System, method and apparatus for logical volume duplexing in a virtual tape system
August 29, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesOutboard back-up and recovery system with transfer of randomly accessible data sets between cache and host and cache and tape simultaneously Computer backup using a file system, network, disk, tape and remote archiving repository media system Computer and associated method for restoring data backed up on archive media Information memory apparatus and library apparatus using a single magnetic tape shared with a plurality of tasks Mass storage system using internal system-level mirroring Automated file error classification and correction in a hierarchical storage management system Automated read-only volume processing in a virtual tape server Apparatus for performing automated reconcile control in a virtual tape system Patent #: 6105037 InventorsApplicationNo. 10231345 filed on 08/29/2002US Classes:711/161, Archiving714/6, Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data)711/162, Backup711/4, Dynamic-type storage device (e.g., disk, tape, drum)710/33, Data transfer specifying707/204, Archiving or backup707/202, Recoverability707/201, Coherency (e.g., same view to multiple users)711/111, Accessing dynamic storage device711/113, Caching711/112, Direct access storage device (DASD)711/114, Arrayed (e.g., RAIDs)714/7, Reconfiguration (e.g., adding a replacement storage component)711/5, For multiple memory modules (e.g., banks, interleaved memory)711/165Internal relocationExaminersPrimary: Chace, Christian P.Attorney, Agent or FirmInternational ClassG06F 12/00AbstractA system, method, and apparatus are provided for copying a virtual volume to multiple physical volumes within a virtual tape system. The virtual tape system may include a virtual tape server (VTS), a library manager, and a plurality of tape drive units into which cartridges may be individually mounted. The virtual tape system stores virtual volumes, each of which represents a physical volume, although one or more virtual volumes are actually stored on a real physical volume. The library manager contains a volume database with a plurality of constructs and associated storage management actions. The constructs are received from a host computer connected to the VTS, but the storage management actions may be entered directly into the library manager, independently of the host. The library manager reads the management action associated with one or more constructs of a virtual volume and, along with the VTS, determines whether multiple physical copies of the virtual volume are to be made.Field of SearchDistributed or remote accessGenerating database or data structure (e.g., via user interface) Recoverability Archiving or backup Dynamic-type storage device (e.g., disk, tape, drum) Accessing dynamic storage device Caching Shared memory partitioning Archiving Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data) | |
