Este conteúdo foi traduzido por máquina para sua conveniência e a Huawei Cloud não pode garantir que o conteúdo foi traduzido com precisão. Para exibir o conteúdo original, use o link no canto superior direito para mudar para a página em inglês.
Computação
Elastic Cloud Server
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Redes
Virtual Private Cloud
Elastic IP
Elastic Load Balance
NAT Gateway
Direct Connect
Virtual Private Network
VPC Endpoint
Cloud Connect
Enterprise Router
Enterprise Switch
Global Accelerator
Gerenciamento e governança
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
Cloud Operations Center
Resource Governance Center
Migração
Server Migration Service
Object Storage Migration Service
Cloud Data Migration
Migration Center
Cloud Ecosystem
KooGallery
Partner Center
User Support
My Account
Billing Center
Cost Center
Resource Center
Enterprise Management
Service Tickets
HUAWEI CLOUD (International) FAQs
ICP Filing
Support Plans
My Credentials
Customer Operation Capabilities
Partner Support Plans
Professional Services
Análises
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
IoT
IoT Device Access
Outros
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Segurança e conformidade
Security Technologies and Applications
Web Application Firewall
Host Security Service
Cloud Firewall
SecMaster
Anti-DDoS Service
Data Encryption Workshop
Database Security Service
Cloud Bastion Host
Data Security Center
Cloud Certificate Manager
Situation Awareness
Managed Threat Detection
Blockchain
Blockchain Service
Serviços de mídia
Media Processing Center
Video On Demand
Live
SparkRTC
Armazenamento
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Cloud Server Backup Service
Storage Disaster Recovery Service
Scalable File Service
Volume Backup Service
Data Express Service
Dedicated Distributed Storage Service
Containers
Cloud Container Engine
SoftWare Repository for Container
Application Service Mesh
Ubiquitous Cloud Native Service
Cloud Container Instance
Bancos de dados
Relational Database Service
Document Database Service
Data Admin Service
Data Replication Service
GeminiDB
GaussDB
Distributed Database Middleware
Database and Application Migration UGO
TaurusDB
Middleware
Distributed Cache Service
API Gateway
Distributed Message Service for Kafka
Distributed Message Service for RabbitMQ
Distributed Message Service for RocketMQ
Cloud Service Engine
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Aplicações de negócios
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Data Lake Factory
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Distribuição de conteúdo e computação de borda
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Soluções
SAP Cloud
High Performance Computing
Serviços para desenvolvedore
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
Cloud Application Engine
MacroVerse aPaaS
KooPhone
KooDrive
Nesta página

Restoring a Snapshot to a New Cluster

Atualizado em 2024-08-19 GMT+08:00

Scenario

This section describes how to restore a snapshot to a new cluster when you want to check point-in-time snapshot data of the cluster.

When a snapshot is restored to a new cluster, the restoration time is determined by the amount of data backed up by the snapshot. If a snapshot contains a large amount of data, the restoration will be slow. A small snapshot can be quickly restored.

Automatic snapshots are incremental backups. When restoring a snapshot to a new cluster, GaussDB(DWS) uses all snapshots between the latest full backup and the current snapshot. You can set the backup frequency. If snapshots are backed up only once a week, the backup will be slow if the incremental data volume is large. You are advised to increase the backup frequency.

  • Currently, you can only use the snapshots stored in OBS to restore data to a new cluster.
  • By default, the new cluster created during restoration has the same specifications and node quantity as the original cluster.
  • Restoring data to a new cluster does not affect the services running in the original cluster.
  • If cold and hot tables are used, snapshots cannot be used to restore cold data to a new cluster.
  • Fine-grained restoration does not support tables in absolute or relative tablespace.
  • Logical clusters and resource pools cannot be restored to a new cluster.

Prerequisites

  • The resources required for restoring data to a new cluster do not exceed your available resource quota.
  • The snapshot is in the Available state.

Procedure

  1. Log in to the GaussDB(DWS) management console.
  2. In the navigation pane, choose Snapshots. All snapshots are displayed by default.
  3. In the Operation column of a snapshot, click Restore.

  4. On the Restore Snapshot page, configure the parameters of the new cluster, as shown in the following figure. Extreme SSD and Extreme SSD V2 can only be selected for clusters that use ECS for computing and EVS for storage.

    1. Restore to a single-AZ cluster.

    2. Restore to a multi-AZ cluster.
      • Only clusters later than 8.2.0.100 can be restored to a multi-AZ cluster.
      • Currently, the multi-AZ cluster supports only GaussDB(DWS) 2.0 standard data warehouses.
      • The number of AZs in the current region is greater than or equal to 3.
      • The number of nodes and CNs must be a multiple of 3.
      • DNs in the multi-AZ cluster must be less than or equal to 2.

    You can modify cluster parameters. For details, see Tabela 1. By default, other parameters are the same as those in the snapshot. For details, see Tabela 2.

    Tabela 1 Parameters for the new cluster

    Category

    Operation

    Basic settings

    Region, AZ, node flavor, cluster name, database port, VPC, subnet, security group, public access, and enterprise project

    Advanced settings

    If Custom is selected, configure the following parameters:
    • Tag: If encryption is enabled for the original cluster, you can configure a key name.

  5. Click Restore to go to the confirmation page.
  6. Click Submit to restore the snapshot to the new cluster.

    When the status of the new cluster changes to Available, the snapshot is restored.

    After the snapshot is restored, the private network address and EIP (if EIP is set to Buy now) are automatically assigned.

    If the number of requested nodes, vCPU (cores), or memory (GB) exceed the user's remaining quota, a warning dialog box is displayed, indicating that the quota is insufficient and displaying the detailed remaining quota and the current quota application. You can click Increase quota in the warning dialog box to submit a service ticket and apply for higher node quota.

Usamos cookies para aprimorar nosso site e sua experiência. Ao continuar a navegar em nosso site, você aceita nossa política de cookies. Saiba mais

Feedback

Feedback

Feedback

0/500

Conteúdo selecionado

Envie o conteúdo selecionado com o feedback