System and method for inquiry caching in a storage area network
US8543643B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 7, 2011 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Aug 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/2895
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for servicing an inquiry command from a host device requesting inquiry data about a sequential device on a storage area network. The inquiry data may be cached by a circuitry coupled to the host device and the sequential device. The circuitry may reside in a router. In some embodiments, depending upon whether the sequential device is available to process the inquiry command, the circuitry may forward the inquiry command to the sequential device or process the inquiry command itself, utilizing a cached version of the inquiry data. The cached version may include information indicating that the sequential device is not available. In some embodiments, regardless whether the sequential device is available, the circuitry may process the inquiry command and return the inquiry data from a cache memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.