WO2000039679A3 - Method and apparatus for balancing workloads among paths in a multi-path computer system - Google Patents

Method and apparatus for balancing workloads among paths in a multi-path computer system Download PDF

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Publication number
WO2000039679A3
WO2000039679A3 PCT/US1999/031105 US9931105W WO0039679A3 WO 2000039679 A3 WO2000039679 A3 WO 2000039679A3 US 9931105 W US9931105 W US 9931105W WO 0039679 A3 WO0039679 A3 WO 0039679A3
Authority
WO
WIPO (PCT)
Prior art keywords
paths
computer system
path computer
host computer
system resource
Prior art date
Application number
PCT/US1999/031105
Other languages
French (fr)
Other versions
WO2000039679A2 (en
Inventor
Errico Matthew J D
Original Assignee
Emc Corp
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 Emc Corp filed Critical Emc Corp
Priority to GB0114064A priority Critical patent/GB2359170B/en
Priority to DE19983857T priority patent/DE19983857T1/en
Priority to JP2000591507A priority patent/JP2002533831A/en
Publication of WO2000039679A2 publication Critical patent/WO2000039679A2/en
Publication of WO2000039679A3 publication Critical patent/WO2000039679A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
    • 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
    • G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/0647—Migration mechanisms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • G06F9/505—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the load

Abstract

A method and apparatus for distributing input/output (I/O) operations among at least two paths in a multi-path computer system including a host computer, a system resource and a plurality of paths coupling the host computer to the system resource. For a next I/O operation to be assigned for transmission between the host computer and the system resource, a selection is made of one of the at least two paths for transmission of the next I/O operation based upon a state of previously assigned I/O operations queued for transmission over the at least two paths.
PCT/US1999/031105 1998-12-31 1999-12-29 Method and apparatus for balancing workloads among paths in a multi-path computer system WO2000039679A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0114064A GB2359170B (en) 1998-12-31 1999-12-29 Method and apparatus for balancing workloads among paths in a multi-path computer system
DE19983857T DE19983857T1 (en) 1998-12-31 1999-12-29 Method and apparatus for balancing workloads between paths in a multi-path computer system
JP2000591507A JP2002533831A (en) 1998-12-31 1999-12-29 Method and apparatus for balancing workload between paths in a multi-pass computer system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/223,998 1998-12-31
US09/223,998 US6434637B1 (en) 1998-12-31 1998-12-31 Method and apparatus for balancing workloads among paths in a multi-path computer system based on the state of previous I/O operations

Publications (2)

Publication Number Publication Date
WO2000039679A2 WO2000039679A2 (en) 2000-07-06
WO2000039679A3 true WO2000039679A3 (en) 2000-11-23

Family

ID=22838863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/031105 WO2000039679A2 (en) 1998-12-31 1999-12-29 Method and apparatus for balancing workloads among paths in a multi-path computer system

Country Status (5)

Country Link
US (2) US6434637B1 (en)
JP (3) JP2002533831A (en)
DE (1) DE19983857T1 (en)
GB (1) GB2359170B (en)
WO (1) WO2000039679A2 (en)

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Also Published As

Publication number Publication date
GB0114064D0 (en) 2001-08-01
JP2005259155A (en) 2005-09-22
US20020166005A1 (en) 2002-11-07
JP2006351030A (en) 2006-12-28
WO2000039679A2 (en) 2000-07-06
DE19983857T1 (en) 2002-01-31
US6434637B1 (en) 2002-08-13
JP4405935B2 (en) 2010-01-27
JP2002533831A (en) 2002-10-08
GB2359170A (en) 2001-08-15
GB2359170B (en) 2003-12-24
US6542944B2 (en) 2003-04-01

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