JP6947670B2 - 仮想装置階層を利用した複数のメモリ装置を含む仮想装置に対する客体の格納及び読み取り方法とこれを用いたストレージ装置 - Google Patents

仮想装置階層を利用した複数のメモリ装置を含む仮想装置に対する客体の格納及び読み取り方法とこれを用いたストレージ装置 Download PDF

Info

Publication number
JP6947670B2
JP6947670B2 JP2018052379A JP2018052379A JP6947670B2 JP 6947670 B2 JP6947670 B2 JP 6947670B2 JP 2018052379 A JP2018052379 A JP 2018052379A JP 2018052379 A JP2018052379 A JP 2018052379A JP 6947670 B2 JP6947670 B2 JP 6947670B2
Authority
JP
Japan
Prior art keywords
data
devices
parity
virtual device
hierarchy
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.)
Active
Application number
JP2018052379A
Other languages
English (en)
Japanese (ja)
Other versions
JP2018156656A5 (enExample
JP2018156656A (ja
Inventor
ヤン ソク キ
ヤン ソク キ
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of JP2018156656A publication Critical patent/JP2018156656A/ja
Publication of JP2018156656A5 publication Critical patent/JP2018156656A5/ja
Application granted granted Critical
Publication of JP6947670B2 publication Critical patent/JP6947670B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1068Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices in sector programmable memories, e.g. flash disk
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • G06F11/108Parity data distribution in semiconductor storages, e.g. in SSD
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0602Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/061Improving I/O performance
    • G06F3/0611Improving I/O performance in relation to response time
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0602Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614Improving the reliability of storage systems
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0602Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614Improving the reliability of storage systems
    • G06F3/0619Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0602Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/062Securing storage systems
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638Organizing or formatting or addressing of data
    • G06F3/064Management of blocks
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/065Replication mechanisms
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0662Virtualisation aspects
    • G06F3/0664Virtualisation aspects at device level, e.g. emulation of a storage device or system
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0668Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671In-line storage system
    • G06F3/0683Plurality of storage devices
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0668Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671In-line storage system
    • G06F3/0683Plurality of storage devices
    • G06F3/0688Non-volatile semiconductor memory arrays
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0668Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671In-line storage system
    • G06F3/0683Plurality of storage devices
    • G06F3/0689Disk arrays, e.g. RAID, JBOD
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C7/00Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/24Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13Linear codes
    • H03M13/15Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H03M13/151Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
    • H03M13/154Error and erasure correction, e.g. by using the error and erasure locator or Forney polynomial
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/373Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with erasure correction and erasure determination, e.g. for packet loss recovery or setting of erasures for the decoding of Reed-Solomon codes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/3761Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 using code combining, i.e. using combining of codeword portions which may have been transmitted separately, e.g. Digital Fountain codes, Raptor codes or Luby Transform [LT] codes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/52Protection of memory contents; Detection of errors in memory contents
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13Linear codes
    • H03M13/15Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H03M13/151Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
    • H03M13/1515Reed-Solomon codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Probability & Statistics with Applications (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Computer Security & Cryptography (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Debugging And Monitoring (AREA)
JP2018052379A 2017-03-20 2018-03-20 仮想装置階層を利用した複数のメモリ装置を含む仮想装置に対する客体の格納及び読み取り方法とこれを用いたストレージ装置 Active JP6947670B2 (ja)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201762474039P 2017-03-20 2017-03-20
US62/474,039 2017-03-20
US201762561625P 2017-09-21 2017-09-21
US62/561,625 2017-09-21
US201762562219P 2017-09-22 2017-09-22
US62/562,219 2017-09-22
US15/876,028 US10795760B2 (en) 2017-03-20 2018-01-19 Key value SSD
US15/876,028 2018-01-19

Publications (3)

Publication Number Publication Date
JP2018156656A JP2018156656A (ja) 2018-10-04
JP2018156656A5 JP2018156656A5 (enExample) 2021-04-01
JP6947670B2 true JP6947670B2 (ja) 2021-10-13

Family

ID=63520099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018052379A Active JP6947670B2 (ja) 2017-03-20 2018-03-20 仮想装置階層を利用した複数のメモリ装置を含む仮想装置に対する客体の格納及び読み取り方法とこれを用いたストレージ装置

Country Status (5)

Country Link
US (2) US10795760B2 (enExample)
JP (1) JP6947670B2 (enExample)
KR (1) KR102368935B1 (enExample)
CN (1) CN108632029B (enExample)
TW (1) TWI734900B (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10284234B1 (en) * 2017-07-19 2019-05-07 EMC IP Holding Company LLC Facilitation of data deletion for distributed erasure coding
CN112394874B (zh) 2019-08-13 2024-08-20 华为技术有限公司 一种键值kv的存储方法、装置及存储设备
US10998919B2 (en) * 2019-10-02 2021-05-04 Microsoft Technology Licensing, Llc Coded stream processing
US11816342B2 (en) * 2020-06-10 2023-11-14 Samsung Electronics Co., Ltd. Systems and methods for distributed in-storage computation-conscious erasure coding
US20220011948A1 (en) * 2020-07-08 2022-01-13 Samsung Electronics Co., Ltd. Key sorting between key-value solid state drives and hosts
US20220214810A1 (en) * 2021-03-26 2022-07-07 Ian F. Adams Near-data processing in sharded storage environments
CN114282067B (zh) * 2021-11-18 2025-01-17 厦门市美亚柏科信息股份有限公司 一种基于时空网格的数据过滤方法、终端设备及存储介质
US11853607B2 (en) 2021-12-22 2023-12-26 Western Digital Technologies, Inc. Optimizing flash memory utilization for NVMe KV pair storage
US11817883B2 (en) 2021-12-27 2023-11-14 Western Digital Technologies, Inc. Variable length ECC code according to value length in NVMe key value pair devices
US11733876B2 (en) 2022-01-05 2023-08-22 Western Digital Technologies, Inc. Content aware decoding in KV devices
KR102712808B1 (ko) * 2022-03-02 2024-10-02 인하대학교 산학협력단 비디오 스토리지 시스템에서 성능 저하 읽기를 위한 i/o 대역폭 최소화를 위한 중복 선택 방법 및 장치
US11853160B2 (en) 2022-05-27 2023-12-26 Western Digital Technologies, Inc. Variable length ECC code according to data entropy in NVMe key value pair devices
KR20240001414A (ko) 2022-06-27 2024-01-03 삼성전자주식회사 복수의 ssd를 포함하는 스토리지 시스템 및 그것의 운용 방법

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6754773B2 (en) 2001-01-29 2004-06-22 Snap Appliance, Inc. Data engine with metadata processor
US7769709B2 (en) * 2004-09-09 2010-08-03 Microsoft Corporation Method, system, and apparatus for creating an archive routine for protecting data in a data protection system
JP4805660B2 (ja) 2005-02-08 2011-11-02 富士通株式会社 ディスクライト抜け検出装置
US7533330B2 (en) 2005-06-27 2009-05-12 Seagate Technology Llc Redundancy for storage data structures
KR100753831B1 (ko) * 2005-12-08 2007-08-31 한국전자통신연구원 객체 기반 스토리지 시스템에서 고속의 객체 입출력 처리장치 및 방법
EP2396717A1 (en) * 2009-02-11 2011-12-21 Infinidat Ltd Virtualized storage system and method of operating it
US8751860B2 (en) * 2009-06-03 2014-06-10 Micron Technology, Inc. Object oriented memory in solid state devices
US8819452B2 (en) 2009-11-25 2014-08-26 Cleversafe, Inc. Efficient storage of encrypted data in a dispersed storage network
US20110145517A1 (en) * 2009-12-10 2011-06-16 International Business Machines Corporation Dynamic reuse and reconfiguration of logical data objects in a virtual tape system
US8856593B2 (en) 2010-04-12 2014-10-07 Sandisk Enterprise Ip Llc Failure recovery using consensus replication in a distributed flash memory system
US8775868B2 (en) 2010-09-28 2014-07-08 Pure Storage, Inc. Adaptive RAID for an SSD environment
US8504535B1 (en) * 2010-12-20 2013-08-06 Amazon Technologies, Inc. Erasure coding and redundant replication
TWI510069B (zh) * 2011-09-29 2015-11-21 Walton Advanced Eng Inc Storage device with image sharing and method for executing the same
JP6279560B2 (ja) * 2012-06-08 2018-02-14 株式会社Nttドコモ Fec技法を使用したキー値に基づく記憶システムに対する低遅延アクセスのための方法、装置、及びコンピュータ読み取り可能な記憶媒体
US8799746B2 (en) * 2012-06-13 2014-08-05 Caringo, Inc. Erasure coding and replication in storage clusters
US8949180B1 (en) 2012-06-28 2015-02-03 Emc International Company Replicating key-value pairs in a continuous data protection system
US8904047B1 (en) 2012-06-29 2014-12-02 Emc Corporation Cloud capable storage system with high perormance nosql key-value pair operating environment
CN103577274B (zh) 2012-07-31 2016-07-06 国际商业机器公司 管理存储器阵列的方法和装置
US9460099B2 (en) 2012-11-13 2016-10-04 Amazon Technologies, Inc. Dynamic selection of storage tiers
CN103902632B (zh) 2012-12-31 2018-01-02 华为技术有限公司 键值存储系统中构建文件系统的方法、装置及电子设备
US9047211B2 (en) 2013-03-15 2015-06-02 SanDisk Technologies, Inc. Managing data reliability
TW201443647A (zh) * 2013-05-08 2014-11-16 Enmotus Inc 具有資料管理的層疊式資料儲存系統及其操作方法
US9569517B1 (en) 2013-11-27 2017-02-14 Google Inc. Fault tolerant distributed key-value storage
US10735137B2 (en) 2016-03-15 2020-08-04 ClineHair Commercial Endeavors Distributed storage system data management and security
US9639268B2 (en) 2014-08-21 2017-05-02 Datrium, Inc. Distributed data storage system with key-based addressing
US9438426B2 (en) 2014-10-03 2016-09-06 Seagate Technology Llc Key-value data storage device with hybrid architecture
US9378088B1 (en) 2014-12-30 2016-06-28 Datadirect Networks, Inc. Method and system for reclamation of distributed dynamically generated erasure groups for data migration between high performance computing architectures and data storage using non-deterministic data addressing
US10353787B2 (en) 2015-02-26 2019-07-16 Agency For Science, Technology And Science Data stripping, allocation and reconstruction
US10761758B2 (en) 2015-12-21 2020-09-01 Quantum Corporation Data aware deduplication object storage (DADOS)
CN106662983B (zh) 2015-12-31 2019-04-12 华为技术有限公司 分布式存储系统中的数据重建的方法、装置和系统
US10019317B2 (en) 2016-04-25 2018-07-10 Nexenta Systems, Inc. Parity protection for data chunks in an object storage system
US10542089B2 (en) 2017-03-10 2020-01-21 Toshiba Memory Corporation Large scale implementation of a plurality of open channel solid state drives
US11275762B2 (en) 2017-03-20 2022-03-15 Samsung Electronics Co., Ltd. System and method for hybrid data reliability for object storage devices

Also Published As

Publication number Publication date
CN108632029B (zh) 2022-05-17
KR102368935B1 (ko) 2022-03-02
TWI734900B (zh) 2021-08-01
US20180267854A1 (en) 2018-09-20
CN108632029A (zh) 2018-10-09
US11288119B2 (en) 2022-03-29
TW201835810A (zh) 2018-10-01
JP2018156656A (ja) 2018-10-04
US10795760B2 (en) 2020-10-06
KR20180106867A (ko) 2018-10-01
US20200133770A1 (en) 2020-04-30

Similar Documents

Publication Publication Date Title
JP6947670B2 (ja) 仮想装置階層を利用した複数のメモリ装置を含む仮想装置に対する客体の格納及び読み取り方法とこれを用いたストレージ装置
CN102667738B (zh) 具有多个raid组分条的内存系统及其方法
US9921912B1 (en) Using spare disk drives to overprovision raid groups
KR101824286B1 (ko) 적응적 지오메트리를 구비한 raid 어레이에서의 복원 판독
US8601347B1 (en) Flash memory device and storage control method
US9606866B2 (en) Method of, and apparatus for, improved data recovery in a storage system
JP2022512064A (ja) 様々なデータ冗長性スキームを備えた、システムにおける利用可能なストレージ空間を改善すること
KR102460568B1 (ko) 대형 키 밸류 객체들을 저장하는 시스템 및 방법
US9543988B2 (en) Adaptively strengthening ECC for solid state cache
JP2018508073A (ja) データ除去、割り当て、及び再構築
KR20170092333A (ko) Raid-6 데이터 저장 장치와 이를 포함하는 데이터 처리 시스템
US10409682B1 (en) Distributed RAID system
US10467074B2 (en) Conditional journal for storage class memory devices
KR20180013771A (ko) 가중된 데이터 스트라이핑
CN109739777A (zh) 本地与分布式协同设计的可靠闪存存储方法及系统
KR102867630B1 (ko) 메모리 시스템 내 데이터를 보호하는 장치 및 방법
US20180307427A1 (en) Storage control apparatus and storage control method
US11055190B1 (en) System and method for facilitating storage system operation with global mapping to provide maintenance without a service interrupt
US20150199236A1 (en) Multi-level disk failure protection
US20220398156A1 (en) Distributed multi-level protection in a hyper-converged infrastructure
US11592994B2 (en) Providing preferential treatment to metadata over user data
US20250208950A1 (en) Memory maintenance operations
US12468601B1 (en) Load balancing for erasure coding with multiple parities
US11036418B2 (en) Fully replacing an existing RAID group of devices with a new RAID group of devices
CN120144352A (zh) 一种数据保护方法及装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180605

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210217

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210217

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20210217

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20210219

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210518

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210804

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20210824

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210916

R150 Certificate of patent or registration of utility model

Ref document number: 6947670

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250