JPS5963747U - Dual port disk unit - Google Patents

Dual port disk unit

Info

Publication number
JPS5963747U
JPS5963747U JP15724782U JP15724782U JPS5963747U JP S5963747 U JPS5963747 U JP S5963747U JP 15724782 U JP15724782 U JP 15724782U JP 15724782 U JP15724782 U JP 15724782U JP S5963747 U JPS5963747 U JP S5963747U
Authority
JP
Japan
Prior art keywords
disk unit
dual port
unit
data
magnetic disk
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
JP15724782U
Other languages
Japanese (ja)
Inventor
益野　修
義道 奥野
Original Assignee
株式会社明電舎
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 株式会社明電舎 filed Critical 株式会社明電舎
Priority to JP15724782U priority Critical patent/JPS5963747U/en
Publication of JPS5963747U publication Critical patent/JPS5963747U/en
Pending legal-status Critical Current

Links

Landscapes

  • Hardware Redundancy (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の一実施例を示す構成図である。 １．２・・・磁気ディスクユニット、３・・・内部バス
、４・・・マイクロプロセッサユニット、５□、５□・
・・キャッシュメモリ、６・・・キャッシュメモリコン
トローラ、７・・・・・・システムバスインターフェー
ス、８・・・システムバス、９・・・計算機。The drawing is a configuration diagram showing an embodiment of the present invention. 1.2...Magnetic disk unit, 3...Internal bus, 4...Microprocessor unit, 5□, 5□・
... Cache memory, 6... Cache memory controller, 7... System bus interface, 8... System bus, 9... Computer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] １台の磁気ディスクユニットと、この磁気ディスクユニ
ットのバックアップ用にされる磁気ディスクユニットと
、これら磁気ディスク岳ニットにデータ書込みとデータ
読出しの制御機船を持つマイクロプロセッサユニットと
、上記２つの磁気ディス渋ユニットに対応づけて夫々デ
ータ転送される一対のキャッシュメモリと、これらキャ
ッシュメモリとホスト計算機とのデータ授受を制御する
キャッシュメモリコントローラとを内部バスで結合し、
この内部バスはシステムインターフェース゛及びシステ
ムバスを介してホスト計算機に結合したことを特徴とす
るデュアルポートディスクユニット。A magnetic disk unit, a magnetic disk unit for backup of this magnetic disk unit, a microprocessor unit having a control machine for writing data to and reading data from these magnetic disks, and the two magnetic disks mentioned above. A pair of cache memories to which data is transferred in association with each Shibu unit, and a cache memory controller that controls data exchange between these cache memories and a host computer are connected via an internal bus,
A dual port disk unit characterized in that this internal bus is connected to a host computer via a system interface and a system bus.
JP15724782U 1982-10-18 1982-10-18 Dual port disk unit Pending JPS5963747U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15724782U JPS5963747U (en) 1982-10-18 1982-10-18 Dual port disk unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15724782U JPS5963747U (en) 1982-10-18 1982-10-18 Dual port disk unit

Publications (1)

Publication Number Publication Date
JPS5963747U true JPS5963747U (en) 1984-04-26

Family

ID=30346738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15724782U Pending JPS5963747U (en) 1982-10-18 1982-10-18 Dual port disk unit

Country Status (1)

Country Link
JP (1) JPS5963747U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249132A (en) * 1985-04-27 1986-11-06 Nec Corp Data double write system by magnetic disc controller
JPWO2004114115A1 (en) * 2003-06-19 2006-07-20 富士通株式会社 RAID device, RAID control method, and RAID control program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127262A (en) * 1980-03-10 1981-10-05 Hitachi Ltd Peripheral storage controller
JPS5797157A (en) * 1980-12-08 1982-06-16 Ricoh Co Ltd Magnetic disk control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127262A (en) * 1980-03-10 1981-10-05 Hitachi Ltd Peripheral storage controller
JPS5797157A (en) * 1980-12-08 1982-06-16 Ricoh Co Ltd Magnetic disk control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249132A (en) * 1985-04-27 1986-11-06 Nec Corp Data double write system by magnetic disc controller
JPWO2004114115A1 (en) * 2003-06-19 2006-07-20 富士通株式会社 RAID device, RAID control method, and RAID control program

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