Storage system and operation method of a storage system
US8775735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2012 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Sep 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system includes a redundant array of independent disks (RAID), a file subsystem, and a multiple device control unit. The RAID includes a plurality of disks and a bitmap. The file subsystem is used for executing a write command and a trim command. The multiple device control unit does not execute a first synchronization operation on the plurality of disks during the RAID is built, does not execute a second synchronization operation on expansion capacity of the plurality of disks during the RAID is expanded, executes a third synchronization operation on at least one added disk according to the blocks of the plurality of disks occupied by the data during the RAID is reshaped, and/or executes a corresponding operation on at least one added disk according to the blocks of the plurality of disks occupied by the data during the RAID is recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.