Backup system, backup method, and program therefor
AssigneeHitachi, Ltd.
InventorNobuyuki Saika
Life of this patent
Estimating the term…
Abstract
Data is stored to a disk drive (4) in a directory path designated by a write request, and a directory path as a backup object and the directory path for the write request are compared with each other. When the directory paths match each other, the data is transferred to backup systems (3 and 5). In the case where the directory path for the write request is not the backup object, the data in the directory path is requested to be backed up when the directory path matches a preset condition.
Claims13
A data backup method for storing data for which a write request has been received to a first system in a directory path designated by the write request and transferring the data to a second system, the method comprising:
- presetting a directory path for a backup object to be transferred to the second system;
- storing the data in the directory path for the first system based on the write request;
- comparing the directory path for the received write request and the directory path for the backup object transferred to the second system with each other, and when the directory paths match each other, transferring the stored data to the second system;
- when the directory path designated by the write request does not match the directory path for the backup object, determining whether or not the designated directory path matches a preset condition;
- when the designated directory path matches the preset condition, issuing a request to transfer data in the designated directory path to the second system;
- and
- transferring the data to the second system based on the request.
A data backup system, comprising:
- a write control unit that stores data for which a write request has been received to a first system in a directory path designated by the write request;
- a backup control unit that transfers the data to a second system when the directory path is a backup object;
- a backup determination unit that determines whether or not the directory path designated by the write request matches a preset condition when the directory path is not the backup object;
- and
- a backup request unit that issues to the backup control unit a request to transfer data in the directory path to the second system when the directory path matches the condition.
Dependencies are inferred from the claim text.