Embodiments disclosed herein provide systems, methods, and computer-readable media to implement an object store with removable storage media. In a particular embodiment, a method provides identifying first data for storage on a first removable storage medium and designating at least a portion of the first data to a first data object. The method further provides determining a first location where to store the first data object in a first value store partition of the first removable storage medium and writing the first data object to the first location. Also, the method provides writing a first key that identifies the first data object and indicates the first location to a first key store partition of the first removable storage medium.

An information processing apparatus performs control of recording data in a relatively-new-generation magnetic tape of at least one storage pool among a plurality of storage pools in a case where the same data is recorded in each of the plurality of storage pools each of which includes a plurality of generations of magnetic tapes.

An information processing apparatus performs, in a case where the same data is recorded in each of a plurality of storage pools each of which includes a plurality of generations of magnetic tapes and each for which a priority representing a degree to which a relatively-new-generation magnetic tape is used with priority is set, control of recording data recorded in a relatively-old-generation magnetic tape of a storage pool of which the priority is relatively high, in a relatively-old-generation magnetic tape of a storage pool of which the priority is relatively low.

Embodiments are disclosed for a method. The method includes migrating a file to a newer tape. The file is previously recalled by a linear tape file system (LTFS) from an older tape. The method also includes updating a stub for the file with metadata describing the newer tape, the older tape, and the file. Further, the method includes recalling the file using a tape selected from a plurality of potential tapes identified by the metadata.

A method for utilizing an object storage system (470) for storing and retrieving a volume of data, the volume of data including a plurality of data objects, the method includes the steps of accumulating the volume of data to an ingest area (474) provided within a non-taped-based storage medium; copying a first subset of the plurality of data objects to a first tape medium (472A); and copying a second subset of the plurality of data objects to a second tape medium (472B) that is independent of the first tape medium (472A). The method can further include managing the object storage system (470) with object storage software (476) to perform one or more of (i) generating a first extent parity that contains redundant information from the first subset of the plurality of data objects using erasure coding; and writing the first extent parity to the first tape medium (472A); (ii) generating a second extent parity that contains redundant information from the second subset of the plurality of data objects using erasure coding; and writing the second extent parity to the second tape medium (472B); and (iii) generating a volume parity that contains redundant information from the volume of data using erasure coding; and writing the volume parity to a third tape medium (472C) that is independent of the first tape medium (472A) and the second tape medium (472B).

A method includes, for files in a storage system requested in sequence by an application, identifying a pre-file and identifying a post-file requested after the pre-file. The method also includes incrementing a pre-read count for the pre-file in file attributes associated with the pre-file and incrementing a post-read count for the post-file in file attributes associated with the post-file. The method includes selecting a position in a save list for each file based on the pre-read and post-read counts and saving the files on tape media according to the relative positions of the files in the save list. A computer program product includes one or more computer readable storage media and program instructions collectively stored on the one or more computer readable storage media. The program instructions includes program instructions to perform foregoing method. A system includes a processor and logic configured to perform the foregoing method.

A storage system includes data storage devices, bus conductors, and mobile reader/writer devices. Each of the storage devices is positioned between insulators, is at one of a plurality of locations on one of one or more shelf assemblies, and comprises a processor coupled to a memory and an interface device. One of the bus conductors is adjacent each of the insulators. Each of the reader/writer devices includes a transport apparatus, a processor and a memory. The transport apparatus is configured to move one of the reader/writer devices to one or more of the locations when engaged. The processor is coupled to the transport apparatus and the memory and is configured to execute machine executable code to: engage the transport apparatus to position one of the reader/writer devices to one of the locations in response to a received operation; couple power to one of the storage devices; and execute the operation.

Embodiments disclosed herein provide systems, methods, and computer-readable media to implement an object store with removable storage media. In a particular embodiment, a method provides identifying first data for storage on a first removable storage medium and designating at least a portion of the first data to a first data object. The method further provides determining a first location where to store the first data object in a first value store partition of the first removable storage medium and writing the first data object to the first location. Also, the method provides writing a first key that identifies the first data object and indicates the first location to a first key store partition of the first removable storage medium.

A method, device and non-transitory computer readable medium that manages read access includes organizing a plurality of requests for objects on one or more storage media, such as tapes or spin-down disks, based on at least a deadline for each of the plurality of requests. One of one or more replicas for each of the objects on the one or more storage media is selected based on one or more factors. An initial schedule for read access is generated based at least on the deadline for each of the plurality of requests, the selected one of the replicas for each of the objects, and availability of one or more drives. The initial schedule for read access on the one or more of the drives for each of the plurality of requests for the objects is provided.

A tiered storage arrangement is contemplated that provides high speed tier 1 storage for rapid access to recalled data, mid-speed tier 2 storage for data that is not frequently recalled and tier 3 storage for archive purposes that may include tape library storage and even cold storage in vaults. Embodiments contemplate a server linked to all tiered storage devices on one end and a host computer on another. Data files can be migrated between the tiered storage systems based on migration policies, such as time elapsed from being filed or last accessed. Also, embodiments contemplate a time bar displayed at the host computer that provides accurate time predictions of data recall including information of the kind of storage on which a target file is stored and the pathway to recall the target file/s locally to the host computer.