System and method for storing and retrieving objects across multiple media

    公开(公告)号:US12099754B2

    公开(公告)日:2024-09-24

    申请号:US17960561

    申请日:2022-10-05

    IPC分类号: G06F3/06 G06F11/10

    摘要: 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).

    SYSTEM AND METHOD FOR PROTECTING DATA IN A BACK-UP APPLIANCE USING SHALLOW METADATA COPYING

    公开(公告)号:US20230306005A1

    公开(公告)日:2023-09-28

    申请号:US18125047

    申请日:2023-03-22

    IPC分类号: G06F16/215 G06F16/2457

    CPC分类号: G06F16/215 G06F16/24573

    摘要: A method for protecting data within a storage system includes receiving one or more user objects from a user into the storage system, the user objects including user data that includes user metadata and raw data; deduplicating the raw data; copying the user metadata and system metadata to provide copied metadata; and storing the copied metadata in a metadata storage area within the storage system so that the copied metadata stored in the metadata storage area is not modifiable by the user. The method can further include storing the copied metadata in a separate, second metadata storage area within the storage system that is user modifiable. At least a portion of the copied metadata stored in the user modifiable metadata storage area and copied to the unmodifiable metadata storage area includes a reference that points to sub-objects in the data storage area that allows the system to rehydrate the raw data for the user objects.

    Partitioned data-based TDS compensation using joint temporary encoding and environmental controls

    公开(公告)号:US11688426B2

    公开(公告)日:2023-06-27

    申请号:US17839480

    申请日:2022-06-14

    IPC分类号: G11B20/18 G11B5/55 G11B5/024

    摘要: A method for providing enhanced readability of data written to a magnetic tape, includes the steps of (i) writing data to a first tape partition using a tape drive, the data being written under a first dimensional stability condition; (ii) monitoring an ambient dimensional stability condition with a condition monitor to determine if the ambient dimensional stability condition has moved at least a predetermined threshold value from the first dimensional stability condition toward a preferred dimensional stability condition; and (iii) replicating the data to a second tape partition with a data replicator when it has been determined that the ambient dimensional stability condition has moved at least the predetermined threshold value from the first dimensional stability condition toward the preferred dimensional stability condition.

    Large form factor extended tape path magnetic tape storage device

    公开(公告)号:US11676635B1

    公开(公告)日:2023-06-13

    申请号:US17356480

    申请日:2021-06-23

    IPC分类号: G11B15/68 G11B23/023

    CPC分类号: G11B15/6835 G11B23/0236

    摘要: A tape library having a robot zone and a robot on the robot zone, movable in the robot zone of the tape rack in at least a first direction and a second direction. A tape drive, which has an opening to receive cartridges, is positioned so that the robot nears the tape drive when the robot moves in a second direction. A width of the tape drive is wider than a width of the robot zone. This tape drive design is called the “Sideways Format Path for 19″ Rack Libraries.” It is achieved by using unique dimensions for a new tape drive that uses blind spaces existing in tape libraries unreachable by the robot to provide a bigger space to design longer tape paths, resulting in higher cartridge density with longer tape path without requiring bigger overall library dimensions for a library of tape cartridges.

    High-precision servo system for advanced magnetic tape storage system

    公开(公告)号:US11605399B2

    公开(公告)日:2023-03-14

    申请号:US17683099

    申请日:2022-02-28

    IPC分类号: G11B5/592 G11B5/024

    摘要: A servo system for a magnetic tape storage system includes a magnetic tape (550) including a first servo band (573), and a first data band (575). An auxiliary servo pattern (575A) is embedded within the first data band (575). The auxiliary servo pattern (575A) is modified to generate an updated auxiliary servo pattern (688A) during a writing pass as data is being written to the first data band (575). The servo system can further include a magnetic tape drive (326) including a head assembly (456) having (i) a first write head (482) that writes data to the magnetic tape (550) as the magnetic tape (550) moves relative to the head assembly (456) in a first tape direction, (ii) a second write head (484) that writes data to the magnetic tape (550) as the magnetic tape (550) moves relative to the head assembly (456) in a second, opposite tape direction, and (iii) an auxiliary servo reader (487) positioned in a shadow of one of the first write head (482) and the second write head (484).

    HIGH-PRECISION SERVO SYSTEM FOR ADVANCED MAGNETIC TAPE STORAGE SYSTEM

    公开(公告)号:US20230033978A1

    公开(公告)日:2023-02-02

    申请号:US17683099

    申请日:2022-02-28

    IPC分类号: G11B5/592 G11B5/024

    摘要: A servo system for a magnetic tape storage system includes a magnetic tape (550) including a first servo band (573), and a first data band (575). An auxiliary servo pattern (575A) is embedded within the first data band (575). The auxiliary servo pattern (575A) is modified to generate an updated auxiliary servo pattern (688A) during a writing pass as data is being written to the first data band (575). The servo system can further include a magnetic tape drive (326) including a head assembly (456) having (i) a first write head (482) that writes data to the magnetic tape (550) as the magnetic tape (550) moves relative to the head assembly (456) in a first tape direction, (ii) a second write head (484) that writes data to the magnetic tape (550) as the magnetic tape (550) moves relative to the head assembly (456) in a second, opposite tape direction, and (iii) an auxiliary servo reader (487) positioned in a shadow of one of the first write head (482) and the second write head (484).

    PARTITIONED DATA-BASED TDS COMPENSATION USING JOINT TEMPORARY ENCODING AND ENVIRONMENTAL CONTROLS

    公开(公告)号:US20220415357A1

    公开(公告)日:2022-12-29

    申请号:US17839480

    申请日:2022-06-14

    IPC分类号: G11B20/18 G11B5/024 G11B5/55

    摘要: A method for providing enhanced readability of data written to a magnetic tape, includes the steps of (i) writing data to a first tape partition using a tape drive, the data being written under a first dimensional stability condition; (ii) monitoring an ambient dimensional stability condition with a condition monitor to determine if the ambient dimensional stability condition has moved at least a predetermined threshold value from the first dimensional stability condition toward a preferred dimensional stability condition; and (iii) replicating the data to a second tape partition with a data replicator when it has been determined that the ambient dimensional stability condition has moved at least the predetermined threshold value from the first dimensional stability condition toward the preferred dimensional stability condition.