IN2015DN02706A - - Google Patents

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Publication number
IN2015DN02706A
IN2015DN02706A IN2706DEN2015A IN2015DN02706A IN 2015DN02706 A IN2015DN02706 A IN 2015DN02706A IN 2706DEN2015 A IN2706DEN2015 A IN 2706DEN2015A IN 2015DN02706 A IN2015DN02706 A IN 2015DN02706A
Authority
IN
India
Prior art keywords
disk drive
data storage
data
failing
storage subsystem
Prior art date
Application number
Inventor
Anthony J ; Floeder
Derek J ; Anderson
Original Assignee
Compellent Technologies
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 Compellent Technologies filed Critical Compellent Technologies
Publication of IN2015DN02706A publication Critical patent/IN2015DN02706A/en

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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
    • G06F11/08—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
    • G06F11/1088—Reconstruction on already foreseen single or plurality of spare disks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/004—Error avoidance
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/008—Reliability or availability analysis
    • 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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • 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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0727—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in a storage system, e.g. in a DASD or network based storage system
    • 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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • 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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/076—Error or fault detection not based on redundancy by exceeding limits by exceeding a count or rate limit, e.g. word- or bit count limit
    • 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
    • G06F11/1092—Rebuilding, e.g. when physically replacing a failing disk
    • 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
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2069—Management of state, configuration or failover
    • 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1448—Management of the data involved in backup or backup restore
    • 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
    • G06F2211/1088—Scrubbing in RAID systems with parity

Abstract

A method for surveying a data storage subsystem for latent errors before a failing disk drive of the data storage subsystem fails and recovering unreadable data usable to reconstruct data of the failing disk drive. The method includes determining that a disk drive of a plurality of disk drives of the data storage subsystem meets a threshold for being identified as a failing disk drive and prior to failure of the failing disk drive, surveying at least a portion of the data on the remaining plurality of disk drives to identify data storage areas with latent errors. The identified data storage areas may be reconstructed utilizing , at least in part , data stored on the failing disk drive.
IN2706DEN2015 2012-12-06 2013-12-05 IN2015DN02706A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/706,553 US9135096B2 (en) 2012-12-06 2012-12-06 RAID surveyor
PCT/US2013/073347 WO2014089311A2 (en) 2012-12-06 2013-12-05 Raid surveyor

Publications (1)

Publication Number Publication Date
IN2015DN02706A true IN2015DN02706A (en) 2015-09-04

Family

ID=50882388

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2706DEN2015 IN2015DN02706A (en) 2012-12-06 2013-12-05

Country Status (5)

Country Link
US (2) US9135096B2 (en)
EP (1) EP2929435B1 (en)
CN (1) CN104813290B (en)
IN (1) IN2015DN02706A (en)
WO (1) WO2014089311A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9104604B2 (en) * 2013-02-26 2015-08-11 International Business Machines Corporation Preventing unrecoverable errors during a disk regeneration in a disk array
CN106557389B (en) * 2015-09-29 2019-03-08 成都华为技术有限公司 A kind of slow disk detection method and device
CN106250278A (en) * 2016-08-04 2016-12-21 深圳市泽云科技有限公司 The data of magnetic disk array restoration methods that an a kind of key performs
US10678643B1 (en) * 2017-04-26 2020-06-09 EMC IP Holding Company LLC Splitting a group of physical data storage drives into partnership groups to limit the risk of data loss during drive rebuilds in a mapped RAID (redundant array of independent disks) data storage system
US10210045B1 (en) * 2017-04-27 2019-02-19 EMC IP Holding Company LLC Reducing concurrency bottlenecks while rebuilding a failed drive in a data storage system
US10346247B1 (en) * 2017-04-27 2019-07-09 EMC IP Holding Company LLC Adjustable error sensitivity for taking disks offline in a mapped RAID storage array
CN109725838B (en) * 2017-10-27 2022-02-25 伊姆西Ip控股有限责任公司 Method, apparatus and computer readable medium for managing a plurality of discs
US10691543B2 (en) 2017-11-14 2020-06-23 International Business Machines Corporation Machine learning to enhance redundant array of independent disks rebuilds
US10740181B2 (en) * 2018-03-06 2020-08-11 Western Digital Technologies, Inc. Failed storage device rebuild method
CN110413454B (en) * 2018-04-28 2022-04-05 华为技术有限公司 Data reconstruction method and device based on storage array and storage medium
CN111124264B (en) * 2018-10-31 2023-10-27 伊姆西Ip控股有限责任公司 Method, apparatus and computer program product for reconstructing data
CN109873985A (en) * 2019-03-01 2019-06-11 苏州星奥达科技有限公司 A kind of intelligent backup restoration methods of pair of video platform cluster
US11182358B2 (en) 2019-07-18 2021-11-23 International Business Machines Corporation Performance enhanced data scrubbing
CN115206406A (en) 2021-04-12 2022-10-18 伊姆西Ip控股有限责任公司 Method and device for managing redundant array of independent disks

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US6934904B2 (en) * 2001-04-30 2005-08-23 Sun Microsystems, Inc. Data integrity error handling in a redundant storage array
US7017107B2 (en) * 2001-04-30 2006-03-21 Sun Microsystems, Inc. Storage array employing scrubbing operations at the disk-controller level
US6871263B2 (en) * 2001-08-28 2005-03-22 Sedna Patent Services, Llc Method and apparatus for striping data onto a plurality of disk drives
US7363546B2 (en) * 2002-07-31 2008-04-22 Sun Microsystems, Inc. Latent fault detector
EP1668486A2 (en) 2003-08-14 2006-06-14 Compellent Technologies Virtual disk drive system and method
US7590801B1 (en) * 2004-02-12 2009-09-15 Netapp, Inc. Identifying suspect disks
US7313721B2 (en) * 2004-06-21 2007-12-25 Dot Hill Systems Corporation Apparatus and method for performing a preemptive reconstruct of a fault-tolerant RAID array
US7574623B1 (en) 2005-04-29 2009-08-11 Network Appliance, Inc. Method and system for rapidly recovering data from a “sick” disk in a RAID disk group
US8145941B2 (en) 2006-10-31 2012-03-27 Hewlett-Packard Development Company, L.P. Detection and correction of block-level data corruption in fault-tolerant data-storage systems
US20090055682A1 (en) * 2007-07-18 2009-02-26 Panasas Inc. Data storage systems and methods having block group error correction for repairing unrecoverable read errors
US7971093B1 (en) * 2008-01-16 2011-06-28 Network Appliance, Inc. Apparatus and method to proactively address hard disk drive inefficiency and failure
US8463991B2 (en) 2010-09-28 2013-06-11 Pure Storage Inc. Intra-device data protection in a raid array
US8689040B2 (en) 2010-10-01 2014-04-01 Lsi Corporation Method and system for data reconstruction after drive failures

Also Published As

Publication number Publication date
CN104813290A (en) 2015-07-29
US20150347232A1 (en) 2015-12-03
US20140164849A1 (en) 2014-06-12
CN104813290B (en) 2018-09-21
EP2929435A4 (en) 2016-11-02
WO2014089311A2 (en) 2014-06-12
US10025666B2 (en) 2018-07-17
WO2014089311A3 (en) 2014-07-31
US9135096B2 (en) 2015-09-15
EP2929435B1 (en) 2020-03-25
EP2929435A2 (en) 2015-10-14

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