WO2009101074A3 - Apparatus and method to allocate resources in a data storage library - Google Patents

Apparatus and method to allocate resources in a data storage library Download PDF

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Publication number
WO2009101074A3
WO2009101074A3 PCT/EP2009/051494 EP2009051494W WO2009101074A3 WO 2009101074 A3 WO2009101074 A3 WO 2009101074A3 EP 2009051494 W EP2009051494 W EP 2009051494W WO 2009101074 A3 WO2009101074 A3 WO 2009101074A3
Authority
WO
WIPO (PCT)
Prior art keywords
resource allocation
requests
storage device
data storage
host
Prior art date
Application number
PCT/EP2009/051494
Other languages
French (fr)
Other versions
WO2009101074A2 (en
Inventor
Allen Keith Bates
Nils Haustein
Craig Anthony Klein
Daniel James Winarski
Original Assignee
International Business Machines Corporation
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 International Business Machines Corporation filed Critical International Business Machines Corporation
Publication of WO2009101074A2 publication Critical patent/WO2009101074A2/en
Publication of WO2009101074A3 publication Critical patent/WO2009101074A3/en

Links

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
    • G06F11/1084—Degraded mode, e.g. caused by single or multiple storage removals or disk failures
    • 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

Abstract

A method to allocate resources in a data storage library comprising a plurality of data storage devices configured as a RAID array, by establishing a normal operation resource allocation, a RAID failure resource allocation, and a multiple storage device failure resource allocation. The method receives host I/O requests, and enqueues those host I/O requests. If the system is operating without any storage device failures, then the method processes host I/O requests using the normal operation resource allocation. If the system is operating with a storage device failure, then the method processes host I/O requests using the RAID failure resource allocation. If the system is operating with multiple storage device failures, then the method processes host I/O requests using the multiple storage device failure resource allocation.
PCT/EP2009/051494 2008-02-14 2009-02-10 Apparatus and method to allocate resources in a data storage library WO2009101074A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/031,548 2008-02-14
US12/031,548 US7979635B2 (en) 2008-02-14 2008-02-14 Apparatus and method to allocate resources in a data storage library

Publications (2)

Publication Number Publication Date
WO2009101074A2 WO2009101074A2 (en) 2009-08-20
WO2009101074A3 true WO2009101074A3 (en) 2010-04-01

Family

ID=40874856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/051494 WO2009101074A2 (en) 2008-02-14 2009-02-10 Apparatus and method to allocate resources in a data storage library

Country Status (2)

Country Link
US (1) US7979635B2 (en)
WO (1) WO2009101074A2 (en)

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US20120278550A1 (en) * 2011-04-26 2012-11-01 Byungcheol Cho System architecture based on raid controller collaboration
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US20150244795A1 (en) 2014-02-21 2015-08-27 Solidfire, Inc. Data syncing in a distributed system
US9396068B2 (en) * 2014-04-17 2016-07-19 International Business Machines Corporation Adaptive rebuild scheduling scheme
US9594632B2 (en) * 2014-07-09 2017-03-14 Qualcomm Incorporated Systems and methods for reliably storing data using liquid distributed storage
US9582355B2 (en) * 2014-07-09 2017-02-28 Qualcomm Incorporated Systems and methods for reliably storing data using liquid distributed storage
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US10133511B2 (en) 2014-09-12 2018-11-20 Netapp, Inc Optimized segment cleaning technique
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US10929022B2 (en) 2016-04-25 2021-02-23 Netapp. Inc. Space savings reporting for storage system supporting snapshot and clones
US10191808B2 (en) * 2016-08-04 2019-01-29 Qualcomm Incorporated Systems and methods for storing, maintaining, and accessing objects in storage system clusters
US10642763B2 (en) 2016-09-20 2020-05-05 Netapp, Inc. Quality of service policy sets
CN106980468A (en) * 2017-03-03 2017-07-25 杭州宏杉科技股份有限公司 Trigger the method and device that RAID array is rebuild
US10725776B2 (en) 2017-12-01 2020-07-28 International Business Machines Corporation Reducing a rate at which requests are sent from one processor to another to reduce processor utilization at the processor receiving the requests
US10664187B2 (en) * 2017-12-01 2020-05-26 International Business Machines Corporation Reducing a rate at which data is mirrored from a primary server to a secondary server
US10417069B2 (en) * 2017-12-01 2019-09-17 International Business Machines Corporation Handling zero fault tolerance events in machines where failure likely results in unacceptable loss
US10481834B2 (en) * 2018-01-24 2019-11-19 Samsung Electronics Co., Ltd. Erasure code data protection across multiple NVME over fabrics storage devices
US10761738B2 (en) * 2018-07-13 2020-09-01 Seagate Technology Llc Raid performance by offloading tasks to expanders
US11513855B2 (en) * 2020-04-07 2022-11-29 EMC IP Holding Company, LLC System and method for allocating central processing unit (CPU) cores for system operations
US11403175B2 (en) * 2020-07-31 2022-08-02 EMC IP Holding Company LLC Rebuilding data previously stored on a failed data storage drive

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US6647514B1 (en) * 2000-03-23 2003-11-11 Hewlett-Packard Development Company, L.P. Host I/O performance and availability of a storage array during rebuild by prioritizing I/O request
EP1703397A2 (en) * 2005-03-15 2006-09-20 Fujitsu Limited Storage control apparatus and method

Also Published As

Publication number Publication date
WO2009101074A2 (en) 2009-08-20
US20090210618A1 (en) 2009-08-20
US7979635B2 (en) 2011-07-12

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