CA2165910C - Methode pour etablir la parite dans un sous-systeme raid au moyen d'une memoire a remanence - Google Patents
Methode pour etablir la parite dans un sous-systeme raid au moyen d'une memoire a remanence Download PDFInfo
- Publication number
- CA2165910C CA2165910C CA002165910A CA2165910A CA2165910C CA 2165910 C CA2165910 C CA 2165910C CA 002165910 A CA002165910 A CA 002165910A CA 2165910 A CA2165910 A CA 2165910A CA 2165910 C CA2165910 C CA 2165910C
- Authority
- CA
- Canada
- Prior art keywords
- stripe
- data
- blocks
- parity
- raid array
- 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
-
- 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
- G06F11/08—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
- G06F11/1096—Parity calculation or recalculation after configuration or reconfiguration of the system
-
- 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
-
- 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
-
- 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
- G06F2211/104—Metadata, i.e. metadata associated with RAID systems with parity
-
- 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
- G06F2211/1057—Parity-multiple bits-RAID6, i.e. RAID 6 implementations
-
- 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
- G06F2211/109—Sector level checksum or ECC, i.e. sector or stripe level checksum or ECC in addition to the RAID parity calculation
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002165910A CA2165910C (fr) | 1995-12-21 | 1995-12-21 | Methode pour etablir la parite dans un sous-systeme raid au moyen d'une memoire a remanence |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002165910A CA2165910C (fr) | 1995-12-21 | 1995-12-21 | Methode pour etablir la parite dans un sous-systeme raid au moyen d'une memoire a remanence |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2165910A1 CA2165910A1 (fr) | 1997-06-22 |
CA2165910C true CA2165910C (fr) | 2008-10-07 |
Family
ID=4157217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002165910A Expired - Lifetime CA2165910C (fr) | 1995-12-21 | 1995-12-21 | Methode pour etablir la parite dans un sous-systeme raid au moyen d'une memoire a remanence |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2165910C (fr) |
-
1995
- 1995-12-21 CA CA002165910A patent/CA2165910C/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2165910A1 (fr) | 1997-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6480969B1 (en) | Providing parity in a RAID sub-system using non-volatile memory | |
EP0608344B1 (fr) | Systeme de sauvegarde de donnees pour repositionnement avec restauration | |
US7024586B2 (en) | Using file system information in raid data reconstruction and migration | |
US6883112B2 (en) | Storage device, backup and fault tolerant redundant method and computer program code of plurality storage devices | |
US5504858A (en) | Method and apparatus for preserving data integrity in a multiple disk raid organized storage system | |
US5522031A (en) | Method and apparatus for the on-line restoration of a disk in a RAID-4 or RAID-5 array with concurrent access by applications | |
CN104035830B (zh) | 一种数据恢复方法和装置 | |
US7721143B2 (en) | Method for reducing rebuild time on a RAID device | |
US6233696B1 (en) | Data verification and repair in redundant storage systems | |
US7464289B2 (en) | Storage system and method for handling bad storage device data therefor | |
GB2414592A (en) | Decreasing failed disk reconstruction time in a RAID data storage system | |
JP2000207136A (ja) | 複数ドライブ故障トレラントraidアルゴリズム | |
US7818524B2 (en) | Data migration systems and methods for independent storage device expansion and adaptation | |
KR20060101156A (ko) | 스토리지 제어 장치 및 방법 | |
US7958432B2 (en) | Verification of non volatile storage storing preserved unneeded data | |
US6389511B1 (en) | On-line data verification and repair in redundant storage system | |
US20050114729A1 (en) | Host-initiated data reconstruction for improved raid read operations | |
GB2343265A (en) | Data storage array rebuild | |
JP2857288B2 (ja) | ディスクアレイ装置 | |
CA2165910C (fr) | Methode pour etablir la parite dans un sous-systeme raid au moyen d'une memoire a remanence | |
JP2010049394A (ja) | 磁気ディスクの書き込み障害の検出と回復を行うディスクアレイシステム、方法およびプログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20151221 |