公开(公告)号：JPH04228153A

公开(公告)日：1992-08-18

申请号：JP10370891

申请日：1991-03-14

Applicant: IBM

Inventor： JIYON SUCHIYUWAATO BESUTO ,  TEIMOSHII JIYOSEFU CHIYAINAA ,  TOOMASU UIRIAMU GURASAA ,  RICHIYAADO GURENBAAGU ,  ABUIJITSUTO MUKAJII MUKAJII ,  JIERII RII NEUBAUAA ,  JIYON RARUFU REIDENBATSUCHI ,  ROBAATO ERUSUUOOSU SUKOTSUPU ,  ROBAATO AREN SUKURANTON

IPC: G11B20/12 ,  G06F3/06 ,  G06F11/00 ,  G06F11/10 ,  G06F11/20 ,  G11B20/18 ,  G11B33/02 ,  G11C29/00

Abstract: PURPOSE: To prevent the loss of data even when one driven is out of order by storing data in a first to a (n-1)th drives and parity information in an nth drive. CONSTITUTION: A disk storage system includes an array/cluster controller 5 and plural storage mechanism arrays 7-9. The constitution of four (n=4) separated disk files 7a-7d into which the respective arrays are divided is preferable since a half/high disk drive is geometrically matched with an existing shape factor of a personal computer. The array is designed as the subsystem of a direct access storage device, is a system so that the data are stored and fetched at high speed and with high reliability and the data are dispersed between the constituent elements of the system.