DE69519350T2 - Speichergerät und Verfahren zu seiner Steuerung - Google Patents
Speichergerät und Verfahren zu seiner SteuerungInfo
- Publication number
- DE69519350T2 DE69519350T2 DE69519350T DE69519350T DE69519350T2 DE 69519350 T2 DE69519350 T2 DE 69519350T2 DE 69519350 T DE69519350 T DE 69519350T DE 69519350 T DE69519350 T DE 69519350T DE 69519350 T2 DE69519350 T2 DE 69519350T2
- Authority
- DE
- Germany
- Prior art keywords
- parity
- record
- undergo
- generation
- new value
- 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.)
- Expired - Lifetime
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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0804—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with main memory updating
-
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0866—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches for peripheral storage systems, e.g. disk cache
-
- 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
- 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
- G06F2211/1009—Cache, i.e. caches used in RAID system with parity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99951—File or database maintenance
- Y10S707/99952—Coherency, e.g. same view to multiple users
- Y10S707/99953—Recoverability
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19396694A JP3687111B2 (ja) | 1994-08-18 | 1994-08-18 | 記憶装置システムおよび記憶装置の制御方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69519350D1 DE69519350D1 (de) | 2000-12-14 |
DE69519350T2 true DE69519350T2 (de) | 2001-06-13 |
Family
ID=16316735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69519350T Expired - Lifetime DE69519350T2 (de) | 1994-08-18 | 1995-08-17 | Speichergerät und Verfahren zu seiner Steuerung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5734813A (de) |
EP (1) | EP0702301B1 (de) |
JP (1) | JP3687111B2 (de) |
DE (1) | DE69519350T2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5544347A (en) | 1990-09-24 | 1996-08-06 | Emc Corporation | Data storage system controlled remote data mirroring with respectively maintained data indices |
US5680640A (en) | 1995-09-01 | 1997-10-21 | Emc Corporation | System for migrating data by selecting a first or second transfer means based on the status of a data element map initialized to a predetermined state |
JP3713788B2 (ja) * | 1996-02-28 | 2005-11-09 | 株式会社日立製作所 | 記憶装置および記憶装置システム |
US6021463A (en) * | 1997-09-02 | 2000-02-01 | International Business Machines Corporation | Method and means for efficiently managing update writes and fault tolerance in redundancy groups of addressable ECC-coded sectors in a DASD storage subsystem |
US6289415B1 (en) * | 1998-12-23 | 2001-09-11 | At&T Corporation | System and method for storage media group parity protection |
JP4462852B2 (ja) * | 2003-06-23 | 2010-05-12 | 株式会社日立製作所 | ストレージシステム及びストレージシステムの接続方法 |
US7519629B2 (en) * | 2004-09-30 | 2009-04-14 | International Business Machines Corporation | System and method for tolerating multiple storage device failures in a storage system with constrained parity in-degree |
JP5487482B2 (ja) * | 2007-06-29 | 2014-05-07 | シーゲイト テクノロジー エルエルシー | 記憶システムにおけるプロセッサ・パートナリング |
US9569303B2 (en) * | 2014-08-08 | 2017-02-14 | Kabushiki Kaisha Toshiba | Information processing apparatus |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5124987A (en) * | 1990-04-16 | 1992-06-23 | Storage Technology Corporation | Logical track write scheduling system for a parallel disk drive array data storage subsystem |
US5193184A (en) * | 1990-06-18 | 1993-03-09 | Storage Technology Corporation | Deleted data file space release system for a dynamically mapped virtual data storage subsystem |
JPH0731582B2 (ja) * | 1990-06-21 | 1995-04-10 | インターナショナル・ビジネス・マシーンズ・コーポレイション | パリティ保護データを回復するための方法および装置 |
US5210866A (en) * | 1990-09-12 | 1993-05-11 | Storage Technology Corporation | Incremental disk backup system for a dynamically mapped data storage subsystem |
US5155835A (en) * | 1990-11-19 | 1992-10-13 | Storage Technology Corporation | Multilevel, hierarchical, dynamically mapped data storage subsystem |
US5542064A (en) * | 1991-11-21 | 1996-07-30 | Hitachi, Ltd. | Data read/write method by suitably selecting storage units in which multiple copies of identical data are stored and apparatus therefor |
US5341381A (en) * | 1992-01-21 | 1994-08-23 | Tandem Computers, Incorporated | Redundant array parity caching system |
US5394532A (en) * | 1992-04-15 | 1995-02-28 | Storage Technology Corporation | Disk drive array memory system having instant format capability |
US5410667A (en) * | 1992-04-17 | 1995-04-25 | Storage Technology Corporation | Data record copy system for a disk drive array data storage subsystem |
JP3183719B2 (ja) * | 1992-08-26 | 2001-07-09 | 三菱電機株式会社 | アレイ型記録装置 |
US5581724A (en) * | 1992-10-19 | 1996-12-03 | Storage Technology Corporation | Dynamically mapped data storage subsystem having multiple open destage cylinders and method of managing that subsystem |
US5416915A (en) * | 1992-12-11 | 1995-05-16 | International Business Machines Corporation | Method and system for minimizing seek affinity and enhancing write sensitivity in a DASD array |
GB2273798A (en) * | 1992-12-22 | 1994-06-29 | Ibm | Cache system for disk array. |
US5579474A (en) * | 1992-12-28 | 1996-11-26 | Hitachi, Ltd. | Disk array system and its control method |
EP0612015A1 (de) * | 1993-02-16 | 1994-08-24 | International Business Machines Corporation | Verbesserte Speicherplattenanordnung mit besonderen Paritätsgruppen für Datenblöcke mit hoher Aktualisierungsfrequenz |
US5463765A (en) * | 1993-03-18 | 1995-10-31 | Hitachi, Ltd. | Disk array system, data writing method thereof, and fault recovering method |
JP3249868B2 (ja) * | 1993-11-19 | 2002-01-21 | 株式会社日立製作所 | アレイ形式の記憶装置システム |
DE69418984T2 (de) * | 1993-11-30 | 2000-01-27 | Hitachi Ltd | Speicherplattenanordnung mit auf einer Vielzahl von Leiterplatten verteilten Speicherplatten, die bei einer Entfernung eines Teils der Leiterplatten zugänglich bleiben |
US5530948A (en) * | 1993-12-30 | 1996-06-25 | International Business Machines Corporation | System and method for command queuing on raid levels 4 and 5 parity drives |
US5537567A (en) * | 1994-03-14 | 1996-07-16 | International Business Machines Corporation | Parity block configuration in an array of storage devices |
US5522032A (en) * | 1994-05-05 | 1996-05-28 | International Business Machines Corporation | Raid level 5 with free blocks parity cache |
US5537534A (en) * | 1995-02-10 | 1996-07-16 | Hewlett-Packard Company | Disk array having redundant storage and methods for incrementally generating redundancy as data is written to the disk array |
US5574882A (en) * | 1995-03-03 | 1996-11-12 | International Business Machines Corporation | System and method for identifying inconsistent parity in an array of storage |
-
1994
- 1994-08-18 JP JP19396694A patent/JP3687111B2/ja not_active Expired - Lifetime
-
1995
- 1995-08-07 US US08/511,731 patent/US5734813A/en not_active Expired - Lifetime
- 1995-08-17 DE DE69519350T patent/DE69519350T2/de not_active Expired - Lifetime
- 1995-08-17 EP EP95112951A patent/EP0702301B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5734813A (en) | 1998-03-31 |
JP3687111B2 (ja) | 2005-08-24 |
EP0702301B1 (de) | 2000-11-08 |
EP0702301A1 (de) | 1996-03-20 |
JPH0863394A (ja) | 1996-03-08 |
DE69519350D1 (de) | 2000-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |