Managing a cache in a multi-node virtual tape controller
US9372801B2 · kind B2 · utility
2Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2015 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method according to one embodiment includes outputting a first alert when a cache free space size is less than a first threshold and entering into a warning state, and outputting a second alert when the cache free space size is less than a second threshold and entering into a critical state. At least one scratch volume is deleted when in the critical state, the scratch volume chosen based on at least one of: a length of time the scratch volume has been designated scratch, a priority level of the information stored on the scratch volume, and a scratch delay value associated with the scratch volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.