Abstract:
A storage system comprises: a controller; a memory; one or more objects, each object having content data and metadata which includes system metadata; and a policy which governs writing of the content data and metadata of the one or more objects from the storage system to an external storage. The policy includes a configurable criterion for decoupling of the content data and the metadata of a given object and a rule for determining storage locations for the content data and the metadata between the storage system and the external storage in a decoupled manner if the content data and the metadata of the object are decoupled. The configurable criterion is based on an attribute of the metadata of the object. The controller is operable to execute the policy against the objects and to apply the rule to determine storage locations for the content data and metadata of a decoupled object.
Abstract:
A storage system stores objects and copies of objects on the storage system and other storage systems external to the storage system. The storage system stores the copies in storage pools of volumes, which are organized into one or more tiers. The configuration settings of each tier and each pool within the tier may be configured according to a user's preferences. In one example, the number of copies of data content and the number copies of metadata associated with the data content an individual pool stores may be specified. When objects are migrated between tiers, the objects are stored among the storage pools of the tiers. If the number of data content copies or metadata copies is increased, the data or metadata is copied from a determined copy source and if the number of copies decreases, the data is removed from the volumes in the pools.
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.
Abstract:
A storage system comprises a controller; a memory; and one or more objects each including content data and metadata. The metadata is used to construct user-defined content properties, each content property providing an ability to extract a specific metadata field from the objects by referring to a user-defined content property name of the content property. The content properties are organized into user-defined content classes, each content class grouping a set of content properties into a named category under a user-defined content class name. The controller is operable to index the content properties of the content classes to create an index. The content properties being indexed are identified by the content property names. In some embodiments, the controller is operable to de-dupe the index, for content properties having same values expressed differently in different metadata formats, by directing the differently expressed values to same index field under same content property name.
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. The systems have one or more replication links each being formed to indicate replication of data from one system to another system in a replicated environment where each system is configured as a sub-domain in a Domain Name System (DNS) infrastructure. A DNS alias synchronization method comprises maintaining updated information, within each system, of all replication links involving that system and of DNS aliases of other systems associated with all replication links involving that system (S602-S607). This enables that system to process network-based requests, on behalf of the other systems, without redirecting the requests from the other systems to that system.
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. The systems have one or more replication links each being formed to indicate replication of data from one system to another system in a replicated environment where each system is configured as a sub-domain in a Domain Name System (DNS) infrastructure. A DNS alias synchronization method comprises maintaining updated information, within each system, of all replication links involving that system and of DNS aliases of other systems associated with all replication links involving that system (S602-S607). This enables that system to process network-based requests, on behalf of the other systems, without redirecting the requests from the other systems to that system.
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.