INITIALIZATION SYSTEM FOR VOLUME CONTENTS CONTROL TABLE

PURPOSE:To relieve a file despite the wrong initialization by saving the information at a fixed position with absence of an idle area of a volume which tries to initialize a volume contents control table available prior to the initialization of the control table or another idle area. CONSTITUTION:An idle area 15 includes an uninitialized volume contents control table 12 as well as an initialized volume contents control table 16. The table 12 stores the address information, the capacity, etc., of the files 13 and 14 which are available before initialization as they are. If a volume 11 is initialized by mistake, the accesses are given to both files 13 and 14 with use of the information saved in the table 12. Then the files 13 and 14 are copied to another volume. Thus it is possible to relieve the files so far available despite the wrong initialization.