STORAGE 
( { INITIAL integer [ K | M ]
  | NEXT integer [ K | M ]
  | MINEXTENTS integer
  | MAXEXTENTS { integer | UNLIMITED }
  | PCTINCREASE integer
  | FREELISTS integer
  | FREELIST GROUPS integer
  | OPTIMAL [ integer [ K | M ] | NULL ]
  | BUFFER_POOL { KEEP | RECYCLE | DEFAULT }
  } 
  [ INITIAL integer [ K | M ]
  | NEXT integer [ K | M ]
  | MINEXTENTS integer
  | MAXEXTENTS { integer | UNLIMITED }
  | PCTINCREASE integer
  | FREELISTS integer
  | FREELIST GROUPS integer
  | OPTIMAL [ integer [ K | M ] | NULL ]
  | BUFFER_POOL { KEEP | RECYCLE | DEFAULT }
  ]... 
)

For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.