Systems for managing a cache in a multi-node virtual tape controller
US8856450B2 · kind B2 · utility
4Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Nov 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a system includes a virtual tape library having a cache, a virtual tape controller (VTC) coupled to the virtual tape library, and an interface for coupling at least one host to the VTC. The cache is shared by all the hosts, and a common view of a cache state, a virtual library state, and a number of write requests pending is provided to all the hosts by the VTC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.