To create a string, choose String... from the Create menu to open the Create String dialog. Enter the string information and press OK. The string object will appear in the configuration diagram. You can then use the String dialog and related dialogs to edit the string, its units and its I/O devices, and to connect the string to a controller.
For DASD devices, you can optionally define a PPRC (peer-to-peer remote copy) usage type. A classification as FLASHCOPY, SIMPLEX, UTILITY, or NONSYSPLEX device is of descriptive character only. DUPLEX devices, attached to a primary operating system configuration with OFFLINE=YES are defined to an optional D/R site operating system configuration with OFFLINE=NO and vice versa, when the D/R site OS configuration is generated. For more information about PPRC usage type DUPLEX refer to D/R site OS configurations.
To create a string under a controller, first double-click on the controller in the configuration diagram (or choose Controller… from the Edit menu) to display the Controller dialog. Select a string and press the Create… button in the Strings/Devices section to open the Create String dialog. After you enter the string information in this dialog, pressing OK opens the String dialog to allow you to connect the new string to the selected controller (or another controller). You may choose not to connect the string, in which case the string is created, but it is not connected.
Note that serial numbers are assigned in the Edit Unit or Edit I/O Devices dialog; VOLSERs can be assigned in the latter dialog as well.