JPS6464047A - Disk cache control system - Google Patents

Disk cache control system

Info

Publication number
JPS6464047A
JPS6464047A JP62221595A JP22159587A JPS6464047A JP S6464047 A JPS6464047 A JP S6464047A JP 62221595 A JP62221595 A JP 62221595A JP 22159587 A JP22159587 A JP 22159587A JP S6464047 A JPS6464047 A JP S6464047A
Authority
JP
Japan
Prior art keywords
memory
data
write data
write
alternate
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
JP62221595A
Other languages
Japanese (ja)
Inventor
Isao Sasazaki
Naoyuki Nishimura
Yasuyuki Higashiura
Shigeru Hashimoto
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 JP62221595A priority Critical patent/JPS6464047A/en
Publication of JPS6464047A publication Critical patent/JPS6464047A/en
Pending legal-status Critical Current

Links

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)
  • Debugging And Monitoring (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To realize the effective application and to prevent deterioration of the writing performance of a nonvolatile memory, by checking periodically the memory to exchange disks when the alternate data exceeds the prescribed value and releasing an alternate data storing area. CONSTITUTION:A nonvolatile memory 22 is added to a disk cache control adapter 14 in addition to a volatile cache memory 20. The write data is transferred to the memory 22 as well as to the memory 20 in a wiring state of a write-back system. When the write access given to a magnetic disk device 16 is abnormal, the adapter 14 stores the write data to be given to an abnormal sector into a disk alternate area. In case this alternate area is filled with data, the write data is stored in the memory 22. Then the write data of the memory 22 is periodically checked and the disks are exchanged when this checked data exceeds the prescribed value. Thus the write data is copied to a new disk and the write data storing area is released.
JP62221595A 1987-09-04 1987-09-04 Disk cache control system Pending JPS6464047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221595A JPS6464047A (en) 1987-09-04 1987-09-04 Disk cache control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221595A JPS6464047A (en) 1987-09-04 1987-09-04 Disk cache control system

Publications (1)

Publication Number Publication Date
JPS6464047A true JPS6464047A (en) 1989-03-09

Family

ID=16769219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221595A Pending JPS6464047A (en) 1987-09-04 1987-09-04 Disk cache control system

Country Status (1)

Country Link
JP (1) JPS6464047A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04312146A (en) * 1991-04-11 1992-11-04 Mitsubishi Electric Corp Recording device and array type recording device
JPH0772980A (en) * 1992-12-07 1995-03-17 Matsushita Electric Ind Co Ltd Information recording/reproducing device
US5405230A (en) * 1991-03-26 1995-04-11 Tokyo Electron Limited Load-lock unit and wafer transfer system
JP2009087348A (en) * 2007-09-28 2009-04-23 Symantec Corp System and method of redundantly storing and retrieving data using cooperating storage devices
JP2009217603A (en) * 2008-03-11 2009-09-24 Toshiba Corp Memory system
JP2012509521A (en) * 2008-11-18 2012-04-19 エルエスアイ コーポレーション System and method for recovering solid state drive data
US8706950B2 (en) 2008-03-01 2014-04-22 Kabushiki Kaisha Toshiba Memory system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405230A (en) * 1991-03-26 1995-04-11 Tokyo Electron Limited Load-lock unit and wafer transfer system
JPH04312146A (en) * 1991-04-11 1992-11-04 Mitsubishi Electric Corp Recording device and array type recording device
JPH0772980A (en) * 1992-12-07 1995-03-17 Matsushita Electric Ind Co Ltd Information recording/reproducing device
JP2009087348A (en) * 2007-09-28 2009-04-23 Symantec Corp System and method of redundantly storing and retrieving data using cooperating storage devices
US8706950B2 (en) 2008-03-01 2014-04-22 Kabushiki Kaisha Toshiba Memory system
US9201717B2 (en) 2008-03-01 2015-12-01 Kabushiki Kaisha Toshiba Memory system
US10901625B2 (en) 2008-03-01 2021-01-26 Toshiba Memory Corporation Memory system
US11409442B2 (en) 2008-03-01 2022-08-09 Kioxia Corporation Memory system
JP2009217603A (en) * 2008-03-11 2009-09-24 Toshiba Corp Memory system
JP2012509521A (en) * 2008-11-18 2012-04-19 エルエスアイ コーポレーション System and method for recovering solid state drive data

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