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:
Sep. 28, 2010
Filed:
Apr. 23, 2003
Stephen J. Todd, Shrewsbury, MA (US);
Steven M. Blumenau, Holliston, MA (US);
Zoran Cakeljic, Newton, MA (US);
Donagh Buckley, Banteer, IE;
Conor Fox, Co. Cork, IE;
John Philip Bell, Ii, Clonakilty, IE;
Stephen J. Todd, Shrewsbury, MA (US);
Steven M. Blumenau, Holliston, MA (US);
Zoran Cakeljic, Newton, MA (US);
Donagh Buckley, Banteer, IE;
Conor Fox, Co. Cork, IE;
John Philip Bell, II, Clonakilty, IE;
EMC Corporation, Hopkinton, MA (US);
Abstract
Methods and apparatus for performing a data migration in a clustered computer system. In one aspect, the availability of the data being migrated is maintained during the migration. In another aspect, a data set is migrated by a transfer utility in one of the hosts in the cluster, and in response to a failure of the host, the migration is resumed without restarting from the beginning point of the data set. In a further embodiment, the hosts in the cluster have agents associated therewith to manage the data migration, and prior to taking at least one action associated with the data migration, the agents coordinate to ensure that the hosts in the cluster are prepared to have the at least one action taken.