Disk array apparatus, method for controlling the same, and program
AssigneeHitachi, Ltd.
InventorsTakeshi Shigemura, Seiki Morita, Atsushi Ishikawa, Yoshihiro Uchiyama
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Abstract
The present invention proposes a disk array apparatus that can be inexpensively constructed while maintaining its high reliability, and also proposes a method for controlling the disk array apparatus, and a program. In the disk array apparatus, a storage area in a storage device for storing system information is managed by dividing the storage area into a system area for storing system information and a data area for storing data from a host device, and verification processing is executed on the data area in the storage device in a first cycle and on the system area in a second cycle that is shorter than the first cycle.
Claims18
A disk array apparatus operating based on predetermined system information, the disk array apparatus comprising:
- a storage device for storing the system information;
- and
- a management unit for managing a storage area in the storage device by dividing the storage area into a system area for storing the system information and a data area for storing data from a host system,
- wherein the management unit executes verification processing on the data area in the storage device in a first cycle, and executes verification processing on the system area in a second cycle that is shorter than the first cycle.
A method for controlling a disk array apparatus operating based on predetermined system information, comprising:
- a first step of managing a storage area in a storage device for storing the system information by dividing the storage area into a system area for storing the system information and a data area for storing data from a host system;
- and
- a second step of executing verification processing on the data area in the storage device in a first cycle, and executing verification processing on the system area in a second cycle that is shorter than the first cycle.
Dependencies are inferred from the claim text.