09460028 is referenced by 24 patents and cites 15 patents.

Data migration is performed in a cluster of host computers each using a mechanism associating data with a source LUN. During a synchronization operation the contents of the source LUN are copied to the target LUN while ongoing normal source LUN writes are cloned to the target LUN. A datapath component of an agent coordinates the writes at the target LUN to maintain data consistency. Upon completion of synchronization, each host stops the write cloning and disables access to the source LUN, in conjunction with a modification of the mechanism to newly associate the data with the target LUN. Depending on the type of mechanism and system, the modification may be done either disruptively or non-disruptively, i.e., with or without stopping normal operation of software of the host computers.

Title
Non-disruptive and minimally disruptive data migration in active-active clusters
Application Number
13/727884
Publication Number
9460028 (B1)
Application Date
December 27, 2012
Publication Date
October 4, 2016
Inventor
Assaf Natanzon
Tel Aviv
IL
Helen S Raizen
Jamaica Plain
MA, US
Agent
BainwoodHuang
Assignee
EMC Corporation
MA, US
IPC
G06F 12/16
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