WO2007081581A3 - Methods and apparatus for reconfiguring a storage system - Google Patents

Methods and apparatus for reconfiguring a storage system Download PDF

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Publication number
WO2007081581A3
WO2007081581A3 PCT/US2006/049593 US2006049593W WO2007081581A3 WO 2007081581 A3 WO2007081581 A3 WO 2007081581A3 US 2006049593 W US2006049593 W US 2006049593W WO 2007081581 A3 WO2007081581 A3 WO 2007081581A3
Authority
WO
WIPO (PCT)
Prior art keywords
oas
host
path
storage devices
content
Prior art date
Application number
PCT/US2006/049593
Other languages
French (fr)
Other versions
WO2007081581A2 (en
Inventor
Mikhail Zelikov
Stephen J Todd
Jeffrey A Brown
James W Espy
Original Assignee
Emc Corp
Mikhail Zelikov
Stephen J Todd
Jeffrey A Brown
James W Espy
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
Priority claimed from US11/324,728 external-priority patent/US7529972B2/en
Priority claimed from US11/324,639 external-priority patent/US20070157002A1/en
Application filed by Emc Corp, Mikhail Zelikov, Stephen J Todd, Jeffrey A Brown, James W Espy filed Critical Emc Corp
Priority to EP06849270A priority Critical patent/EP1969454A2/en
Priority to JP2008548770A priority patent/JP2009522656A/en
Publication of WO2007081581A2 publication Critical patent/WO2007081581A2/en
Publication of WO2007081581A3 publication Critical patent/WO2007081581A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • G06F3/0661—Format or protocol conversion arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614—Improving the reliability of storage systems
    • G06F3/0617—Improving the reliability of storage systems in relation to availability
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0629—Configuration or reconfiguration of storage systems
    • G06F3/0635—Configuration or reconfiguration of storage systems by changing the path, e.g. traffic rerouting, path reconfiguration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
    • 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
    • G06F11/2089—Redundant storage control functionality
    • G06F11/2092—Techniques of failing over between control units

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Hardware Redundancy (AREA)

Abstract

One embodiment relates to a computer system comprising at least one host, at least one object addressable storage (OAS) system and at least one communication medium that couples the at least one host to the at least one OAS system. The at least one OAS system has a plurality of storage devices and stores a plurality of content units on the plurality of storage devices. Each of the at least one host and the at least one OAS system has software that provides a OAS interface so that each one of the content units stored on the OAS system may be identified between the at least one host and the at least one OAS using an object identifier. The computer system maps the object identifier for a first of the plurality of content units to at least one of the plurality of storage devices over at least one first path. In response to a failure that prevents the at least one host from accessing the first content unit via the at least one first path, the computer system is automatically reconfigured to establish at least one previously non-established second path that enables the at least one host to access the first content unit using the object identifier for the first content unit.
PCT/US2006/049593 2006-01-03 2006-12-29 Methods and apparatus for reconfiguring a storage system WO2007081581A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06849270A EP1969454A2 (en) 2006-01-03 2006-12-29 Methods and apparatus for reconfiguring a storage system
JP2008548770A JP2009522656A (en) 2006-01-03 2006-12-29 Method and apparatus for reconfiguring a storage system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/324,728 2006-01-03
US11/324,728 US7529972B2 (en) 2006-01-03 2006-01-03 Methods and apparatus for reconfiguring a storage system
US11/324,639 US20070157002A1 (en) 2006-01-03 2006-01-03 Methods and apparatus for configuring a storage system
US11/324,639 2006-01-03

Publications (2)

Publication Number Publication Date
WO2007081581A2 WO2007081581A2 (en) 2007-07-19
WO2007081581A3 true WO2007081581A3 (en) 2007-10-18

Family

ID=38201067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049593 WO2007081581A2 (en) 2006-01-03 2006-12-29 Methods and apparatus for reconfiguring a storage system

Country Status (3)

Country Link
EP (1) EP1969454A2 (en)
JP (1) JP2009522656A (en)
WO (1) WO2007081581A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7992037B2 (en) * 2008-09-11 2011-08-02 Nec Laboratories America, Inc. Scalable secondary storage systems and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030135782A1 (en) * 2002-01-16 2003-07-17 Hitachi, Ltd. Fail-over storage system
US6826613B1 (en) * 2000-03-15 2004-11-30 3Com Corporation Virtually addressing storage devices through a switch
US20050125384A1 (en) * 2003-12-03 2005-06-09 International Business Machines Corporation Transparent content addressable data storage and compression for a file system
US20050195660A1 (en) * 2004-02-11 2005-09-08 Kavuri Ravi K. Clustered hierarchical file services

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826613B1 (en) * 2000-03-15 2004-11-30 3Com Corporation Virtually addressing storage devices through a switch
US20030135782A1 (en) * 2002-01-16 2003-07-17 Hitachi, Ltd. Fail-over storage system
US20050125384A1 (en) * 2003-12-03 2005-06-09 International Business Machines Corporation Transparent content addressable data storage and compression for a file system
US20050195660A1 (en) * 2004-02-11 2005-09-08 Kavuri Ravi K. Clustered hierarchical file services

Also Published As

Publication number Publication date
WO2007081581A2 (en) 2007-07-19
JP2009522656A (en) 2009-06-11
EP1969454A2 (en) 2008-09-17

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