Storage control apparatus, storage control method, and computer product
AssigneeFujitsu Limited
InventorArata Ejiri
Life of this patent
Estimating the term…
Abstract
A controller updates a partition arrangement table and a backup-disk management table. The controller also creates, in a first disk, a logical memory area for storing a backup directory that has been stored in the first disk and that corresponds to a primary directory stored in a second disk of a processing element in which a failure has occurred.
Claims12
A storage control apparatus that includes a plurality of storage units connected with one another via a network and controls original data and backup data stored in the storage units, the storage units including a first storage unit that stores first original data in a first primary directory and a second storage unit that stores second original data in a second primary directory and backup data of the first original data in a first backup directory, the storage control apparatus comprising:
- a failure detecting unit that detects an occurrence of a failure in the first primary directory;
- and
- a logical-memory-area creating unit that creates, upon detection of the failure, a logical memory area in the second storage unit, the logical memory area being created in an area separate from the second primary directory and the first backup directory, in the logical memory area, the first backup directory and a second backup directory being allocated, and the first backup directory being allocated as the first primary directory.
A storage control method that is applied to a storage control apparatus including a plurality of storage units connected with one another via a network and controlling original data and backup data stored in the storage units, the storage units including a first storage unit that stores first original data in a first primary directory and a second storage unit that stores second original data in a second primary directory and backup data of the first original data in a first backup directory, the storage control method comprising:
- detecting an occurrence of a failure in the first primary directory;
- and
- creating, upon detection of the failure, a logical memory area in the second storage unit, the logical memory area being created in an area separate from the second primary directory and the first backup directory, in the logical memory area, the first backup directory and a second backup directory being allocated, and the first backup directory being allocated as the first primary directory.
A computer-readable recording medium that stores therein a computer program that causes a computer to control original data and backup data stored in a plurality of storage units connected with one another via a network in a storage control apparatus, the storage units including a first storage unit that stores first original data in a first primary directory and a second storage unit that stores second original data in a second primary directory and backup data of the first original data in a first backup directory, the computer program causing the computer to execute:
- detecting an occurrence of a failure in the first primary directory;
- and
- creating, upon detection of the failure, a logical memory area in the second storage unit, the logical memory area being created in an area separate from the second primary directory and the first backup directory, in the logical memory area, the first backup directory and a second backup directory being allocated, and the first backup directory being allocated as the first primary directory.
Dependencies are inferred from the claim text.