KR970049546A - 레이드(raid) 제어기에서의 스트라이프 기록 방법 - Google Patents

레이드(raid) 제어기에서의 스트라이프 기록 방법 Download PDF

Info

Publication number
KR970049546A
KR970049546A KR1019960056410A KR19960056410A KR970049546A KR 970049546 A KR970049546 A KR 970049546A KR 1019960056410 A KR1019960056410 A KR 1019960056410A KR 19960056410 A KR19960056410 A KR 19960056410A KR 970049546 A KR970049546 A KR 970049546A
Authority
KR
South Korea
Prior art keywords
xor
raid controller
stripe
raid
write operation
Prior art date
Application number
KR1019960056410A
Other languages
English (en)
Other versions
KR100255847B1 (ko
Inventor
로드니 에이 다코닝
Original Assignee
김영환
현대전자산업 주식회사
박세광
현대 일렉트로닉스 어메리카
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 김영환, 현대전자산업 주식회사, 박세광, 현대 일렉트로닉스 어메리카 filed Critical 김영환
Publication of KR970049546A publication Critical patent/KR970049546A/ko
Application granted granted Critical
Publication of KR100255847B1 publication Critical patent/KR100255847B1/ko

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/10—Indexing scheme relating to G06F11/10
    • G06F2211/1002—Indexing scheme relating to G06F11/1076
    • G06F2211/1054—Parity-fast hardware, i.e. dedicated fast hardware for RAID systems with parity

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

공통 인터페이스 버스상에서 XOR 명령어 셋트 인에이블 디스크 드라이브를 가진 RAID 장치내에서 스트라이프 기록 연산을 구현하기 위한 방법으로서, 본 발명의 방법은 RAID 제어기가 XOR(패리티)발생 계산 요소를 포함할 필요성을 제거하므로써 XOR 명령어 셋트를 사용하지 않는 종래의 설계를 개선한 것이다. 또한, 본 발명의 방법은 RAID 어레이의 데이터 드라이브로 발생되는 일련의 xdwrite XOR 명령어 연산에 의해 스트라이프가 수행되는 XOR 명령어 셋트 명세에 의해 제안된 스트라이프 기록 방법을 개선한 것이다. 오히려, 본 발명의 방법은 스트라이프 기록의 데이터 부분의 병행 표준 기록을 수행하고, 방금 기록된 스트라이프내의 패리티 블록을 빠르게 재생하기 위해 패리티 디스크 드라이브로 재구축 XOR 명령어를 발생한다. 본 발명의 방법은 스트라이프 기록 연산의 최악의 경우의 회전 대기시간 지연을 2번의 회전 대기시간 주기로 단축시킨다.

Description

레이드제어기에서의 스트라이프 기록 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 방법이 유익하게 적용될 수 있는 통상적인 RAID 기억 서브시스템을 도시하는 블록도.
제4도는 XOR 명령어 셋트 인에이블 디스크 드라이브를 이용하여 스트라이프 기록을 수행하기 위한 본 발명의 방법을 도시하는 흐름도.

Claims (9)

  1. 다수의 XOR 명령어 셋트 인에이블 디스크 드라이브를 포함하는 적어도 하나의 디스크 어레이를 가진 레이드(RAID) 기억 서브시스템을 제어하기 위한 RAID 제어기에서, 상기 RAID 제어기내에서 실행가능하며 상기 디스크 어레이로 데이터의 스트라이프 기록을 수행하기 위한 방법에 있어서, 기록될 스트라이프내의 데이터를 포함하는 모든 디스크 드라이브로 기록 연산을 개시하는 단계; 및 상기 기록 연산의 완료에 응답하여, 스트라이프내의 패리티 정보를 포함하는 디스크 드라이브로 재구축 XOR 명령어를 개시하는 단계를 포함해서 이루어진 데이터의 스트라이프 기록 방법.
  2. 제1항에 있어서, 상기 기록 연산은 병렬로 수행되는 것을 특징으로 하는 데이터의 스트라이프 기록 방법.
  3. 다수의 데이터 디스크 드라이브와 적어도 하나의 XOR 명령어 셋트 인에이블 패리티 디스크 드라이브를 포함하는 디스크 어레이를 가진 레이드(RAID) 서브시스템에서, RAID 제어기내에서 실행가능하며 상기 디스크 어레이로 데이터의 기록을 수행하기 위한 방법에 있어서, 상기 디스크 드라이브의 부분집합으로 기록 연산을 개시하는 단계; 및 상기 적어도 하나의 XOR 명령어 셋트 인에이블 패리티 디스크 드라이브로 재구축 XOR 명령어를 개시하는 단계를 포함해서 이루어진 데이터 기록 방법.
  4. 제3항에 있어서, 상기 기록 연산은 병렬로 수행되는 것을 특징으로 하는 데이터 기록 방법.
  5. 제3항에 있어서, 상기 재구축 개시 단계는 상기 기록 연산의 완료에 응답하여 수행되는 것을 특징으로 하는 데이터 기록 방법.
  6. 제3항에 있어서, 상기 부분집합은 상기 다수의 데이터 디스크 드라이브의 모든 드라이브인 것을 특징으로 하는 데이터 기록 방법.
  7. 제3항에 있어서, 다수의 데이터 디스크 드라이브와 적어도 하나의 XOR 명령어 셋트 인에이블 패리티 디스크 드라이브를 포함하는 디스크 어레이를 가진 레이드(RAID) 서브시스템을 제어하기 위한 RAID 제어기에 있어서, 상기 디스크 드라이브의 부분집합으로 기록 연산을 개시하기 위한 수단; 및 상기 기록 연산 개시 수단에 응답하여, 상기 적어도 하나의 XOR 명령어 셋트 인에이블 패리티 디스크 드라이브로 재구축 XOR 명령어를 개시하기 위한 수단을 포함해서 이루어진 RAID 제어기.
  8. 제7항에 있어서, 상기 기록 연산은 병렬로 수행되는 것을 특징으로 하는 RAID 제어기.
  9. 제7항에 있어서, 상기 부분집합은 상기 다수의 데이터 디스크 드라이브의 모든 드라이브인 것을 특징으로 하는 RAID 제어기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960056410A 1995-12-29 1996-11-22 레이드 제어기에서의 스트라이프 기록 방법 KR100255847B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8/581,153 1995-12-29
US08/581,153 1995-12-29
US08/581,153 US5742752A (en) 1995-12-29 1995-12-29 Method for performing a RAID stripe write operation using a drive XOR command set

Publications (2)

Publication Number Publication Date
KR970049546A true KR970049546A (ko) 1997-07-29
KR100255847B1 KR100255847B1 (ko) 2000-05-01

Family

ID=24324102

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960056410A KR100255847B1 (ko) 1995-12-29 1996-11-22 레이드 제어기에서의 스트라이프 기록 방법

Country Status (2)

Country Link
US (1) US5742752A (ko)
KR (1) KR100255847B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109857584A (zh) * 2017-11-30 2019-06-07 慧荣科技股份有限公司 于记忆装置进行访问控制的方法、记忆装置和其控制器

Families Citing this family (129)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5963962A (en) 1995-05-31 1999-10-05 Network Appliance, Inc. Write anywhere file-system layout
EP1031928B1 (en) * 1993-06-04 2005-05-18 Network Appliance, Inc. A method for providing parity in a raid sub-system using non-volatile memory
US6449730B2 (en) 1995-10-24 2002-09-10 Seachange Technology, Inc. Loosely coupled mass storage computer cluster
US5862312A (en) * 1995-10-24 1999-01-19 Seachange Technology, Inc. Loosely coupled mass storage computer cluster
US6567926B2 (en) * 1995-10-24 2003-05-20 Seachange International, Inc. Loosely coupled mass storage computer cluster
JP3133004B2 (ja) 1996-11-21 2001-02-05 株式会社日立製作所 ディスクアレイ装置およびその制御方法
US5950225A (en) * 1997-02-28 1999-09-07 Network Appliance, Inc. Fly-by XOR for generating parity for data gleaned from a bus
US6021462A (en) * 1997-08-29 2000-02-01 Apple Computer, Inc. Methods and apparatus for system memory efficient disk access to a raid system using stripe control information
US6151641A (en) * 1997-09-30 2000-11-21 Lsi Logic Corporation DMA controller of a RAID storage controller with integrated XOR parity computation capability adapted to compute parity in parallel with the transfer of data segments
US6516351B2 (en) 1997-12-05 2003-02-04 Network Appliance, Inc. Enforcing uniform file-locking for diverse file-locking protocols
US6457130B2 (en) 1998-03-03 2002-09-24 Network Appliance, Inc. File access control in a multi-protocol file server
US6138125A (en) * 1998-03-31 2000-10-24 Lsi Logic Corporation Block coding method and system for failure recovery in disk arrays
US6279011B1 (en) 1998-06-19 2001-08-21 Network Appliance, Inc. Backup and restore for heterogeneous file server environment
US6343984B1 (en) 1998-11-30 2002-02-05 Network Appliance, Inc. Laminar flow duct cooling system
KR100321987B1 (ko) * 1999-02-19 2002-02-04 윤종용 레이드 시스템에서 패러티 캐쉬 및 이의 운영 방법
US6591337B1 (en) * 1999-04-05 2003-07-08 Lsi Logic Corporation Method and apparatus for caching objects in a disparate management environment
US6553458B1 (en) * 1999-12-14 2003-04-22 Ncr Corporation Integrated redundant storage device
US6370616B1 (en) * 2000-04-04 2002-04-09 Compaq Computer Corporation Memory interface controller for datum raid operations with a datum multiplier
US6636879B1 (en) 2000-08-18 2003-10-21 Network Appliance, Inc. Space allocation in a write anywhere file system
US7072916B1 (en) 2000-08-18 2006-07-04 Network Appliance, Inc. Instant snapshot
US6728922B1 (en) 2000-08-18 2004-04-27 Network Appliance, Inc. Dynamic data space
TW484723U (en) * 2000-12-20 2002-04-21 Areca Technology Corp Disk array controller
US6718435B2 (en) 2001-08-14 2004-04-06 International Business Machines Corporation Method and system for migrating data in a raid logical drive migration
US7024586B2 (en) * 2002-06-24 2006-04-04 Network Appliance, Inc. Using file system information in raid data reconstruction and migration
US7139931B2 (en) * 2002-08-19 2006-11-21 Aristos Logic Corporation Method of controlling the system performance and reliability impact of hard disk drive rebuild
US7383381B1 (en) 2003-02-28 2008-06-03 Sun Microsystems, Inc. Systems and methods for configuring a storage virtualization environment
US7430568B1 (en) 2003-02-28 2008-09-30 Sun Microsystems, Inc. Systems and methods for providing snapshot capabilities in a storage virtualization environment
US7290168B1 (en) 2003-02-28 2007-10-30 Sun Microsystems, Inc. Systems and methods for providing a multi-path network switch system
US7236987B1 (en) 2003-02-28 2007-06-26 Sun Microsystems Inc. Systems and methods for providing a storage virtualization environment
US7146461B1 (en) 2003-07-01 2006-12-05 Veritas Operating Corporation Automated recovery from data corruption of data volumes in parity RAID storage systems
JP4354233B2 (ja) * 2003-09-05 2009-10-28 株式会社日立製作所 バックアップシステム及び方法
US7213103B2 (en) * 2004-04-22 2007-05-01 Apple Inc. Accessing data storage systems without waiting for read errors
US7430571B2 (en) * 2004-04-30 2008-09-30 Network Appliance, Inc. Extension of write anywhere file layout write allocation
US7490270B2 (en) * 2004-11-09 2009-02-10 Dell Products L.P. Method, system, and software for rebuilding a storage drive
US7334081B2 (en) * 2005-04-29 2008-02-19 Hitachi Global Storage Technologies Netherlands B.V. System and method for optimizing sequential XOR command performance
US7523146B2 (en) * 2005-06-21 2009-04-21 Apple Inc. Apparatus and method for peer-to-peer N-way synchronization in a decentralized environment
US8495015B2 (en) * 2005-06-21 2013-07-23 Apple Inc. Peer-to-peer syncing in a decentralized environment
US8205019B2 (en) * 2005-09-30 2012-06-19 Intel Corporation DMA transfers of sets of data and an exclusive or (XOR) of the sets of data
US7797670B2 (en) * 2006-04-14 2010-09-14 Apple Inc. Mirrored file system
US7661058B1 (en) * 2006-04-17 2010-02-09 Marvell International Ltd. Efficient raid ECC controller for raid systems
WO2007132452A2 (en) 2006-05-12 2007-11-22 Anobit Technologies Reducing programming error in memory devices
US8239735B2 (en) 2006-05-12 2012-08-07 Apple Inc. Memory Device with adaptive capacity
WO2007132457A2 (en) 2006-05-12 2007-11-22 Anobit Technologies Ltd. Combined distortion estimation and error correction coding for memory devices
CN103280239B (zh) 2006-05-12 2016-04-06 苹果公司 存储设备中的失真估计和消除
US7860826B2 (en) 2006-08-04 2010-12-28 Apple Inc. Method and system for using global equivalency sets to identify data during peer-to-peer synchronization
WO2008026203A2 (en) * 2006-08-27 2008-03-06 Anobit Technologies Estimation of non-linear distortion in memory devices
US7821826B2 (en) * 2006-10-30 2010-10-26 Anobit Technologies, Ltd. Memory cell readout using successive approximation
US7975192B2 (en) * 2006-10-30 2011-07-05 Anobit Technologies Ltd. Reading memory cells using multiple thresholds
US7822921B2 (en) * 2006-10-31 2010-10-26 Netapp, Inc. System and method for optimizing write operations in storage systems
US7924648B2 (en) * 2006-11-28 2011-04-12 Anobit Technologies Ltd. Memory power and performance management
US8151163B2 (en) 2006-12-03 2012-04-03 Anobit Technologies Ltd. Automatic defect management in memory devices
US7706182B2 (en) * 2006-12-03 2010-04-27 Anobit Technologies Ltd. Adaptive programming of analog memory cells using statistical characteristics
US7904672B2 (en) * 2006-12-08 2011-03-08 Sandforce, Inc. System and method for providing data redundancy after reducing memory writes
US7900102B2 (en) 2006-12-17 2011-03-01 Anobit Technologies Ltd. High-speed programming of memory devices
US7657769B2 (en) 2007-01-08 2010-02-02 Marcy M Scott N-way synchronization of data
US8151166B2 (en) 2007-01-24 2012-04-03 Anobit Technologies Ltd. Reduction of back pattern dependency effects in memory devices
US7751240B2 (en) * 2007-01-24 2010-07-06 Anobit Technologies Ltd. Memory device with negative thresholds
WO2008111058A2 (en) * 2007-03-12 2008-09-18 Anobit Technologies Ltd. Adaptive estimation of memory cell read thresholds
US8370715B2 (en) * 2007-04-12 2013-02-05 International Business Machines Corporation Error checking addressable blocks in storage
US8001320B2 (en) 2007-04-22 2011-08-16 Anobit Technologies Ltd. Command interface for memory devices
WO2008139441A2 (en) 2007-05-12 2008-11-20 Anobit Technologies Ltd. Memory device with internal signal processing unit
US8234545B2 (en) 2007-05-12 2012-07-31 Apple Inc. Data storage with incremental redundancy
US7917831B2 (en) * 2007-06-14 2011-03-29 Freescale Semiconductor, Inc. Optimization of storage device accesses in RAID systems
US7925936B1 (en) 2007-07-13 2011-04-12 Anobit Technologies Ltd. Memory device with non-uniform programming levels
US8259497B2 (en) * 2007-08-06 2012-09-04 Apple Inc. Programming schemes for multi-level analog memory cells
US8174905B2 (en) * 2007-09-19 2012-05-08 Anobit Technologies Ltd. Programming orders for reducing distortion in arrays of multi-level analog memory cells
US7773413B2 (en) * 2007-10-08 2010-08-10 Anobit Technologies Ltd. Reliable data storage in analog memory cells in the presence of temperature variations
US8000141B1 (en) 2007-10-19 2011-08-16 Anobit Technologies Ltd. Compensation for voltage drifts in analog memory cells
US8068360B2 (en) 2007-10-19 2011-11-29 Anobit Technologies Ltd. Reading analog memory cells using built-in multi-threshold commands
US8527819B2 (en) * 2007-10-19 2013-09-03 Apple Inc. Data storage in analog memory cell arrays having erase failures
US8270246B2 (en) * 2007-11-13 2012-09-18 Apple Inc. Optimized selection of memory chips in multi-chips memory devices
US8225181B2 (en) * 2007-11-30 2012-07-17 Apple Inc. Efficient re-read operations from memory devices
US8209588B2 (en) 2007-12-12 2012-06-26 Anobit Technologies Ltd. Efficient interference cancellation in analog memory cell arrays
US8456905B2 (en) * 2007-12-16 2013-06-04 Apple Inc. Efficient data storage in multi-plane memory devices
US8085586B2 (en) * 2007-12-27 2011-12-27 Anobit Technologies Ltd. Wear level estimation in analog memory cells
US8156398B2 (en) 2008-02-05 2012-04-10 Anobit Technologies Ltd. Parameter estimation based on error correction code parity check equations
US7924587B2 (en) 2008-02-21 2011-04-12 Anobit Technologies Ltd. Programming of analog memory cells using a single programming pulse per state transition
US7864573B2 (en) * 2008-02-24 2011-01-04 Anobit Technologies Ltd. Programming analog memory cells for reduced variance after retention
US8230300B2 (en) 2008-03-07 2012-07-24 Apple Inc. Efficient readout from analog memory cells using data compression
US8400858B2 (en) 2008-03-18 2013-03-19 Apple Inc. Memory device with reduced sense time readout
US8059457B2 (en) 2008-03-18 2011-11-15 Anobit Technologies Ltd. Memory device with multiple-accuracy read commands
JP5286956B2 (ja) * 2008-06-13 2013-09-11 富士通株式会社 制御方法、ディスクアレイ装置
US7995388B1 (en) 2008-08-05 2011-08-09 Anobit Technologies Ltd. Data storage using modified voltages
US7924613B1 (en) * 2008-08-05 2011-04-12 Anobit Technologies Ltd. Data storage in analog memory cells with protection against programming interruption
US8169825B1 (en) 2008-09-02 2012-05-01 Anobit Technologies Ltd. Reliable data storage in analog memory cells subjected to long retention periods
US8949684B1 (en) 2008-09-02 2015-02-03 Apple Inc. Segmented data storage
US8000135B1 (en) 2008-09-14 2011-08-16 Anobit Technologies Ltd. Estimation of memory cell read thresholds by sampling inside programming level distribution intervals
US8482978B1 (en) 2008-09-14 2013-07-09 Apple Inc. Estimation of memory cell read thresholds by sampling inside programming level distribution intervals
US8239734B1 (en) 2008-10-15 2012-08-07 Apple Inc. Efficient data storage in storage device arrays
US8261159B1 (en) 2008-10-30 2012-09-04 Apple, Inc. Data scrambling schemes for memory devices
US8208304B2 (en) * 2008-11-16 2012-06-26 Anobit Technologies Ltd. Storage at M bits/cell density in N bits/cell analog memory cell devices, M>N
US8248831B2 (en) * 2008-12-31 2012-08-21 Apple Inc. Rejuvenation of analog memory cells
US8397131B1 (en) 2008-12-31 2013-03-12 Apple Inc. Efficient readout schemes for analog memory cell devices
US8924661B1 (en) 2009-01-18 2014-12-30 Apple Inc. Memory system including a controller and processors associated with memory devices
US8228701B2 (en) 2009-03-01 2012-07-24 Apple Inc. Selective activation of programming schemes in analog memory cell arrays
US8259506B1 (en) 2009-03-25 2012-09-04 Apple Inc. Database of memory read thresholds
US8832354B2 (en) * 2009-03-25 2014-09-09 Apple Inc. Use of host system resources by memory controller
US8238157B1 (en) 2009-04-12 2012-08-07 Apple Inc. Selective re-programming of analog memory cells
US8479080B1 (en) 2009-07-12 2013-07-02 Apple Inc. Adaptive over-provisioning in memory systems
US8495465B1 (en) 2009-10-15 2013-07-23 Apple Inc. Error correction coding over multiple memory pages
US8281218B1 (en) 2009-11-02 2012-10-02 Western Digital Technologies, Inc. Data manipulation engine
US8677054B1 (en) 2009-12-16 2014-03-18 Apple Inc. Memory management schemes for non-volatile memory devices
US8694814B1 (en) 2010-01-10 2014-04-08 Apple Inc. Reuse of host hibernation storage space by memory controller
US8572311B1 (en) 2010-01-11 2013-10-29 Apple Inc. Redundant data storage in multi-die memory systems
US8694853B1 (en) 2010-05-04 2014-04-08 Apple Inc. Read commands for reading interfering memory cells
US8572423B1 (en) 2010-06-22 2013-10-29 Apple Inc. Reducing peak current in memory systems
US8595591B1 (en) 2010-07-11 2013-11-26 Apple Inc. Interference-aware assignment of programming levels in analog memory cells
US9104580B1 (en) 2010-07-27 2015-08-11 Apple Inc. Cache memory for hybrid disk drives
US8767459B1 (en) 2010-07-31 2014-07-01 Apple Inc. Data storage in analog memory cells across word lines using a non-integer number of bits per cell
US8856475B1 (en) 2010-08-01 2014-10-07 Apple Inc. Efficient selection of memory blocks for compaction
US8694854B1 (en) 2010-08-17 2014-04-08 Apple Inc. Read threshold setting based on soft readout statistics
US9021181B1 (en) 2010-09-27 2015-04-28 Apple Inc. Memory management for unifying memory cell conditions by using maximum time intervals
CN104040515B (zh) 2011-09-30 2018-05-11 英特尔公司 在逻辑驱动器模型下呈现直接存取的存储设备
US8762771B2 (en) * 2011-11-04 2014-06-24 Lsi Corporation Method for completing write operations to a RAID drive pool with an abnormally slow drive in a timely fashion
KR101925383B1 (ko) 2012-07-23 2018-12-05 삼성전자주식회사 불휘발성 메모리 장치 및 그것의 데이터 관리 방법
EP2915049B1 (en) * 2012-10-30 2020-03-04 Hewlett-Packard Enterprise Development LP Smart memory buffers
US9891993B2 (en) 2014-05-23 2018-02-13 International Business Machines Corporation Managing raid parity stripe contention
US20160018995A1 (en) * 2014-07-17 2016-01-21 Lsi Corporation Raid system for processing i/o requests utilizing xor commands
US9524107B2 (en) 2014-07-30 2016-12-20 Avago Technologies General Ip (Singapore) Pte. Ltd. Host-based device drivers for enhancing operations in redundant array of independent disks systems
US10761929B2 (en) * 2017-05-25 2020-09-01 Western Digital Technologies, Inc. Data storage drive rebuild with parity generation offload using peer-to-peer data transfers
US10649843B2 (en) 2018-08-03 2020-05-12 Western Digital Technologies, Inc. Storage systems with peer data scrub
US10824526B2 (en) 2018-08-03 2020-11-03 Western Digital Technologies, Inc. Using failed storage device in peer-to-peer storage system to perform storage-centric task
US10901848B2 (en) 2018-08-03 2021-01-26 Western Digital Technologies, Inc. Storage systems with peer data recovery
US10831603B2 (en) 2018-08-03 2020-11-10 Western Digital Technologies, Inc. Rebuild assist using failed storage device
US10877810B2 (en) 2018-09-29 2020-12-29 Western Digital Technologies, Inc. Object storage system with metadata operation priority processing
US11182258B2 (en) 2019-01-04 2021-11-23 Western Digital Technologies, Inc. Data rebuild using dynamic peer work allocation
CN111857549B (zh) * 2019-04-29 2024-08-16 伊姆西Ip控股有限责任公司 用于管理数据的方法、设备和计算机程序产品
US11556416B2 (en) 2021-05-05 2023-01-17 Apple Inc. Controlling memory readout reliability and throughput by adjusting distance between read thresholds
US11847342B2 (en) 2021-07-28 2023-12-19 Apple Inc. Efficient transfer of hard data and confidence levels in reading a nonvolatile memory

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208813A (en) * 1990-10-23 1993-05-04 Array Technology Corporation On-line reconstruction of a failed redundant array system
US5191584A (en) * 1991-02-20 1993-03-02 Micropolis Corporation Mass storage array with efficient parity calculation
US5313626A (en) * 1991-12-17 1994-05-17 Jones Craig S Disk drive array with efficient background rebuilding
US5506977A (en) * 1991-12-17 1996-04-09 Dell Usa, L.P. Method and controller for minimizing reads during partial stripe write operations to a disk drive
US5315602A (en) * 1992-08-12 1994-05-24 Digital Equipment Corporation Optimized stripe detection for redundant arrays of disk drives
US5594862A (en) * 1994-07-20 1997-01-14 Emc Corporation XOR controller for a storage subsystem

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109857584A (zh) * 2017-11-30 2019-06-07 慧荣科技股份有限公司 于记忆装置进行访问控制的方法、记忆装置和其控制器
US11294589B2 (en) 2017-11-30 2022-04-05 Silicon Motion, Inc. Method for performing access control in a memory device, associated memory device and controller thereof
CN109857584B (zh) * 2017-11-30 2022-09-30 慧荣科技股份有限公司 于记忆装置进行访问控制的方法、记忆装置和其控制器

Also Published As

Publication number Publication date
KR100255847B1 (ko) 2000-05-01
US5742752A (en) 1998-04-21

Similar Documents

Publication Publication Date Title
KR970049546A (ko) 레이드(raid) 제어기에서의 스트라이프 기록 방법
US9898216B2 (en) Data storage system and specific command execution method thereof
DE69324974D1 (de) Optimierte Stricherkennung für redundante Speicherplattenanordnung
JPH08212018A (ja) Ｒａｉｄを動的に拡張する方法及び装置
JP2005100259A5 (ko)
DE69943066D1 (de) System und Verfahren zum Verbessern von Programmstartzeit
US20150019808A1 (en) Hybrid storage control system and method
JP6975202B2 (ja) 瞬断からの回復処理方法及び装置、並びにコンピュータ読み取り可能な記憶媒体
DE69532703D1 (de) Speicherplattenanordnungsuntersystem und Datenerzeugungsverfahren dazu
MY113983A (en) An improved data storage device and method of operation
JP2006252165A (ja) ディスクアレイ装置、及びコンピュータシステム
JPH10320130A (ja) ディスク処理装置および記録媒体
KR100274742B1 (ko) 하드디스크드라이브의초기화복사방법및그복사장치
KR100364895B1 (ko) 데이터 액세스 제어 방법 및 시스템
EP0905693A4 (en) DEVICE AND METHOD FOR RECORDING DATA AND DEVICE AND METHOD FOR DRIVE STACK
JPH04111113A (ja) ハードディスクエミュレータ
DE69224412D1 (de) Aufzeichnung von Informationen, die von einem Hauptrechner über einen SCSI-Bus gesendet wurden
CN104461394A (zh) 一种raid及从其读取数据的方法
JP3718387B2 (ja) ディスクアレイ制御装置
JP2001101076A (ja) ディスク制御装置
JPH1049313A (ja) 拡張形ディスクアレイ装置
JP2000357060A (ja) ディスクアレイ装置
JPH0744331A (ja) ディスクアレイ装置およびその制御方法
JPH07141123A (ja) アレイ型ディスクシステムおよびアレイ型ディスクシステムの制御方法
JPH0628779A (ja) ディスク装置におけるデータ記録制御方法

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20050124

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee