IN2013KO01274A - - Google Patents
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- Publication number
- IN2013KO01274A IN2013KO01274A IN1274KO2013A IN2013KO01274A IN 2013KO01274 A IN2013KO01274 A IN 2013KO01274A IN 1274KO2013 A IN1274KO2013 A IN 1274KO2013A IN 2013KO01274 A IN2013KO01274 A IN 2013KO01274A
- Authority
- IN
- India
- Prior art keywords
- node
- data
- virtual volume
- log entries
- data transfer
- Prior art date
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
- G06F11/16—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
- G06F11/2094—Redundant storage or storage space
-
- 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
- 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
- G06F11/2056—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 by mirroring
- G06F11/2064—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 by mirroring while ensuring consistency
-
- 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
-
- 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
- G06F11/1658—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit
- G06F11/1662—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit the resynchronized component or unit being a persistent storage device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
- G06F2201/82—Solving problems relating to consistency
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Human Computer Interaction (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The disclosure is directed to preserving data consistency in a multiple- node data storage system. According to various embodiments, a write log is maintained including log entries for data transfer requests being served by a respective node of the multiple-node data storage system. Rather than maintaining a full write journal of data and parity associated with each data transfer request, the log entries only need to identify portions of the virtual volume being updated according to the data transfer requests served by each node. When a first node fails, a second node takes over administration of a virtual volume for the failed node. Upon taking over for the first (failed) node, the second node resolves any inconsistencies between data and parity in portions of the virtual volume identified the respective log entries. Accordingly, write holes are prevented without substantially increasing memory usage or system complexity.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1274KO2013 IN2013KO01274A (en) | 2013-11-08 | 2013-11-08 | |
US14/091,397 US9286175B2 (en) | 2013-11-08 | 2013-11-27 | System and method of write hole protection for a multiple-node storage cluster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1274KO2013 IN2013KO01274A (en) | 2013-11-08 | 2013-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2013KO01274A true IN2013KO01274A (en) | 2015-05-15 |
Family
ID=53044886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1274KO2013 IN2013KO01274A (en) | 2013-11-08 | 2013-11-08 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9286175B2 (en) |
IN (1) | IN2013KO01274A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170031791A1 (en) * | 2015-07-27 | 2017-02-02 | Futurewei Technologies, Inc. | Maintaining a parity-inconsistent table to identify stripes affected by a write hole effect |
CN110431538B (en) * | 2017-03-16 | 2023-04-28 | 微软技术许可有限责任公司 | Storage system control |
US10481979B2 (en) * | 2017-09-28 | 2019-11-19 | Intel Corporation | Storage system, computing system, and methods thereof |
KR20200035592A (en) | 2018-09-27 | 2020-04-06 | 삼성전자주식회사 | Method of operating storage device, storage device performing the same and storage system including the same |
US10970169B2 (en) * | 2019-06-27 | 2021-04-06 | General Electric Company | Data configuration management system for an engine |
CN113010119B (en) * | 2021-04-27 | 2022-09-30 | 宏图智能物流股份有限公司 | Method for realizing distributed storage of voice data through main/standby mode |
US11599412B1 (en) * | 2021-09-15 | 2023-03-07 | Cisco Technology, Inc. | Method and apparatus for distributed erasure encoding |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997001139A1 (en) | 1995-06-23 | 1997-01-09 | Elonex Plc | Disk array controller with enhanced synchronous write |
US6067635A (en) * | 1995-10-27 | 2000-05-23 | Lsi Logic Corporation | Preservation of data integrity in a raid storage device |
US6891690B2 (en) * | 2002-11-20 | 2005-05-10 | International Business Machines Corporation | On-drive integrated sector format raid error correction code system and method |
US7779294B2 (en) * | 2005-04-15 | 2010-08-17 | Intel Corporation | Power-safe disk storage apparatus, systems, and methods |
US7536586B2 (en) | 2006-01-12 | 2009-05-19 | Dell Products L.P. | System and method for the management of failure recovery in multiple-node shared-storage environments |
US8255739B1 (en) | 2008-06-30 | 2012-08-28 | American Megatrends, Inc. | Achieving data consistency in a node failover with a degraded RAID array |
US20100031262A1 (en) * | 2008-07-31 | 2010-02-04 | Baird-Gent Jill M | Program Schedule Sub-Project Network and Calendar Merge |
-
2013
- 2013-11-08 IN IN1274KO2013 patent/IN2013KO01274A/en unknown
- 2013-11-27 US US14/091,397 patent/US9286175B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20150135006A1 (en) | 2015-05-14 |
US9286175B2 (en) | 2016-03-15 |
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