公开(公告)号：JPH09282104A

公开(公告)日：1997-10-31

申请号：JP34532396

申请日：1996-12-25

Applicant: SYMBIOS LOGIC INC

Inventor： RODONII EI DEKONINGU ,  DONARUDO AARU HAMURISEKU ,  KAATEISU DABURIYUU RINKU

IPC: G06F3/06 ,  G06F11/14 ,  G06F11/20 ,  G11B20/18

Abstract: PROBLEM TO BE SOLVED: To provide a method for improving the performance of a data processing system and the device. SOLUTION: The data processing system 100 is provided with plural storage devices and a backup storage device 106 and the backup storage device 106 is environmentally set as a log (log: recording) device. Data are logged (recorded) in the backup storage device 106 after the backup storage device 106 is environmentally set as the log device. When a fault is generated in one of the plural storage devices, the backup storage device 106 is environmentally set again corresponding to it and used instead of the storage device in which the fault is generated.

公开(公告)号：JPH09231016A

公开(公告)日：1997-09-05

申请号：JP34489796

申请日：1996-12-25

Applicant: SYMBIOS LOGIC INC

Inventor： RODONII EI DEKONINGU ,  DONARUDO AARU HAMURISEKU

IPC: G06F12/16 ,  G06F3/06 ,  G06F11/20 ,  G06F12/00 ,  G11B20/18

Abstract: PROBLEM TO BE SOLVED: To quickly produce a snap shot copy in order to back up the data in a RAID(redundant array of independent disk) storage subsystem. SOLUTION: This method is composed as follows. That is, a copied RAID logical device has an arithmetic component and non-arithmetic miller component in a process where the environment of the copied RAID logical device in a RAID storage subsystem 100 (copied RAID logical device environment setting process). An environment is set again for a disk drive in the system 100 and an alternate miller component is produced in place of the copied RAID logical device (disk drive environment resetting process). Then the data are generated on the alternate Miller component and a snap shot copy of the data on the arithmetic component is produced (alternate miller component data regeneration process).