(i9) United States
(12) Patent Application Publication
Hudis et al.
(54) SYSTEMS AND METHODS FOR
SYNCHRONIZATION OF ITEMS WITHOUT
(75) Inventors: Irena Hudis, Bellevue, WA (US); Lev
Novik, Bellevue, WA (US); Rajesh M.
Rao, Sammamish, WA (US); Sameet
H. Agarwal, Redmond, WA (US);
Vivek Jawahir Jhaveri, Seattle, WA
WOODCOCK WASHBURN LLP
ONE LIBERTY PLACE - 46TH FLOOR
PHILADELPHIA, PA 19103 (US)
(73) Assignee: Microsoft Corporation, Redmond, WA
(21) Appl. No.: 11/025,165
(22) Filed: Dec. 20, 2004
Various embodiments of the present invention are directed to systems and methods for synchronizing mixed elements (MEs) comprising structure data and unstructured filestreams between peer computer systems in a hardware/ software interface system environment that does not permit snapshotting of large unstructured ME filestreams during synchronization. For several such embodiments, the method comprises synchronizing the ME in two steps, one for snapshotting the structured data component of the ME (as well as the cv of the filestream but not the filestream itself) and one for locking and transmitting the filestream to the receiving sync peer if and only if, after being locked, it is determined that the filestream is unchanged from the time of the ME data component snapshot.