KFAPD0002E_d Data set variable can not be initialized because it is variable.
Explanation
The INITDS was unable to initialize the specified data set variable for the reason variable.
Operator response
If the reason is that the file is the current active data store, issue the SWITCH command to make a different file in the group the active data store. Then reissue the INITDS command. If the reason is that the file is offline, issue the ADDFILE command to add the specified file to a group. Then reissue the INITDS command.