System for maintaining coherency during offline changes to storage media
US8417895B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Apr 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1095
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A proxy device monitors memory access operations between clients and a storage media. The proxy device stores at least some of the data from the storage media in a faster tiering media and provides the data from the faster tiering media to the clients for certain associated memory access operations. The proxy is also configured to monitor Small Computer System Interface (SCSI) communications between the clients and the storage media and invalidate at least some data in the tiering media when particular SCSI messages in the SCSI communications indicate the tiering media contains data that is out of sync with the data in the storage media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.