ISCSI block cache and synchronization technique for WAN edge device
US7389382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Jun 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/264
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique is described for facilitating block level access operations to be performed at a remote volume via a wide area network (WAN). The block level access operations may be initiated by at least one host which is a member of a local area network (LAN). The LAN includes a block cache mechanism configured or designed to cache block data in accordance with a block level protocol. A block level access request is received from a host on the LAN. In response to the block level access request, a portion of block data may be cached in the block cache mechanism using a block level protocol. In at least one implementation, portions of block data in the block cache mechanism may be identified as “dirty” data which has not yet been stored in the remote volume. Block level write operations may be performed over the WAN to cause the identified dirty data in the block cache mechanism to be stored at the remote volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.