The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2014
Filed:
Sep. 29, 2010
Adam M. Phelps, San Francisco, CA (US);
Richard T. Dalzell, Belfast, GB;
Hariprasad Mankude Bhasker Rao, San Ramon, CA (US);
Adam M. Phelps, San Francisco, CA (US);
Richard T. Dalzell, Belfast, GB;
Hariprasad Mankude Bhasker Rao, San Ramon, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A host write based write ordering mechanism is used so the write ordering on the secondary system is derived from the write ordering applied by the host to the primary system. In this scheme any set of writes that was issued in parallel on the primary system may also be issued in parallel on the secondary system. The parallel writes provide better performance compared to absolute or strict write ordering allowing only one outstanding write per volume group.