JP2003345526A5 - - Google Patents

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JP2003345526A5
JP2003345526A5 JP2002154944A JP2002154944A JP2003345526A5 JP 2003345526 A5 JP2003345526 A5 JP 2003345526A5 JP 2002154944 A JP2002154944 A JP 2002154944A JP 2002154944 A JP2002154944 A JP 2002154944A JP 2003345526 A5 JP2003345526 A5 JP 2003345526A5
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Japan
Prior art keywords
storage
storage device
data
memory
storage area
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JP2002154944A
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Japanese (ja)
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JP2003345526A (en
JP4228590B2 (en
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Publication date
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Priority to JP2002154944A priority Critical patent/JP4228590B2/en
Priority claimed from JP2002154944A external-priority patent/JP4228590B2/en
Priority to US10/225,159 priority patent/US7152144B2/en
Priority to EP02018810A priority patent/EP1367481A3/en
Publication of JP2003345526A publication Critical patent/JP2003345526A/en
Publication of JP2003345526A5 publication Critical patent/JP2003345526A5/ja
Priority to US11/633,512 priority patent/US20070079078A1/en
Application granted granted Critical
Publication of JP4228590B2 publication Critical patent/JP4228590B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (12)

外部装置とのインターフェイスと、記憶媒体と、プロセッサとを有する記憶装置であって、
前記記憶媒体が有する記憶領域に対応する情報を有するメモリを有し、
前記プロセッサは、
前記外部装置から入力されるデータ読み出し命令に対して、
前記データ読み出し命令に対応する記憶領域に対応する前記情報に従って、前記記憶領域に格納されたデータを前記外部装置に転送するか、前記記憶領域に格納されたデータとは無関係な所定の値を前記外部装置に転送することを特徴とする記憶装置。A storage device having an interface with an external device, a storage medium, and a processor,
A memory having information corresponding to a storage area of the storage medium;
The processor is
In response to a data read command input from the external device,
According to the information corresponding to the storage area corresponding to the data read command, the data stored in the storage area is transferred to the external device, or a predetermined value unrelated to the data stored in the storage area is A storage device, wherein the storage device is transferred to an external device. 前記外部装置からデータを消去する命令を受け取った場合、前記メモリに格納された情報を全て所定の値とすることを特徴とする請求項１記載の記憶装置。  2. The storage device according to claim 1, wherein when a command to erase data is received from the external device, all information stored in the memory is set to a predetermined value. 前記記憶領域は、シリンダ単位に分割されていることを特徴とする請求項２記載の記憶装置。  The storage device according to claim 2, wherein the storage area is divided into cylinders. 前記記憶領域は、所定の数のセクタ単位であることを特徴とする請求項２記載の記憶装置。3. The storage device according to claim 2, wherein the storage area is a predetermined number of sectors. 前記所定の値とは、０であることを特徴とする請求項２記載の記憶装置。  The storage device according to claim 2, wherein the predetermined value is zero. 外部装置とのインターフェイスと、記憶媒体と、プロセッサとを有する記憶装置であって、
前記記憶媒体が有する記憶領域に対応する情報を有するメモリを有し、
前記プロセッサは、
前記外部装置から入力されるデータ消去命令に対して、
前記メモリの値を所定の値とすることを特徴とする記憶装置。A storage device having an interface with an external device, a storage medium, and a processor,
A memory having information corresponding to a storage area of the storage medium;
The processor is
In response to a data erasure command input from the external device,
A storage device characterized in that a value of the memory is set to a predetermined value. 前記記憶媒体は、磁気記憶媒体であることを特徴とする、請求項１から６いずれか記載の記憶装置。The storage medium is characterized by a magnetic storage medium, a storage device according to any one of claims 1 6. 計算機とインターフェイスを介して接続され、計算機からの要求に応じてブロック単位でデータ入出力を行う磁気記憶装置において、
該磁気記憶装置が有する記憶領域を複数のグループに分類し、
グループ化された記憶領域の集合ごとに対応するビットマップメモリを有し、
前記計算機からある前記記憶領域に対するリード要求があった場合に、前記ビットマップメモリの値を参照し、
前記ビットマップメモリの値によって、０のデータを前記計算機に送信することを特徴とする磁気記憶装置。In a magnetic storage device that is connected to a computer via an interface and performs data input / output in block units in response to a request from the computer,
Classifying the storage area of the magnetic storage device into a plurality of groups;
A bitmap memory corresponding to each set of grouped storage areas;
When there is a read request to the storage area from the computer, refer to the value of the bitmap memory,
A magnetic storage device that transmits data of 0 to the computer according to a value of the bitmap memory. 前記計算機からデータ消去要求を受け取り、ビットマップメモリの値を変更して、磁気記憶媒体に記憶されているデータを読み出せなくする手段を有することを特徴とする請求項８記載の磁気記憶装置。  9. The magnetic storage device according to claim 8, further comprising means for receiving a data erasure request from the computer and changing the value of the bitmap memory so that the data stored in the magnetic storage medium cannot be read. 前記インターフェイスとは別のインターフェイスを有し、前記別のインターフェイスを介してデータ消去要求を受け取り、前記ビットマップメモリの値を変更して、磁気記憶媒体に記憶されているデータを読み出せなくする手段を有することを特徴とする請求項９記載の磁気記憶装置。  Means having an interface different from the interface, receiving a data erasure request via the another interface, and changing the value of the bitmap memory so that the data stored in the magnetic storage medium cannot be read. 10. The magnetic storage device according to claim 9, further comprising: 前記記憶領域の分類をシリンダごとに行うことを特徴とする請求項１０記載の磁気記憶装置。  The magnetic storage device according to claim 10, wherein the storage area is classified for each cylinder. 外部装置とのインターフェイスと、記憶媒体と、プロセッサと、メモリと、を有する記憶装置におけるデータ消去方法であって、
前記メモリに前記記憶媒体が有する記憶領域に対応する情報を保持し、
前記プロセッサは、
前記外部装置から入力されるデータ消去命令を前記インタフェースを介して受け、前記メモリに保持される記憶領域に対応する情報を所定の値とすることを特徴とするデータ消去方法。A data erasing method in a storage device having an interface with an external device, a storage medium, a processor, and a memory ,
Holding information corresponding to a storage area of the storage medium in the memory ;
The processor is
A data erasing method , wherein a data erasing command input from the external device is received via the interface, and information corresponding to a storage area held in the memory is set to a predetermined value.
JP2002154944A 2002-05-29 2002-05-29 Storage device Expired - Fee Related JP4228590B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002154944A JP4228590B2 (en) 2002-05-29 2002-05-29 Storage device
US10/225,159 US7152144B2 (en) 2002-05-29 2002-08-22 Centralized storage management method
EP02018810A EP1367481A3 (en) 2002-05-29 2002-08-22 Centralized storage management method
US11/633,512 US20070079078A1 (en) 2002-05-29 2006-12-05 Centralized storage management method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002154944A JP4228590B2 (en) 2002-05-29 2002-05-29 Storage device

Publications (3)

Publication Number Publication Date
JP2003345526A JP2003345526A (en) 2003-12-05
JP2003345526A5 true JP2003345526A5 (en) 2005-09-15
JP4228590B2 JP4228590B2 (en) 2009-02-25

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JP2002154944A Expired - Fee Related JP4228590B2 (en) 2002-05-29 2002-05-29 Storage device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4769853B2 (en) 2008-09-19 2011-09-07 株式会社日立製作所 Storage control device and data erasing method of storage device

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