Function shipping allows you to send data to or receive data from temporary-storage queues located on remote systems. Definitions of remote temporary-storage queues can be made by the system programmer. You can, however, use the SYSID option on the WRITEQ TS, READQ TS, and DELETEQ TS commands to specify the system on which the request is to be executed.
For MRO sessions, the MAIN and AUXILIARY options of the WRITEQ TS command can be used to select the required type of storage.
For APPC sessions, the MAIN and AUXILIARY options are ignored; auxiliary storage is always used in the remote system.