Managing data storage
US9037793B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and a system for use in managing data storage is disclosed. Data storage is managed in a data storage system comprising a first and a second storage processor and a plurality of data storage devices arranged in a RAID configuration, the first and the second storage processor having respective caches configured to mirror each other. A write I/O is received in the data storage system, wherein the write I/O is an operation for updating data storage in the data storage system. Stripe layout in the plurality of data storage devices in the data storage system is established. It is determined whether the write I/O is at least one full stripe write in response to receiving the write I/O and establishing stripe layout. The at least one full stripe write bypasses cache and is delivered to the plurality of data storage devices in the data storage system in response to determining the write I/O is at least one full stripe write.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.