JPS6468850A - System crush recovery processing system - Google Patents

System crush recovery processing system

Info

Publication number
JPS6468850A
JPS6468850A JP62227105A JP22710587A JPS6468850A JP S6468850 A JPS6468850 A JP S6468850A JP 62227105 A JP62227105 A JP 62227105A JP 22710587 A JP22710587 A JP 22710587A JP S6468850 A JPS6468850 A JP S6468850A
Authority
JP
Japan
Prior art keywords
storage device
data base
transaction processing
storage means
new data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62227105A
Other languages
Japanese (ja)
Inventor
Shigeru Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62227105A priority Critical patent/JPS6468850A/en
Publication of JPS6468850A publication Critical patent/JPS6468850A/en
Pending legal-status Critical Current

Links

Landscapes

  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To speed up recovery, by providing a second non-volatile storage means which has a capacity smaller than that of a first storage means and can be made access at high speed and restoring a set of new data based on log data written in the second storage means at the time of the occurrence of system crush. CONSTITUTION:A second storage device 17 is mainly taken as the object to make access to a data base in the normal transaction processing, and log data 18 is written to update a new data base 19 in case of update. Since the second storage device 17 consists of a medium which can be made access at speed higher than a first storage device 15, the overhead of the transaction processing is reduced. Since the first storage device 15 is reflected on an original data base 16 asynchronously with the transaction processing with respect to plural transactions, I/O overhead to the first storage device 15 is reduced. Meanwhile, a small quantity of log data 18 is read in from the second storage device 17 at high speed to quickly restore the new data base in the recovery processing after system crush.
JP62227105A 1987-09-10 1987-09-10 System crush recovery processing system Pending JPS6468850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227105A JPS6468850A (en) 1987-09-10 1987-09-10 System crush recovery processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227105A JPS6468850A (en) 1987-09-10 1987-09-10 System crush recovery processing system

Publications (1)

Publication Number Publication Date
JPS6468850A true JPS6468850A (en) 1989-03-14

Family

ID=16855555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227105A Pending JPS6468850A (en) 1987-09-10 1987-09-10 System crush recovery processing system

Country Status (1)

Country Link
JP (1) JPS6468850A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443441A (en) * 1990-06-08 1992-02-13 Fujitsu Ltd Log control processing system for data base
WO1993003436A1 (en) * 1991-08-06 1993-02-18 Fujitsu Limited Method and apparatus for reducing lock period of shared buffer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443441A (en) * 1990-06-08 1992-02-13 Fujitsu Ltd Log control processing system for data base
WO1993003436A1 (en) * 1991-08-06 1993-02-18 Fujitsu Limited Method and apparatus for reducing lock period of shared buffer

Similar Documents

Publication Publication Date Title
JPS6421649A (en) History information acquisition system
AU3318795A (en) Process for loading a protected storage zone of an information processing device, and associated device
JPS6468850A (en) System crush recovery processing system
JPS56114062A (en) Multiplex information process system
EP0351109A3 (en) Reducing resources in a high reliability data storage subsystem
GB1507428A (en) Data processing systems
EP0164972A3 (en) Shared memory multiprocessor system
JPS6476346A (en) Disk cache control system
EP0375892A3 (en) Data processing system
JPS5557959A (en) On-line recovery control system
JPS56169298A (en) Memory backup system
JPS5371536A (en) Data input system
JPS57109196A (en) Electronic computer system
JPS5533252A (en) Memory system
JPS5712469A (en) Buffer memory control system
JPS6410363A (en) Data recovery system for storage device
JPS55154649A (en) Disc cash write-in system
JPS5494847A (en) Read-in system for result of parity check to reproducing data with magnetic card reader/writer
JPS6488626A (en) File area restoration system
JPS642155A (en) Write controlling method for external memory device
JPS57183698A (en) Preserving method for contents of main storage device
JPS56164457A (en) Disc controlling device
JPS5368916A (en) Display system
JPS56117383A (en) Memory control system
JPS53141518A (en) Storing system