Invention Grant
- Patent Title: Storage apparatus, method of controlling storage apparatus, and computer-readable recording medium having stored therein storage apparatus control program
- Patent Title (中): 存储装置，控制存储装置的方法以及存储有存储装置控制程序的计算机可读记录介质
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Application No.: US14493441Application Date: 2014-09-23
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Publication No.: US09582200B2Publication Date: 2017-02-28
- Inventor: Joichi Bita
- Applicant: FUJITSU LIMITED
- Applicant Address: JP Kawasaki
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Priority: JP2013-222060 20131025
- Main IPC: G06F3/06
- IPC: G06F3/06
Abstract:
A storage apparatus includes a processor. The processor calculates an upper limit of an input/output processing amount, which is determined based on priority levels set to a plurality of storage devices, for each storage device. The processor schedules an execution sequence of processes relating to input/output requests received from information processing apparatuses based on processing amounts relating to the input/output requests and the upper limits. The processor executes the processes relating to the input/output requests in the scheduled execution sequence. The processor is configured to determine, for each storage device, whether or not a processing amount of the storage device exceeds a processing bandwidth of the each storage device for a first predetermined time. The processor changes the upper limit for each storage device in a predetermined bandwidth accommodation unit in a case where the processing amount for each storage device is determined to exceed the processing bandwidth.
Public/Granted literature
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