Title:
DATA REPLICATION IN DATA STORAGE SYSTEMS
Document Type and Number:
WIPO Patent Application WO2005045606
Kind Code:
A3
Abstract:
The present invention relates to system and method of asynchronous data replication (Figure 1). In an embodiment, the system includes a primary host (10) that asynchronously transmits write and sync commands where each write and sync command includes a data set ID and a sequence number. A secondary host (11) coupled to the primary host receives the write and sync commands out of order, tracks receipt of write and sync commands, and after receipt of the write and sync commands of the data set writes blocks associated with the write commands to data storage coupled to the secondary host.
Inventors:
BURTON DAVID ALAN (US)
OTTERNESS NOEL SIMEN (US)
SHOENS KURT ALAN (US)
OTTERNESS NOEL SIMEN (US)
SHOENS KURT ALAN (US)
Application Number:
PCT/US2004/033768
Publication Date:
May 11, 2006
Filing Date:
October 12, 2004
Export Citation:
Assignee:
PILLAR DATA SYSTEMS INC (US)
BURTON DAVID ALAN (US)
OTTERNESS NOEL SIMEN (US)
SHOENS KURT ALAN (US)
BURTON DAVID ALAN (US)
OTTERNESS NOEL SIMEN (US)
SHOENS KURT ALAN (US)
International Classes:
G06F17/30; G06F12/16; G06F
Foreign References:
| US6772178B2 | 2004-08-03 | |||
| US5689706A | 1997-11-18 |
Other References:
See also references of EP 1683052A4
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