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Cross-Region Sharing z/OS DFSMS Using Data Sets SC23-6855-00 |
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The extent of data set sharing within one operating system depends on the data set disposition and the cross-region share option specified when you define the data set. Independent job steps or subtasks in an MVS system or multiple systems with global resource serialization (GRS) can access a VSAM data set simultaneously. For more information about GRS see z/OS MVS Planning: Global Resource Serialization. To share a data set, each user must specify DISP=SHR in the data set's DD statement. |
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