Disk array subsystem with self-reallocation of logical volumes for reduction of I/O processing loads
US5905995A · kind A · utility
30Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1996 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Aug 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk array subsystem includes a logical volume allocation controller, which divides and reallocates data of the same logical volume LVN among a plurality of magnetic disk drive groups when a magnetic disk group is added thereto. Successful logical-volume allocation can reduce the I/O processing frequency between magnetic disk drive groups, thus achieving enhanced performance of the disk array subsystem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.