CA2039364A1 - Preemptive demount in an automated storage library - Google Patents

Preemptive demount in an automated storage library

Info

Publication number
CA2039364A1
CA2039364A1 CA2039364A CA2039364A CA2039364A1 CA 2039364 A1 CA2039364 A1 CA 2039364A1 CA 2039364 A CA2039364 A CA 2039364A CA 2039364 A CA2039364 A CA 2039364A CA 2039364 A1 CA2039364 A1 CA 2039364A1
Authority
CA
Canada
Prior art keywords
storage
library
demount
devices
preemptive
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2039364A
Other languages
French (fr)
Other versions
CA2039364C (en
Inventor
Joseph Charles Hartung
Christopher John Monahan
Jesse Lee Thrall
Dennis Lee Willson
Daniel James Winarski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2039364A1 publication Critical patent/CA2039364A1/en
Application granted granted Critical
Publication of CA2039364C publication Critical patent/CA2039364C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • G06F3/0605—Improving or facilitating administration, e.g. storage management by facilitating the interaction with a user or administrator
    • 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
    • G06F3/0632—Configuration or reconfiguration of storage systems by initialisation or re-initialisation of storage systems
    • 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
    • G06F3/0653—Monitoring storage devices or systems
    • 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
    • G06F3/0671—In-line storage system
    • G06F3/0683—Plurality of storage devices
    • G06F3/0686—Libraries, e.g. tape libraries, jukebox
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
    • G11B17/228—Control systems for magazines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G06F2003/0697—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers device management, e.g. handlers, drivers, I/O schedulers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 

Abstract

A method for selecting data storage media for demount in an automated storage library, and an automated storage library and program product therefor are disclosed.
Preemptive demount of storage media is permitted when all peripheral storage devices in the library are occupied and one or more of such devices remains inactive for a predetermined time. Storage media may be demounted to service existing mount requests, provided the peripheral storage devices in which the media are mounted are inactive. There is also a need, however, to ensure the availability of an empty device to service future mount requests, particularly in libraries having only a single gripper mechanism. Thus, even when no mount requests are pending, the status of the peripheral storage devices is continually monitored. If the peripheral storage devices are all occupied, and one or more of such devices remains inactive for the predetermined time, the least recently used storage medium is demounted and transferred to a storage cell in the library.
CA002039364A 1990-05-21 1991-03-28 Preemptive demount in an automated storage library Expired - Fee Related CA2039364C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US526,256 1990-05-21
US07/526,256 US5239650A (en) 1990-05-21 1990-05-21 Preemptive demount in an automated storage library

Publications (2)

Publication Number Publication Date
CA2039364A1 true CA2039364A1 (en) 1991-11-22
CA2039364C CA2039364C (en) 1995-08-29

Family

ID=24096569

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002039364A Expired - Fee Related CA2039364C (en) 1990-05-21 1991-03-28 Preemptive demount in an automated storage library

Country Status (4)

Country Link
US (2) US5239650A (en)
JP (1) JP2554406B2 (en)
BR (1) BR9102009A (en)
CA (1) CA2039364C (en)

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US5778374A (en) * 1995-08-03 1998-07-07 International Business Machines Corporation Compressed common file directory for mass storage systems
US5787446A (en) * 1995-08-03 1998-07-28 International Business Machines Corporation Sub-volume with floating storage space
US5566348A (en) * 1995-10-22 1996-10-15 International Business Machines Corporation System for adaptively optimizing automated optical library management
US5850566A (en) * 1995-12-13 1998-12-15 International Business Machines Corporation Method for storing multiple files without header information and for each storage medium maintaining a separate stored index including header information for each file
US5745756A (en) * 1996-06-24 1998-04-28 International Business Machines Corporation Method and system for managing movement of large multi-media data files from an archival storage to an active storage within a multi-media server computer system
US6029230A (en) * 1996-10-22 2000-02-22 International Business Machines Corporation Data storage library with media destaging and prestaging for improved response time
US5925119A (en) * 1997-03-28 1999-07-20 Quantum Corporation Computer architecture for automated storage library
US6115648A (en) * 1997-09-16 2000-09-05 International Business Machines Corporation System and method for non-invasive accessor recalibration
US6052341A (en) * 1997-12-16 2000-04-18 International Business Machines Corporation Device element allocation manager and method for a multi-library system for multiple host connections
US5956301A (en) * 1998-03-25 1999-09-21 International Business Machines Corporation Automated data storage library media handling with a plurality of pickers having multiple grippers
US6537013B2 (en) 2001-04-26 2003-03-25 International Business Machines Corporation Picking mechanism with ventilation system for automated library of memory storage units
US6865640B2 (en) * 2001-04-26 2005-03-08 International Business Machines Corporation Hard disk drive library
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JPWO2004109672A1 (en) * 2003-06-03 2006-07-20 富士通株式会社 Optical information storage device and optical information storage system
US6982847B2 (en) * 2003-09-18 2006-01-03 International Business Machines Corporation Method and apparatus for implementing autonomous variation of media dismount time in a robotic media library
US7651528B2 (en) * 2004-11-18 2010-01-26 Cayenne Medical, Inc. Devices, systems and methods for material fixation
US8751034B2 (en) * 2011-09-30 2014-06-10 International Business Machines Corporation Non-host interface for moving cartridges in a cartridge library to prevent bonding with library storage slots
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US10423334B2 (en) 2017-01-03 2019-09-24 International Business Machines Corporation Predetermined placement for tape cartridges in an automated data storage library

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Also Published As

Publication number Publication date
US5239650A (en) 1993-08-24
CA2039364C (en) 1995-08-29
BR9102009A (en) 1991-12-24
JPH04228146A (en) 1992-08-18
USRE36286E (en) 1999-08-31
JP2554406B2 (en) 1996-11-13

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