JP2010511225A5 - - Google Patents

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JP2010511225A5
JP2010511225A5 JP2009538408A JP2009538408A JP2010511225A5 JP 2010511225 A5 JP2010511225 A5 JP 2010511225A5 JP 2009538408 A JP2009538408 A JP 2009538408A JP 2009538408 A JP2009538408 A JP 2009538408A JP 2010511225 A5 JP2010511225 A5 JP 2010511225A5
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Prior art keywords
lifetime
storage devices
shortening
per cell
flash memory
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JP2009538408A
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JP5171840B2 (en
JP2010511225A (en
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Priority claimed from US11/852,129 external-priority patent/US7904764B2/en
Priority claimed from US11/852,104 external-priority patent/US7904619B2/en
Priority claimed from US11/852,082 external-priority patent/US7809900B2/en
Priority claimed from US11/852,117 external-priority patent/US7747813B2/en
Priority claimed from US11/852,138 external-priority patent/US20080126685A1/en
Application filed filed Critical
Priority claimed from PCT/US2007/024295 external-priority patent/WO2008063647A2/en
Publication of JP2010511225A publication Critical patent/JP2010511225A/en
Publication of JP2010511225A5 publication Critical patent/JP2010511225A5/ja
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Publication of JP5171840B2 publication Critical patent/JP5171840B2/en
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Claims (20)

ホストプロセッサから複数のストレージデバイスに適用される動作を開始するコマンドを受け取るステップと、
前記動作が前記複数のストレージデバイスの寿命に対して、寿命を縮める動作であるか否かを判定するステップと、
前記複数のストレージデバイスについて、寿命を縮める動作の総合レートを求めるステップと、
前記複数のストレージデバイスの所望の寿命に基づいて、寿命を縮める動作の最大平均動作レートを求めるステップと、
前記寿命を縮める動作の総合レートを構成する積分関数に基づいて、前記寿命を縮める動作の少なくとも一部を条件付きで遅延するステップであって、前記寿命を縮める動作の総合レートを、前記寿命を縮める動作の最大平均動作レートを動的に超えることが選択的に可能とする、該ステップと、
を含む方法。 Receiving a command to initiate an operation applied to a plurality of storage devices from a host processor;
Determining whether the operation is an operation for shortening the lifetime of the plurality of storage devices;
Obtaining an overall rate of operation that shortens the lifetime for the plurality of storage devices;
Determining a maximum average operation rate of operations that reduce the lifetime based on a desired lifetime of the plurality of storage devices;
A step of conditionally delaying at least a part of the operation for shortening the life based on an integral function constituting an overall rate of the operation for shortening the life, wherein the overall rate of the operation for shortening the life Selectively allowing the maximum average operating rate of the contracting motion to be dynamically exceeded ;
Including methods. 前記寿命が、所望の寿命、実際の寿命、及び推定寿命のうちの少なくとも一つを含む、請求項１に記載の方法。   The method of claim 1, wherein the lifetime comprises at least one of a desired lifetime, an actual lifetime, and an estimated lifetime. 前記動作の少なくとも一部を条件付きで遅延するステップが、該動作を開始する前記コマンドを遅延させることを含む、請求項１に記載の方法。 The method of claim 1, wherein conditionally delaying at least a portion of the operation includes delaying the command that initiates the operation. 前記遅延するステップが、さらに、前記動作を開始するアプリケーションに基づく、請求項１に記載の方法。 The method of claim 1, wherein the delaying step is further based on an application that initiates the operation. 前記遅延するステップが、前記動作を開始するアプリケーションから独立である、請求項１に記載の方法。 The method of claim 1, wherein the delaying step is independent of an application that initiates the operation. 前記動作が、消去動作を含む、請求項１に記載の方法。   The method of claim 1, wherein the operation comprises an erase operation. 前記動作が、プログラム動作を含む、請求項１に記載の方法。   The method of claim 1, wherein the operation comprises a program operation. 前記複数のストレージデバイスの使用履歴に基づいて、前記動作の前記少なくとも一部を条件付きで遅延するステップを更に含む、請求項１に記載の方法。 The method of claim 1 , further comprising conditionally delaying the at least a portion of the operation based on usage history of the plurality of storage devices . 前記複数のストレージデバイスの予測された使用に基づいて、前記動作の前記少なくとも一部を条件付きで遅延するステップを更に含む、請求項１に記載の方法。 The method of claim 1 , further comprising : conditionally delaying the at least part of the operation based on predicted use of the plurality of storage devices . その間に前記動作が開始されるタイムインターバルに基づいて、前記動作の前記少なくとも一部を条件付きで遅延するステップを更に含む、請求項１に記載の方法。 The method of claim 1 , further comprising conditionally delaying the at least a portion of the operation based on a time interval during which the operation is initiated. 前記動作の一部だけが遅延される、請求項１に記載の方法。   The method of claim 1, wherein only a portion of the operation is delayed. 前記複数のストレージデバイスが、機械的ストレージデバイスを含む、請求項１に記載の方法。 The method of claim 1, wherein the plurality of storage devices comprise mechanical storage devices. 前記複数のストレージデバイスが、不揮発性メモリデバイスを含む、請求項１に記載の方法。   The method of claim 1, wherein the plurality of storage devices comprise non-volatile memory devices. 前記不揮発性メモリデバイスが、セルあたり単一ビットのＮＯＲフラッシュメモリ、セルあたり複数ビットのＮＯＲフラッシュメモリ、セルあたり単一ビットのＮＡＮＤフラッシュメモリ、セルあたり複数ビットのＮＡＮＤフラッシュメモリ、セルあたり複数レベル複数ビットのＮＡＮＤフラッシュ、及び大ブロックフラッシュメモリのうちの少なくとも一つを含む、請求項１３に記載の方法。 The non-volatile memory device is a single bit NOR flash memory per cell, a multiple bit NOR flash memory per cell, a single bit NAND flash memory per cell, a multiple bit NAND flash memory per cell, a multiple level multiple per cell 14. The method of claim 13 , comprising at least one of a bit NAND flash and a large block flash memory. ホストプロセッサから複数のストレージデバイスに適用される動作を開始するコマンドを受け取る手段と、
前記動作が前記複数のストレージデバイスの寿命に対して、寿命を縮める動作であるか否かを判定する手段と、
前記複数のストレージデバイスについて、寿命を縮める動作の総合レートを求める手段と、
前記複数のストレージデバイスの所望の寿命に基づいて、寿命を縮める動作の最大平均動作レートを求める手段と、
前記寿命を縮める動作の総合レートを構成する積分関数に基づいて、前記寿命を縮める動作の少なくとも一部を条件付きで遅延する手段であって、前記寿命を縮める動作の総合レートを、前記寿命を縮める動作の最大平均動作レートを動的に超えることが選択的に可能とする、該手段と、
を備えるストレージシステム。 Means for receiving a command to initiate an operation applied to a plurality of storage devices from a host processor;
Means for determining whether or not the operation is an operation of shortening a life of the plurality of storage devices;
Means for obtaining an overall rate of operation for shortening the life of the plurality of storage devices;
Means for determining a maximum average operation rate of operations for shortening the life based on a desired life of the plurality of storage devices;
A means for conditionally delaying at least a part of the operation for shortening the lifetime based on an integral function constituting an overall rate of the operation for shortening the lifetime, wherein the overall rate for the operation for shortening the lifetime is calculated by reducing the lifetime. The means selectively allowing dynamically exceeding a maximum average operating rate of the contracting motion ;
A storage system comprising: 前記動作の少なくとも一部を条件付きで遅延することが、該動作を開始する前記コマンドを遅延させることを含む、請求項１５に記載のストレージシステム。The storage system of claim 15, wherein conditionally delaying at least a portion of the operation includes delaying the command that initiates the operation. 前記動作が消去動作を含む、請求項１５に記載のストレージシステム。  The storage system according to claim 15, wherein the operation includes an erase operation. 前記動作がプログラム動作を含む、請求項１５に記載のストレージシステム。The storage system according to claim 15, wherein the operation includes a program operation. 前記ストレージデバイスが、不揮発性メモリデバイスを含む、請求項１５に記載のストレージシステム。The storage system of claim 15, wherein the storage device comprises a non-volatile memory device. 前記不揮発性メモリデバイスが、セルあたり単一ビットのＮＯＲフラッシュメモリ、セルあたり複数ビットのＮＯＲフラッシュメモリ、セルあたり単一ビットのＮＡＮＤフラッシュメモリ、セルあたり複数ビットのＮＡＮＤフラッシュメモリ、セルあたり複数レベル複数ビットのＮＡＮＤフラッシュ、及び大ブロックフラッシュメモリのうちの少なくとも一つを含む、請求項１９に記載のストレージシステム。The non-volatile memory device includes a single bit NOR flash memory per cell, a multi-bit NOR flash memory per cell, a single-bit NAND flash memory per cell, a multi-bit NAND flash memory per cell, and a plurality of levels per cell 20. The storage system of claim 19, comprising at least one of a bit NAND flash and a large block flash memory.
JP2009538408A 2006-11-24 2007-11-21 Method and storage system for delaying operation to shorten memory life Expired - Fee Related JP5171840B2 (en)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
US86084306P 2006-11-24 2006-11-24
US60/860,843 2006-11-24
US87824207P 2007-01-03 2007-01-03
US60/878,242 2007-01-03
US11/852,104 2007-09-07
US11/852,138 2007-09-07
US11/852,104 US7904619B2 (en) 2006-11-24 2007-09-07 System, method, and computer program product for reducing memory write operations using difference information
US11/852,129 2007-09-07
US11/852,082 2007-09-07
US11/852,082 US7809900B2 (en) 2006-11-24 2007-09-07 System, method, and computer program product for delaying an operation that reduces a lifetime of memory
US11/852,117 US7747813B2 (en) 2006-11-24 2007-09-07 Multi-memory device system and method for managing a lifetime thereof
US11/852,117 2007-09-07
US11/852,138 US20080126685A1 (en) 2006-11-24 2007-09-07 System, method, and computer program product for reducing memory write operations using an instruction set
US11/852,129 US7904764B2 (en) 2006-11-24 2007-09-07 Memory lifetime gauging system, method and computer program product
PCT/US2007/024295 WO2008063647A2 (en) 2006-11-24 2007-11-21 Delaying an operation that reduces a lifetime of memory

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JP2012243564A Division JP5448013B2 (en) 2006-11-24 2012-11-05 System, method, and computer program product for delaying operations that reduce memory life

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JP2010511225A JP2010511225A (en) 2010-04-08
JP2010511225A5 true JP2010511225A5 (en) 2011-01-06
JP5171840B2 JP5171840B2 (en) 2013-03-27

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JP2009538408A Expired - Fee Related JP5171840B2 (en) 2006-11-24 2007-11-21 Method and storage system for delaying operation to shorten memory life
JP2012243564A Expired - Fee Related JP5448013B2 (en) 2006-11-24 2012-11-05 System, method, and computer program product for delaying operations that reduce memory life
JP2013261097A Pending JP2014078262A (en) 2006-11-24 2013-12-18 Techniques for multi-memory device lifetime management
JP2013261095A Expired - Fee Related JP5814335B2 (en) 2006-11-24 2013-12-18 Reduction of writing and estimation and display of remaining life of nonvolatile memory

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JP2013261097A Pending JP2014078262A (en) 2006-11-24 2013-12-18 Techniques for multi-memory device lifetime management
JP2013261095A Expired - Fee Related JP5814335B2 (en) 2006-11-24 2013-12-18 Reduction of writing and estimation and display of remaining life of nonvolatile memory

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JP (4) JP5171840B2 (en)
CN (1) CN101578587B (en)
TW (1) TWI475569B (en)
WO (1) WO2008063647A2 (en)

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