CKPTDSN = dsn

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This parameter specifies the file name of the IBM® Connect:Direct® VSAM Checkpoint/restart file. No default exists for this parameter.

Modifiable through MODIFY INITPARMS command: NO

Note: From Connect:Direct 6.4 release onwards, the layout of the IBM Connect:Direct VSAM Checkpoint/Restart file has been modified. A new CKPT file with updated attributes is required to be defined using JCL ‘DGAJCKPT’ from the installation dataset “$CD.SDGAJCL” for Connect:Direct z/OS version 6.4.