Tightly coupled secondary storage system and file system
US6571351B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2000 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fault tolerant, secondary storage engine (such as a RAID engine) is closely coupled with a file system to achieve greater overall throughput in storage/database applications having a mix of large, sequential access transactions and small, random access transactions. In addition, disk rebuild time may be greatly reduced using such an embodiment. A logical storage space representing a storage area in a set of non-volatile storage devices is divided into nonoverlapping storage allocation units (SAUs) such as stripes, each SAU to overlay all of the devices in the set. Different fault tolerant storage methodologies (FTSMs) are assigned to access (i.e. read/write) data in the different SAUs, respectively. An access is made to an SAU in the set responsive to an input storage request of a first or second type, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.