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Checkpoint/Restart can be used with data sets when VPE is being used, but processing restarts at the data set's high-used RBA, rather than the point where the checkpoint was taken. This occurs because VPE uses LSR and this is how LSR affects Checkpoint/Restart. If your application currently depends on Checkpoint/Restart, become familiar with the difference in restart processing for files using LSR before using VPE with that application. See IBM's Checkpoint / Restart Guide, which contains information about restart processing for VSAM files.
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