Handling eject requests of logical volumes in a data storage subsystem
US6247096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1998 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Nov 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of handling eject requests of logical volumes received by a data storage subsystem from a host system. The method, implemented in computer readable program code, first places identified logical volumes in scratch categories. An eject request is received from a host system, to eject a logical volume from the data storage subsystem. The method responds to the eject request to determine whether the requested logical volume is in a scratch category; if the requested logical volume is determined as to be in a scratch category, a virtual media server is notified that the requested logical volume is deletable, and the virtual media server determines from its database whether the status of the requested logical volume allows deletion thereof. If the virtual media server status determining step allows deletion of the requested logical volume, the requested logical volume is deleted from both the virtual media server database and the library manager database. Then, the requesting host system is notified of the deletion of the requested logical volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.