z/OS MVS JCL Reference
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Parameter definition

z/OS MVS JCL Reference
SA23-1385-00

nodename.userid
nodename:userid
nodename/userid
nodename(userid)
Identifies a node and a TSO/E or VM userid at that node. The nodename is a symbolic name defined by the installation during initialization; nodename is 1 through 8 alphanumeric or national ($, #, @) characters. The userid must be defined at the node; userid for TSO/E is 1 through 7 alphanumeric or national ($, #, @) characters and for VM is 1 through 8 alphanumeric or national ($, #, @) characters.
userid
Identifies a TSO/E or VM user. The userid for TSO/E is 1 through 7 alphanumeric or national ($, #, @) characters and for VM is 1 through 8 alphanumeric or national ($, #, @) characters. When you specify only a userid, JES2 assumes that the userid is at the origin node.

The userid may also be a valid remote ID in the form Rnnnn or a destid for a remote. If the userid is specified as R1-R9999, JES2 assumes the notify message is intended for a remote and not a userid. If the remote is defined to the system or is less than the highest defined remote for your system, the notify message is queued to the remote. If the remote value is greater than the highest defined remote but less than the maximum allowed remote, the notify message is discarded. If the Rxxxx value specified is greater than R9999, JES2 considers that a TSO/E userid and not a remote ID.

A valid remote ID is only found when the node specification is for the local node. A valid specification can be in the form of NxRy.

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