WO2006052888A8 - Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method - Google Patents

Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method

Info

Publication number
WO2006052888A8
WO2006052888A8 PCT/US2005/040291 US2005040291W WO2006052888A8 WO 2006052888 A8 WO2006052888 A8 WO 2006052888A8 US 2005040291 W US2005040291 W US 2005040291W WO 2006052888 A8 WO2006052888 A8 WO 2006052888A8
Authority
WO
WIPO (PCT)
Prior art keywords
storage devices
variously sized
tolerant
storage system
dynamically expandable
Prior art date
Application number
PCT/US2005/040291
Other languages
French (fr)
Other versions
WO2006052888A2 (en
WO2006052888A3 (en
Inventor
Geoffrey S Barrall
Original Assignee
Trusted Data Corp
Geoffrey S Barrall
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 Trusted Data Corp, Geoffrey S Barrall filed Critical Trusted Data Corp
Priority to EP05824178A priority Critical patent/EP1825372A2/en
Priority to JP2007540136A priority patent/JP4950897B2/en
Priority to CA2590361A priority patent/CA2590361C/en
Priority to AU2005304759A priority patent/AU2005304759B2/en
Publication of WO2006052888A2 publication Critical patent/WO2006052888A2/en
Publication of WO2006052888A3 publication Critical patent/WO2006052888A3/en
Publication of WO2006052888A8 publication Critical patent/WO2006052888A8/en

Links

Classifications

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    • 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
    • G06F11/2094—Redundant storage or storage space
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    • 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
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    • 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
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    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
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    • G06F3/0683—Plurality of storage devices
    • G06F3/0689—Disk arrays, e.g. RAID, JBOD
    • G—PHYSICS
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    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
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    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
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    • 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
    • G06F11/2087—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 with a common controller
    • 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
    • G06F2211/1004—Adaptive RAID, i.e. RAID system adapts to changing circumstances, e.g. RAID1 becomes RAID5 as disks fill up
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • G06F2211/10—Indexing scheme relating to G06F11/10
    • G06F2211/1002—Indexing scheme relating to G06F11/1076
    • G06F2211/1023—Different size disks, i.e. non uniform size of disks in RAID systems with parity
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    • G06F2211/1002—Indexing scheme relating to G06F11/1076
    • G06F2211/1028—Distributed, i.e. distributed RAID systems with parity
    • G—PHYSICS
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    • G11B2220/00—Record carriers by type
    • G11B2220/40—Combinations of multiple record carriers
    • G11B2220/41—Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
    • G11B2220/415—Redundant array of inexpensive disks [RAID] systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/60—Solid state media
    • G11B2220/65—Solid state media wherein solid state memory is used for storing indexing information or metadata

Abstract

A dynamically expandable and contractible fault-tolerant storage system permits variously sized storage devices. Data is stored redundantly across one or more storage devices if possible. The layout of data across the one or more storage devices is automatically reconfigured as storage devices are added or removed in order to provide an appropriate level of redundancy for the data to the extent possible. A hash-based compression technique may be used to reduce storage consumption. Techniques for freeing unused storage blocks are also disclosed.
PCT/US2005/040291 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method WO2006052888A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05824178A EP1825372A2 (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method
JP2007540136A JP4950897B2 (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault tolerant storage system and method enabling storage devices of various sizes
CA2590361A CA2590361C (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method
AU2005304759A AU2005304759B2 (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US62549504P 2004-11-05 2004-11-05
US60/625,495 2004-11-05
US71876805P 2005-09-20 2005-09-20
US60/718,768 2005-09-20

Publications (3)

Publication Number Publication Date
WO2006052888A2 WO2006052888A2 (en) 2006-05-18
WO2006052888A3 WO2006052888A3 (en) 2006-11-09
WO2006052888A8 true WO2006052888A8 (en) 2006-12-28

Family

ID=36203290

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/US2005/040175 WO2006052830A2 (en) 2004-11-05 2005-11-04 Storage system condition indicator and method
PCT/US2005/040174 WO2006052829A2 (en) 2004-11-05 2005-11-04 Dynamically upgradeable fault-tolerant storage system permitting variously sized storage devices and method
PCT/US2005/039795 WO2006050455A2 (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system with virtual hot spare
PCT/US2005/040291 WO2006052888A2 (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system permitting variously sized storage devices and method

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/US2005/040175 WO2006052830A2 (en) 2004-11-05 2005-11-04 Storage system condition indicator and method
PCT/US2005/040174 WO2006052829A2 (en) 2004-11-05 2005-11-04 Dynamically upgradeable fault-tolerant storage system permitting variously sized storage devices and method
PCT/US2005/039795 WO2006050455A2 (en) 2004-11-05 2005-11-04 Dynamically expandable and contractible fault-tolerant storage system with virtual hot spare

Country Status (8)

Country Link
US (5) US7818531B2 (en)
EP (4) EP1825373A2 (en)
JP (5) JP5055125B2 (en)
KR (1) KR101146484B1 (en)
CN (2) CN101872319A (en)
AU (2) AU2005304792B2 (en)
CA (2) CA2590875C (en)
WO (4) WO2006052830A2 (en)

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WO2006052830A2 (en) 2006-05-18
US20110035565A1 (en) 2011-02-10
WO2006050455A3 (en) 2006-09-21
US20060129875A1 (en) 2006-06-15
US20060143380A1 (en) 2006-06-29
US8156303B2 (en) 2012-04-10
WO2006052829A3 (en) 2006-10-19
AU2005304759B2 (en) 2012-05-17
JP2008519359A (en) 2008-06-05
WO2006050455A2 (en) 2006-05-11
JP5055125B2 (en) 2012-10-24
EP1815337B1 (en) 2013-05-15
WO2006052888A2 (en) 2006-05-18
AU2005304792A1 (en) 2006-05-18
JP2008519356A (en) 2008-06-05
US20060174157A1 (en) 2006-08-03
JP4950897B2 (en) 2012-06-13
US9043639B2 (en) 2015-05-26
CA2590875C (en) 2011-09-13
WO2006052888A3 (en) 2006-11-09
CA2590361C (en) 2012-01-03
CA2590361A1 (en) 2006-05-18
US7814273B2 (en) 2010-10-12
EP1815340A2 (en) 2007-08-08
WO2006052829A2 (en) 2006-05-18
KR20070111450A (en) 2007-11-21
JP5116151B2 (en) 2013-01-09
AU2005304792B2 (en) 2010-07-08
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