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AssigneeInternational Business Machines Corporation
InventorsNorie Iwasaki, Katsuyoshi Katori, Koichi Masuda, Tomokazu Nakamura, Takeshi Nohta, Joseph M. Swingler
Estimating the term…
In one embodiment, an apparatus includes a processor and logic integrated with and/or executable by the processor configured to cause the processor to receive data to store to a first cluster, store one or more copies of the data to the first cluster, and set a time-delayed copy consistency point time-delayed cops consistency point indicating an amount of time in which data stored to the first cluster is aged prior to being copied from the first cluster to a second cluster. In another embodiment, a method for time-delayed replication includes receiving data to store to a first cluster, storing one or more copies of the data to the first cluster, and setting a time-delayed copy consistency point, the time-delayed copy consistency point indicating an amount of time in which data stored to the first cluster is aged prior to being copied from the first cluster to a second cluster.
An apparatus, comprising a processor and logic integrated with and/or executable by the processor, the logic being configured to cause the processor to:
A method for time-delayed replication, the method comprising;
A computer program product for time-delayed replication, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code being readable and/or executable by a processor to:
Dependencies are inferred from the claim text.
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Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system…:…
File system administration, e.g. details of archiving or snapshots: details of archiving
File system administration, e.g. details of archiving or snapshots: details of migration of file systems
Using management policies: characterised by the use of retention policies
About 7 years 7 months of term left · ends 4 Jun 2034 (estimated)
The present invention relates to data storage, and more particularly, to systems and methods configured to delay replication of data to a data archive for a period of time to enhance performance of data archive systems.
In a multi-cluster environment (e.g., a grid configuration), each cluster is capable of replicating data between sites based on a defined policy to meet each client's or user's established disaster recovery (DR) objective. For example, two clusters may be electronically connected via an Ethernet wide area network (WAN) and asynchronous volume replication to the remote site may be executed which allows status to be surfaced immediately, versus waiting for the replication to complete synchronously.
Each cluster (or site) may utilize a different technology, thus replication to a cluster or site may occur based on the needs of the client or user. For example, a cluster may have a physical tape back store (magnetic or optical) in which data targeting that site is intended to end up on physical tape. This physical tape back store may be intended to be used for long retention based archival data which should end up also particular site or cluster. A grid architecture of a physical tape drive may also support an auto-removal function where aged data (data which has resided on a storage medium for a predetermined amount of time without access thereto) is automatically removed from random access storage configurations (such as disk-only-based storage configurations) after verifying that it has replicated to another cluster or site.
FIG. 1 illustrates a network storage system, according to one embodiment.
FIG. 2 illustrates a simplified tape drive of a tape-based data storage system, according to one embodiment.
FIG. 3 shows a system for replicating data, according to one embodiment.
The following description is made for the purpose of illustrating the general principles of the present invention and is not meant to limit the inventive concepts claimed herein. Further, particular features described herein can be used in combination with other described features in each of the various possible combinations and permutations.
Unless otherwise specifically defined herein, all terms are to be given their broadest possible interpretation including meanings implied from the specification as well as meanings understood by those skilled in the art and/or as defined in dictionaries, treatises, etc.
It must also be noted that, as used in the specification and the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless otherwise specified. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.