US 9,754,003 B2Granted

System and method for optimizing protection levels when replicating data in an object storage system

AssigneeHitachi Data Systems Corporation

InventorsRichard Rogers, Benjamin Isherwood, Matthew Michael McDonald, Donald P. Pannese, David Pinkney

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Abstract

A redundant array of independent nodes are networked together. Each node executes an instance of an application that provides object-based storage. The nodes are grouped into a plurality of systems each having multiple nodes. A data protection level method comprises setting a numerical value of a system dynamic data protection level for each system of nodes; and in response to user input, setting a value of a data protection level for one or more data objects in a system, the value being a fixed numerical value or a dynamic value. If the one or more data objects have a dynamic value of the data protection level in a system, the one or more data objects inherit the system dynamic data protection level of the system in which the one or more data objects reside. The value of the data protection level represents a number of copies of data of the one or more data objects to be kept where the one or more data objects reside.

Claims24

Dependent claims

A system comprising:

a first storage system being configured to:
manage a first namespace with a fixed data protection level and a second namespace with a dynamic data protection level;
store one or more copies of first data in the first namespace, wherein a number of the one or more copies of the first data is determined by the fixed data protection level;
and
store one or more copies of second data in the second namespace, wherein a number of the one or more copies of the second data is determined by a first default data protection level of the first storage system;
and
replicate the first namespace and the second namespace from the first storage system to a second storage system, wherein the second storage system is configured to:
store the same number of the one or more copies of the first data stored in a replicated first namespace of the second storage system;
and
store a different number of the one or more copies of the second data stored in a replicated second namespace of the second storage system than the number of the one or more copies of the second data stored in the first storage system based on a second default data protection level of the second storage system.

7 more elements

A system comprising:

a first storage system being configured to manage a first namespace with a fixed data protection level and a second namespace with a dynamic data protection level, store one or more copies of first data in the first namespace, wherein a number of the one or more copies of the first data is determined by the fixed data protection level of the first storage system, and store one or more copies of second data in the second namespace, wherein a number of the one or more copies of the second data is determined by a first dynamic data protection level of the first storage system;
and
a second storage system, upon performing replication from the first storage system to the second storage system, being configured to store the same number of the one or more copies of the first data in a replicated first namespace of the second storage system as the number of the one or more copies of the first data stored in the first storage system, and store a different number of the one or more copies of the second data in a replicated second namespace of the second storage system than the number of the one or more copies of the second data stored in the first storage system based on a second default data protection level of the second storage system.

A method comprising:

managing, by a first storage system a first namespace with a fixed data protection level and a second namespace with a dynamic data protection level;
storing one or more copies of first data in the first namespace, wherein a number of the one or more copies of the first data is determined by the fixed data protection level;
storing one or more copies of second data in the second namespace, wherein a number of the one or more copies of the second data is determined by a first default data protection level of the first storage system;
and
replicating the first namespace and the second namespace from the first storage system to a second storage system, and during replication, storing the same number of the one or more copies of the first data stored in a replicated first namespace of the second storage system, and storing a different number of one or more copies of the second data stored in a replicated second namespace of the second storage system than the number of the one or more copies of the second data stored in the first storage system based on a second default data protection level of the second storage system.

2 more elements

A method comprising:

managing, by a first storage system, a first namespace with a fixed data protection level and a second namespace with a dynamic data protection level, and storing one or more copies of first data in the first namespace and one or more copies of second data in the second namespace, wherein a number of the one or more copies of the first data is determined by the fixed data protection level of the first storage system, and wherein a number of the one or more copies of the second data is determined by a first default data protection level of the first storage system;
performing replication of the namespace from the first storage system to a second storage system;
and
during replication, storing a same number of the one or more copies of the first data stored in a replicated first namespace of a second storage system as the number of the one or more copies of the first data stored in the first storage system and a different number of the one or more copies of the second data stored in a replicated second namespace of the second storage system than the number of the one or more copies of the second data stored in the first storage system based on a second default data protection level of the second storage system.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/856,694Filed 17 Sep 2015 · continuation
Priority: 24 Sep 2010
Published: US 2016/0004760 A17 Jan 2016
Granted: 5 Sep 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06F 16/278
Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system…: data…
G06F 3/0619
Improving the reliability of storage systems: in relation to data integrity, e.g. data losses, bit errors
G06F 3/065
Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems: replication mechanisms
G06F 3/067
Adopting a particular infrastructure: distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]

Family

Application12/889,698Parent of this continuation · filed 24 Sep 2010
Application14/189,431Parent of this continuation · filed 25 Feb 2014
US 8,700,571 B2Parent of this continuation · filed 15 Apr 2014
US 2016/0004760 A1Pre-grant publication · published 7 Jan 2016
US 9,146,689 B2Parent of this continuation
US 2012/0079424 A1Published application
US 2014/0181446 A1Published application
US 9,754,003 B2This patent

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