International Business Machines Corporation

Erick Christian Kissel

David Maxwell Cannon

Howard Newton Martin

Matthew Joseph Anglin

Colin Scott Dawson

Michael Harry Segapeli

Ken Eugene Hannigan

Kevin Patrick Hoyt

Kai Alan Gahn Asher

Kristopher A Larson

Barry Fruchtman

Jonathan Mark Haswell

Neeta Garimella

Christian Bolik

Toby Lyn Marek

David Michael Morton

Jayashree Ramanathan

William John Scheid, Iii

Yu-mei Una Hsiao

Zhiguo Huang

Matthew Joseph Angtin

Provided are a computer program product, system, and method for replication of versions of an object from a source storage to a target storage. A source retention policy indicates at least one source retention requirement to determine when to expire versions of an object at the source storage and a target retention policy indicates at least one target retention requirement to determine when to expire versions of the object at the target storage. The source and target retention requirements for versions of the object are different. The source retention policy is used to expire at least one version of the object at the source storage to satisfy the at least one source retention requirement. A number of the versions of the object maintained at the source storage and target storage differ due to the different source and target retention requirements.

Replication of versions of an object from a source storage to a target storage

Provided are techniques for managing backup operations from a client system to a primary server and secondary server. A determination is made at the client system of whether a state of the data on the secondary server permits a backup operation in response to determining that the primary server is unavailable when a force failover parameter is not set. The client system reattempts to connect to the primary server to perform the backup operation at the primary server in response to determining that the state of the data on the secondary server does not permit the backup operation. The client system performs the backup operation at the secondary server in response to determining that the state of the secondary server permits the backup operation.

Managing backup operations from a client system to a primary server and secondary server

Systems and methods for retrieving data from a storage system having a plurality of storage pools are provided. The method comprises processing configurable data retrieval instructions to determine a first storage pool from which target backup data is to be retrieved, in response to a data restore request; and retrieving the target backup data from the first storage pool to satisfy the restore request. The configurable data retrieval instructions are managed by a source external to the storage system with administrative authority to change the configurable data retrieval instructions to optimize data restoration from the storage system.

Data recovery in a hierarchical data storage system

One disclosed aspect of the present invention includes authentication and user account automation within a compute cluster for each cluster node that requires password or other credential administration. For example, a storage appliance computing system may rely on a plurality of subsystems (such as databases, storage management software, and application servers) that each have internal user accounts with associated passwords and credential keys that need to be changed at frequent intervals. Rather than requiring an administrator to manually manage all of these accounts, the presently described invention includes techniques and an authentication manager component to automatically manage, update, and refresh authentication information as required. Further, the authentication manager component may be used to perform and propagate automatic credential changes such as new sets of SSH keys or updated passwords as required within a computing system, and respond to new nodes or out-of-sync credentialing scenarios.

Automated management of system credentials

Provided are a method, system, and article of manufacture wherein a set of communication paths between a plurality of data movers and a plurality of storage devices is maintained. A request to transfer data from a source storage device to a target storage device is received, wherein the source storage device and the target storage device are included in the plurality of storage devices. At least one data mover from the plurality of data movers is selected based on the set of communication paths, wherein the selected at least one data mover can transfer the data from the source storage device to the target storage device.

Selection of data mover for data transfer

Provided are a method, system, and article of manufacture for managing encryption for volumes in storage pools. At least one storage pool is defined in a database, wherein storage pools are defined to include a plurality of data volumes, wherein each volume is included in at least one storage media. An encryption status is indicated for storage pools indicating whether encryption is enabled for the storage pool. An encryption key is provided for volumes included in storage pools for which encryption is indicated as enabled. The encryption keys for volumes included in the storage pools for which encryption is enabled are stored. The database associates the encryption keys with the volumes and the volumes with the storage pools.

Managing encryption for volumes in storage pools

An apparatus, system, and method are disclosed for data access management on a storage device connected to a storage area network. A client includes network connections to a first and second network, where the second network comprises a storage area network (SAN). The client also includes a storage management client and a storage agent. The storage agent is configured to minimize the amount of metadata processing that occurs on the client by sending the metadata or a copy thereof to a storage server to be stored in a centralized metadata database. The storage server also includes a storage manager that is configured to manage data access by the storage agent to the requested storage device.

Apparatus, system, and method for data access management

Provided is a method for transferring data among a logical layer, physical layer, and storage device. The logical layer allocates a buffer to use to write data to a storage device. The physical layer manages access to the storage device. The logical layer determines an offset into the buffer based on a length of a physical header written by the physical layer and writes data to the buffer from the determined offset. The physical layer writes physical header information, wherein the physical header information does not extend past the offset in the buffer. The physical layer transfers content from the buffer to the storage device.

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Tucson, AZ, United States of America

Erick Christian Kissel