Storage apparatus, controller, and method for allocating storage area in storage apparatus
US8601312B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2011 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Jan 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage apparatus for storing data includes a plurality of physical media provided with storage areas to store data, a storage group determining unit configured to determine, upon detecting a request to write new data to a virtual volume to be accessed, a storage group from which to allocate storage area by selecting a storage group from among a plurality of storage groups made up of the plurality of physical media, wherein the selected storage group is other than any storage groups that include a physical medium where a failure has occurred, and a storage area allocator configured to allocate storage area on the physical media existing within the storage group that was determined by the storage group determining unit to the virtual volume, the size of the storage area corresponds to the data size of the new data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.