Disk array apparatus, disk array control method and computer program product therefor
AssigneeNEC Corporation
InventorManabu Miyazaki
Life of this patent
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Abstract
A disk array apparatus including a plurality of physical disks, includes: a response time measuring unit measuring a response time to an access to the physical disk; and a performance deterioration judging unit judging performance deterioration of a specific physical disk of the plurality of physical disks, on the basis of the response time of the physical disks and the response time of the specific physical disk.
Claims13
A disk array apparatus including a plurality of physical disks, comprising:
- a response time measuring unit measuring a response time to an access to said physical disk;
- and
- a performance deterioration judging unit judging performance deterioration of a specific physical disk of said plurality of physical disks, on the basis of the response time of said physical disks and the response time of said specific physical disk.
A disk array control method including a plurality of physical disks, comprising:
- a step a) of measuring a response time to an access to said physical disk;
- and
- a step b) of judging performance deterioration of a specific physical disk of said plurality of physical disks on the basis of the response time of said physical disks and the response time of said specific physical disk.
A signal-bearing medium tangibly embodying a program of machine-readable instructions executable by a digital processing apparatus that permits a computer to function as:
- a response time measuring unit measuring a response time to an access to a plurality of physical disks included in a disk array apparatus;
- and
- a performance deterioration judging unit judging performance deterioration of a specific physical disk of said plurality of physical disks on the basis of the response time of said physical disks and the response time of said specific physical disk.
A disk array apparatus including a plurality of physical disks, comprising:
- means for measuring a response time to an access to said physical disks;
- and
- means for judging performance deterioration of a specific physical disk of said plurality of physical disks on the basis of the response time of said physical disks and the response time of said specific physical disk.
Dependencies are inferred from the claim text.