หน้านี้ยังไม่พร้อมใช้งานในภาษาท้องถิ่นของคุณ เรากำลังพยายามอย่างหนักเพื่อเพิ่มเวอร์ชันภาษาอื่น ๆ เพิ่มเติม ขอบคุณสำหรับการสนับสนุนเสมอมา

Compute
Elastic Cloud Server
Huawei Cloud Flexus
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Networking
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
Management & Governance
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
OneAccess
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
IAM Identity Center
Cloud Operations Center
Resource Governance Center
Migration
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
Analytics
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
Data Lake Factory
DataArts Lake Formation
IoT
IoT Device Access
Others
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Security & Compliance
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
Edge Security
Situation Awareness
Managed Threat Detection
Blockchain
Blockchain Service
Web3 Node Engine Service
Media Services
Media Processing Center
Video On Demand
Live
SparkRTC
MetaStudio
Storage
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Storage Disaster Recovery Service
Scalable File Service Turbo
Scalable File Service
Volume Backup Service
Cloud Server 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
Databases
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
Multi-Site High Availability Service
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Business Applications
Workspace
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Video Intelligent Analysis Service
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Content Delivery & Edge Computing
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Intelligent EdgeCloud
Solutions
SAP Cloud
High Performance Computing
Developer Services
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
CodeArts Repo
Cloud Application Engine
MacroVerse aPaaS
KooMessage
KooPhone
KooDrive

Node and Role

Updated on 2022-12-08 GMT+08:00

SAP HANA Node

SAP HANA nodes are logical units that constitute an SAP HANA system. An SAP HANA node contains the CPU, memory, and storage (such as log, data, shared, and backup volumes) resources with specified specifications, as shown in Figure 1.

Figure 1 SAP HANA node

SAP HANA Studio

SAP HANA Studio provides management, monitoring, and information modeling of the SAP HANA system. It can also function as a client and provides capabilities to access user data. The information that the SAP HANA Studio provides includes the system information (such as software version), alarm information (generated by Statistics Server), and statistics of key system resources.

NAT Server

Provides the capability to switch to the HANA ECS using SSH. It allows you to switch to an SAP HANA node from the NAT server using Secure Shell (SSH).

SFS

Scalable File Service (SFS) provides the file sharing service. Create a file system to provide the backup volumes and the shared path to SAP HANA nodes.

SAP HANA Roles

In SAP HANA cluster deployment mode, the roles assigned to SAP HANA nodes are shown in Figure 2.

Figure 2 Roles assigned to SAP HANA nodes

Each SAP HANA node has the NameServer and IndexServer processes. Table 1 provides the roles of the processes.

Table 1 SAP HANA roles

Process

Type

Description

NameServer

Configured Role

Initially configured roles

  • Master: functions as a global transaction coordinator, which coordinates global transactions and stores the global metadata of the information about the computing node cluster. A cluster has three master nodes configured, but only one of them is activated.
  • Slave: An SAP HANA cluster can have one or more slave nodes configured in a distributed architecture to cache metadata and perform database operations assigned by the master node. A cluster has multiple slave nodes.

Actual Role

Activated roles due to the election mechanism

  • Master: activated master node elected from the configured master nodes
  • Slave: nodes except master nodes

IndexServer

Configured Role

Initially configured roles

  • Worker: nodes that are running and performing database operations
  • Standby: takes over services of a faulty node. A cluster can have no or any number of standby nodes, and one standby node by default. In normal cases, software on the node is running, but the node's memory database has no data and cannot process services. The standby node takes over services of a faulty node automatically.

Actual Role

Activated roles due to the election mechanism

  • Master: node elected from worker nodes. It is the same as the master node in Name Server.
  • Slave: worker nodes except the master nodes
  • Standby: same as parameter Config Role in Index Server. Any node can be the standby node due to multiple times of service switchovers.

เราใช้คุกกี้เพื่อปรับปรุงไซต์และประสบการณ์การใช้ของคุณ การเรียกดูเว็บไซต์ของเราต่อแสดงว่าคุณยอมรับนโยบายคุกกี้ของเรา เรียนรู้เพิ่มเติม

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback