| 摘要 |
Methods and devices are provided for sharing data across two or more different clusters. An operating system (OS) in a cluster checks a metadata record of a file system of a shared device to retrieve path group identifiers (PGIDs). A control unit list of the shared device is checked to retrieve PGIDs that are active on the shared device. An input/output supervisor (IOS) record in a couple dataset is checked to retrieve PGIDs in the cluster. The metadata record, control unit list, and IOS record are compared, and if a PGID is found in the metadata record that is not in the IOS record and if the found PGID is not in the control unit list, the found PGID is not active on the shared device. The found PGID of the different cluster is removed from metadata record, and members of the cluster can R/W to file system.
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