Sybase IQ 15.1 does not support local stores. Multiple nodes can now write to the main store. This new functionality replaces the local stores functionality. iqlsunload is a utility that you can use to unload the contents of an IQ 12.7 local store, and unload schema and data from user tables in an IQ 12.7 local store.
iqlsunload is included with all versions of Sybase IQ starting with 12.7 ESD5. For Sybase IQ 15.1, you can find this utility in the $IQDIR15/lsunload directory.