I am not , one platform DB backup with work other flatform.
but you can use db2look & DB2 export & load utilities,
but based on you DB size ,data volumns ( if any lob/clob)
db2look -l -x -e -o outputfile
above statement will take DDL from you DB ( before that check your APP_CTL_HEAP_SZ Db parm ,)
generate
export & load scripts from system catalogs , ftp .IXF file load scripts to target DB Server.
-Lekharaju Ennam