Invention Grant
- Patent Title: Asymmetric data mirroring
- Patent Title (中): 不对称数据镜像
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Application No.: US13077370Application Date: 2011-03-31
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Publication No.: US08443229B2Publication Date: 2013-05-14
- Inventor: James A. Gardner , Darrell G. Freeman
- Applicant: James A. Gardner , Darrell G. Freeman
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
An asymmetric data mirroring method with a local storage device and a remote storage device being separated by large distances is disclosed. A server determines a predetermined time period associated with a round trip latency between the server and a remote storage device. The server submits a request to a local storage device, a remote storage device and a memory device disposed between the server and the remote storage device. The server submits additional requests to the local and remote storage devices during the predetermined time period. The server stores a copy of each request submitted by the server to the remote storage device in a memory disposed between the server and the remote storage device while the server waits for whether an acknowledgement associated with the request has been received from the remote storage device during the predetermined time period. The server resubmits the request and the additional requests to the remote storage device if the acknowledgement is not received. If an acknowledgement is received, the server continues submission of additional new requests to the local and remote storage devices.
Public/Granted literature
- US20110179243A1 Asymmetric Data Mirroring Public/Granted day:2011-07-21
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