Storage control device and storage system
AssigneeFujitsu Limited
InventorYasuyuki NAKATA
Life of this patent
Estimating the term…
Abstract
A storage control device includes a processor. The processor is configured to receive a read request from a backup device including a memory unit. The processor is configured to transmit, upon receiving a write request from a host device after the read request is received, first data to the backup device as a response to the read request. The write request requests to write the first data. The processor is configured to transmit a writing completion response to the host device upon receiving a writing completion notification from the backup device. The writing completion response notifies of completion of writing the first data. The writing completion notification notifies of completion of writing the first data in the memory unit.
Claims8
A storage control device, comprising:
- a processor configured to
- receive a read request from a backup device including a memory unit,
- transmit, upon receiving a write request from a host device after the read request is received, first data to the backup device as a response to the read request, the write request requesting to write the first data, and
- transmit a writing completion response to the host device upon receiving a writing completion notification from the backup device, the writing completion response notifying of completion of writing the first data, the writing completion notification notifying of completion of writing the first data in the memory unit.
A storage control device, comprising:
- a memory unit;
- and
- a processor configured to
- transmit a read request to a relay device,
- receive first data as a response to the read request from the relay device, the first data being received by the relay device from a host device after the read request is transmitted, and
- write the first data in the memory unit.
A storage system, comprising:
- a first storage control device including a first processor;
- and
- a second storage control device including a memory unit and a second processor,
- wherein
- the first processor is configured to
- receive a read request from the second storage control device,
- transmit, upon receiving a write request from a host device after the read request is received, first data to the second storage control device as a response to the read request, the write request requesting to write the first data, and
- transmit a writing completion response to the host device upon receiving a writing completion notification from the second storage control device, the writing completion response notifying of completion of writing the first data, the writing completion notification notifying of completion of writing the first data in the memory unit, and
- the second processor is configured to
- transmit the read request to the first storage control device,
- receive the first data from the first storage control device,
- write the first data in the memory unit, and
- transmit the writing completion notification to the first storage control device.
Dependencies are inferred from the claim text.