Disk array apparatus, computer-readable recording medium having disk array apparatus control program recorded thereon, and disk array apparatus control method
AssigneeFujitsu Limited
InventorsMasahiro Yoshida, Yasuhito Arikawa
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Abstract
A disk array apparatus has a plurality of disks constituting a mounted RAID group and controls access from an upper-level device to each of the disks. The disk array apparatus also has a performance information collector for collecting a piece of performance-related information of each of the disks, and a suspected disk detector for comparing the pieces of information collected for the disks by the performance information collector among disks constituting a single one of the RAID group and detecting a suspected disk suspected of being abnormal in performance based on a result of the comparison.
Claims11
A disk array apparatus which has a plurality of disks constituting a mounted RAID group and controls access from an upper-level device to each of the disks, comprising:
- a performance information collector collecting a piece of performance-related information of each of the disks;
- and
- a suspected disk detector comparing the pieces of information collected for the disks by the performance information collector among disks constituting a single one of the RAID group and detecting a suspected disk suspected of being abnormal in performance based on a result of the comparison.
A computer-readable recording medium storing a disk array apparatus control program for causing a disk array apparatus as a computer to perform a method for mounting a plurality of disks constituting a RAID group and controlling access from an upper-level device to each of the disks, the disk array apparatus control program causing the computer to perform:
- a performance information collection procedure for collecting a piece of performance-related information of each of the disks;
- and
- a suspected disk detection procedure for comparing the pieces of information collected for the disks by the performance information collection procedure among disks constituting a single one of the RAID group and detecting a suspected disk suspected of being abnormal in performance based on a result of the comparison.
A disk array apparatus control method for mounting a plurality of disks constituting a RAID group and controlling access from an upper-level device to each of the disks, comprising:
- collecting a piece of performance-related information of each of the disks;
- and
- comparing the pieces of information collected for the disks among disks constituting a single one of the RAID group and detecting a suspected disk suspected of being abnormal in performance based on a result of the comparison.
Dependencies are inferred from the claim text.