Method and apparatus for the on-line reconfiguration of the logical volumes of a data storage system
US6209059A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1997 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Sep 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of dynamically reconfiguring the logical devices in a storage system is provided. The method allows a logical devices to be added, removed, or repositioned without requiring the storage system to be taken off-line. The method includes manipulating the request queues associated with host controllers within the storage system. The request queues associated with each logical device may be repositioned in the request queue memory in order to make room for new logical devices or to take advantage of free space associated with a removed logical device. The storage system communicates with the host computer in order to manage the reconfiguration of the request queues while still providing storage services to the host computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.