Distributed and geographically dispersed quorum resource disks
US6782416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Mar 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2071
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A server cluster quorum disk composed of two or more separate, intercommunicating disk drives or LUNs. The disk drives or LUNs that together compose a quorum disk may be physically separated by significant distances to form a geographically dispersed quorum disk, or may be more closely physically associated to form a distributed quorum disk. In either case, the two or more disk drives or LUNs closely cooperate to provide the virtual quorum disk interface identical to that of a single, currently available quorum disk with the exception that, upon failure of a disk LUN component of a distributed or geographically dispersed quorum disk, the distributed or geographically dispersed quorum disk continues to function without interrupting or degrading the server cluster in which the quorum disk is employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.