Storage apparatus, method of controlling storage apparatus, and computer-readable recording medium having stored therein storage apparatus control program
US9582200B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Apr 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.