Locking a non-busy device for accessing a data record stored on another device
US5493724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1993 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Apr 1, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for improving storage controller throughput when servicing non-specific read requests. Throughput is increased by enabling the storage controller to service non-specific read requests issued against a device address which is not the same as the device address associated with the data that the non-specific read is requesting. The device address associated with the data is thus free to be used for another I/O operation. When the device address used by the non-specific read is a non-busy type (that is, the device and/or data is not locked) then the throughput improvement is obtained by increasing the number of data requests that may be concurrently handled by the storage controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.