US 8,914,671 B2Granted

Multiple hyperswap replication sessions

AssigneeInternational Business Machines Corporation

InventorsWilliam J. Rooney, Peter G. Sutton

Life of this patent

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Abstract

A method includes monitoring a plurality of HyperSwap sessions between one or more storage systems located at a first location and one or more storage systems located at a second location, wherein at least one of the one or more storage systems located at the first location and at the second location are designated as a primary storage system. The method includes detecting an error event and freezing communications between the storage systems located at the first location and the second location in response to the error event. The method also includes designating either the first location or the second location as a preferred location and modifying the designation of all of storage systems at the preferred location to be primary storage systems in response to the error event.

Claims7

Dependent claims

A method comprising:

monitoring a plurality of HyperSwap sessions between one or more storage systems located at a first location and one or more storage systems located at a second location, wherein at least one of the one or more storage systems located at the first location and at the second location are designated as a primary storage system, wherein at least one of the one or more storage systems located at the first location and at the second location are designated as a secondary storage system, and wherein either the first location or the second location are designated as a preferred location;
detecting an error event;
freezing communications between the one or more storage systems located at the first location and the one or more storage systems located at the second location in response to the error event;
and
modifying the designation of all of the one or more storage systems at the preferred location to be primary storage systems in response to the error event.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/783,428Filed 4 Mar 2013 · continuation
Priority: 12 Jul 2012
Published: US 2014/0019801 A116 Jan 2014
Granted: 16 Dec 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G06F 11/2092
Redundant storage control functionality: techniques of failing over between control units
G06F 11/2094
Where persistent mass storage functionality or persistent mass storage control functionality is redundant: redundant storage or storage space
G06F
Computing and data processing

Family

Application13/547,564Parent of this continuation · filed 12 Jul 2012
US 2014/0019802 A1Pre-grant publication · published 16 Jan 2014
US 2014/0019801 A1Published application
US 8,909,985 B2Related patent
US 8,914,671 B2This patent

From the US filing history. Foreign family members aren’t listed.