Raid array transformation in a pooled storage system
US8677066B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Dec 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes reserving extents in a storage pool, reading data from a first portion of an in-use RAID arranged according to a first array configuration, using the reserved extents in the storage pool to store a first portion of the data for writing to the in-use RAID, using one or more free extents in the storage pool or in the in-use RAID to store a second portion of the data for writing to the in-use RAID, writing the data to a second portion of the in-use RAID arranged according to a second array configuration, performing one or more first I/O operations according to the first array configuration, wherein the one or more first I/O operations are performed on the data before the data is read by the data migrating component, and performing one or more second I/O operations according to the second array configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.