CN109002266A - A method of promoting metadata reliability in traditional RAID group - Google Patents
A method of promoting metadata reliability in traditional RAID group Download PDFInfo
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- CN109002266A CN109002266A CN201810995114.2A CN201810995114A CN109002266A CN 109002266 A CN109002266 A CN 109002266A CN 201810995114 A CN201810995114 A CN 201810995114A CN 109002266 A CN109002266 A CN 109002266A
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- metadata
- logical disk
- raid group
- data
- reliability
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- 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
- G06F3/0614—Improving the reliability 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
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0634—Configuration or reconfiguration of storage systems by changing the state or mode of one or more devices
-
- 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
- G06F3/0689—Disk arrays, e.g. RAID, JBOD
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The method that the invention discloses a kind of to promote metadata reliability in traditional RAID group, comprising the following steps: each hard disk is divided into metadata Logical Disk and data logical disk；RAID group is respectively created in metadata Logical Disk and data logical disk.The method disclosed by the invention that metadata reliability is promoted in traditional RAID group, for the lower problem of Preservation Metadata reliability in conventional store, it is proposed a kind of technology that each hard disk is divided into metadata Logical Disk and data logical disk, then RAID group is respectively created in metadata and data, to realize that metadata is separated with the RAID level of data, achieve the purpose that promote metadata reliability, solves the problems, such as to be difficult to promote metadata reliability based on traditional RAID.
Description
Technical field
The present invention relates to technical field of memory more particularly to a kind of sides that metadata reliability is promoted in traditional RAID group
Method.
Background technique
Existing RAID technique is generally divided into traditional RAID and (directly forms multiple hard disks according to fixed RAID level
RAID group) and distributed raid (each hard disk partition is become into fixed fritter storage unit, then by the fritter on different disks
Storage unit forms RAID group according to fixed RAID level, and typical technology is exactly the RAID2.0 of Huawei).
Traditional RAID is since it realizes upper simple, and performance is also fine, thus still by conventional store manufacturer (EMC,
IBM etc.) favor.But conventional store have the shortcomings that very big be exactly: after multiple hard disks composition RAID, RAID level is exactly to consolidate
Fixed one kind, upper very inflexible in application, especially under the more scene of metadata, reliability endures user's query to the fullest extent.
Such as: certain application scenarios, user are based on performance and cost consideration and wish to save data with RAID5, however due to storage inside
Logic realize snapshot, again delete, dodge the functions such as ROW full when can generate a large amount of metadata, and these metadata important ratio numbers
According to much higher, user is obviously unsatisfactory for RAID5 come Preservation Metadata.However, the technology based on traditional RAID is that be difficult will be first
The RAID level of data and data is separated.
Based on the above issues, therefore, to those skilled in the art, find a kind of based on traditional RAID technique realization
Metadata is separated with the RAID level of data, is reached the scheme for promoting metadata reliability purpose, is that the technology of urgent need to resolve is asked
Topic.
Summary of the invention
Technical problems based on background technology, the invention proposes one kind promote metadata in traditional RAID group can
By the method for property, each hard disk is divided into the technology of metadata Logical Disk and data logical disk, then by metadata and data point
Not Chuan Jian RAID group achieve the purpose that promote metadata reliability to realize that metadata is separated with the RAID level of data.
A kind of method promoting metadata reliability in traditional RAID group proposed by the present invention, comprising the following steps:
Each hard disk is divided into metadata Logical Disk and data logical disk；
RAID group is respectively created in metadata Logical Disk and data logical disk.
Preferably, each physical disks are divided into 1 metadata Logical Disk and 1 data logical disk, wherein metadata is patrolled
The space of volume disk and data logical disk according to system design in the ratio of metadata matched, and metadata Logical Disk and data
The logical space of Logical Disk is not shared independently of each other.
Preferably, when creating data logical disk RAID group, data logical disk is formed according to the RAID level that user specifies
RAID group.
Preferably, when creating metadata Logical Disk RAID group, the metadata Logical Disk RAID level determining according to internal system
It Zu Cheng not RAID group.
Preferably, the redundancy of the RAID level of metadata is higher than the RAID level of data.
A kind of method promoting metadata reliability in traditional RAID group provided in the present invention, in conventional store
The lower problem of Preservation Metadata reliability proposes a kind of skill that each hard disk is divided into metadata Logical Disk and data logical disk
Then metadata and data are respectively created RAID group, to realize that metadata is separated with the RAID level of data, reach and mention by art
The purpose for rising metadata reliability, solves the problems, such as to be difficult to promote metadata reliability based on traditional RAID.
Detailed description of the invention
Fig. 1 is a kind of flow chart of method that metadata reliability is promoted in traditional RAID group proposed by the present invention.
Specific embodiment
As shown in FIG. 1, FIG. 1 is a kind of methods that metadata reliability is promoted in traditional RAID group proposed by the present invention
Flow chart.
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
A method of promoting metadata reliability in traditional RAID group, comprising the following steps:
S1: each physical disks are divided into 1 metadata Logical Disk and 1 data logical disk, wherein metadata Logical Disk
With the space of data logical disk according to system design in the ratio of metadata matched, and metadata Logical Disk and mathematical logic
The logical space of disk is not shared independently of each other；
S2: when creation data logical disk RAID group, data logical disk forms RAID group according to the RAID level that user specifies；
S3: when creation metadata Logical Disk RAID group, the metadata Logical Disk RAID level group determining according to internal system
At RAID group, and the redundancy of the RAID level of metadata is higher than the RAID level of data.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of method for promoting metadata reliability in traditional RAID group, which comprises the following steps:
Each hard disk is divided into metadata Logical Disk and data logical disk；
RAID group is respectively created in metadata Logical Disk and data logical disk.
2. the method according to claim 1 for promoting metadata reliability in traditional RAID group, which is characterized in that will be every
A physical disks are divided into 1 metadata Logical Disk and 1 data logical disk, wherein metadata Logical Disk and data logical disk
Space according to system design in the ratio of metadata matched, and the logical space phase of metadata Logical Disk and data logical disk
It is mutually independent not share.
3. the method according to claim 1 for promoting metadata reliability in traditional RAID group, which is characterized in that creation
When data logical disk RAID group, data logical disk forms RAID group according to the RAID level that user specifies.
4. the method according to claim 1 for promoting metadata reliability in traditional RAID group, which is characterized in that creation
When metadata Logical Disk RAID group, metadata Logical Disk forms RAID group according to the RAID level that internal system determines.
5. the method according to claim 4 for promoting metadata reliability in traditional RAID group, which is characterized in that first number
According to RAID level redundancy be higher than data RAID level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810995114.2A CN109002266A (en) | 2018-08-29 | 2018-08-29 | A method of promoting metadata reliability in traditional RAID group |
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| CN201810995114.2A CN109002266A (en) | 2018-08-29 | 2018-08-29 | A method of promoting metadata reliability in traditional RAID group |
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| CN201810995114.2A Pending CN109002266A (en) | 2018-08-29 | 2018-08-29 | A method of promoting metadata reliability in traditional RAID group |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190550A (en) * | 2019-12-31 | 2020-05-22 | 深圳市安云信息科技有限公司 | Metadata acceleration method and device and storage equipment |
| CN112269540A (en) * | 2020-10-16 | 2021-01-26 | 苏州浪潮智能科技有限公司 | Data storage method, system, equipment and computer readable storage medium |
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Application publication date: 20181214 |