protection method of storage
AssigneeHitachi, Ltd.
InventorsAkira DEGUCHI, Yusuke YAMAGA
Life of this patent
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Abstract
To safely store data. A storage 200 connected to another storage 400 via a network, the storage 200 including: a processor 216 configured to process data to be stored in a storage device 220, in which the processor 216 is configured to acquire a first snapshot for a volume generated using a storage area of the storage device, compare a second snapshot, which is a previously acquired snapshot, with the first snapshot to retrieve incremental data, transfer the incremental data to the other storage and store the incremental data as backup data, and set lock of the backup data stored in the other storage.
Claims14
A storage connected to another storage via a network, the storage comprising:
- a processor configured to process data to be stored in a storage device, wherein
- the processor is configured to
- acquire a first snapshot for a volume generated using a storage area of the storage device,
- compare a second snapshot, which is a previously acquired snapshot, with the first snapshot to retrieve incremental data,
- transfer the incremental data to the other storage and store the incremental data as backup data, and
- set lock of the backup data stored in the other storage.
A data protection method of a storage, which includes a processor configured to process data to be stored in a storage device and which is connected to another storage via a network, the method comprising:
- the processor
- acquiring a first snapshot for a volume generated using a storage area of the storage device,
- comparing a second snapshot, which is a previously acquired snapshot, with the first snapshot to retrieve incremental data,
- transferring the incremental data to the other storage and storing the incremental data as backup data, and
- setting lock of the backup data stored in the other storage.
Dependencies are inferred from the claim text.