- What's New
-
Service Overview
- DSS Infographics
- What Is DSS?
- Region and AZ
- Storage Pool Types and Performance
- Storage Pool Capacity Description
- DSS Disks
- DSS Three-Copy Redundancy
- Device Types and Usage Instructions
- Shared Disks and Usage Instructions
- Disk Encryption
- Disk Backup
- DSS and Other Services
- Billing
- Permissions
- Constraints
- Change History
-
Getting Started
- Operation Procedure
- Step 1: Apply for a Storage Pool
- Step 2: Create a Disk
- Step 3: Attach a Disk
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Step 4: Initialize a Data Disk
- Introduction to Data Disk Initialization Scenarios and Partition Styles
- Initializing a Data Disk in Windows (Windows Server 2008)
- Initializing a Data Disk in Windows (Windows Server 2016)
- Initializing a Data Disk in Linux (fdisk)
- Initializing a Data Disk in Linux (parted)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2008)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2012)
- Initializing a Data Disk Greater Than 2 TB in Linux (parted)
- Change History
-
User Guide
- Permissions Management
- Storage Pool Management
-
Disk Management
- Detaching a Disk
- Attaching an Existing Disk
- Deleting a Disk
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Expanding the Capacity of a Disk
- Introduction to Expansion Scenarios
- Expanding an In-use Disk
- Expanding an Available Disk
- Extending Partitions and File Systems on Windows
- Extending Partitions and File Systems on Linux (fdisk)
- Extending Partitions and File Systems on Linux (parted)
- Extending Partitions and File Systems of a SCSI Data Disk on Linux (fdisk)
- Extending Partitions and File Systems of a System Disk on Linux (fdisk)
- Managing Encrypted Disks
- Managing Shared Disks
- Managing Backups
- Change History
- API Reference
-
FAQs
- What Are the Risks of Not Expanding the Storage Pool Capacity?
- How Many Statuses Does a Storage Pool Have?
- How Many Statuses Does a Disk Have?
- Troubleshooting and Impacts on the DSS Usage
- Can I Attach a Disk to Multiple Servers?
- Will Data in the DSS Disk Be Lost When the DSS Disk Is Detached?
- What Should I Do If an Error Occurs on My DSS Disk?
- How Can I Test DSS Disk Performance?
- What Are the Restrictions on Attaching a Disk to an ECS?
- What Are the Precautions for Detaching a Disk from an ECS?
- Why My Disk Cannot Be Attached to a Server?
- Can the Disk Space Usage Be Reduced If I Delete Files on a Server?
- Videos
- Glossary
-
More Documents
-
User Guide (Paris and Amsterdam Regions)
- Introduction
-
Quick Start
- Operation Procedure
- Step 1: Apply for a Storage Pool
- Step 2: Create a Disk
- Step 3: Attach a Disk
-
Initialize a Data Disk
- Introduction to Data Disk Initialization Scenarios and Partition Styles
- Initializing a Data Disk in Windows (Windows Server 2008)
- Initializing a Data Disk in Windows (Windows Server 2016)
- Initializing a Data Disk in Linux (fdisk)
- Initializing a Data Disk in Linux (parted)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2008)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2012)
- Initializing a Data Disk Greater Than 2 TB in Linux (parted)
- Obtaining the Domain Name
- Obtaining the Region
-
Management
- Storage Pool Management
-
Disk Management
- Detaching a Disk
- Deleting a Disk
-
Expanding the Capacity of a Disk
- Introduction to Expansion Scenarios
- Expanding an In-use Disk
- Expanding an Available Disk
- Performing Post-Expansion Operations for a Windows Disk
- Performing Post-Expansion Operations for a Disk in Linux (fdisk)
- Performing Post-Expansion Operations for a Disk in Linux (parted)
- Performing Post-Expansion Operations for a SCSI Data Disk in Linux (fdisk)
- Performing Post-Expansion Operations for a System Disk in Linux (fdisk)
- Managing an Encrypted Disk
- Managing a Shared Disk
- Managing a Backup
-
FAQs
- What Are the Risks of Not Expanding the Storage Pool Capacity?
- How Many Statuses Does a Storage Pool Have?
- How Many Statuses Does a Disk Have?
- Troubleshooting and Impacts on the DSS Usage
- Can I Attach a Disk to Multiple Servers?
- Will Data in the DSS Disk Be Lost When the DSS Disk Is Detached?
- What Should I Do If an Error Occurs on My DSS Disk?
- What Are the Restrictions on Attaching a Disk to an ECS?
- What Are the Precautions for Detaching a Disk from an ECS?
- Why My Disk Cannot Be Attached to a Server?
- Change History
-
User Guide (Paris and Amsterdam Regions)
- General Reference
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Region and AZ
Concept
A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.
- Regions are divided based on geographical location and network latency. Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region. Regions are classified into universal regions and dedicated regions. A universal region provides universal cloud services for common tenants. A dedicated region provides specific services for specific tenants.
- An AZ contains one or more physical data centers. Each AZ has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters. AZs within a region are interconnected using high-speed optical fibers, to support cross-AZ high-availability systems.
Figure 1 shows the relationship between regions and AZs.
Huawei Cloud provides services in many regions around the world. You can select a region and an AZ based on requirements. For more information, see Huawei Cloud Global Regions.
Selecting a Region
When selecting a region, consider the following factors:
- Location
It is recommended that you select the closest region for lower network latency and quick access.
- If your target users are in Asia Pacific (excluding the Chinese mainland), select the CN-Hong Kong, AP-Bangkok, or AP-Singapore region.
- If your target users are in Africa, select the AF-Johannesburg region.
- If your target users are in Latin America, select the LA-Santiago region.
NOTE:
The LA-Santiago region is located in Chile.
- Resource price
Resource prices may vary in different regions. For details, see Product Pricing Details.
Selecting an AZ
When deploying resources, consider your applications' requirements on disaster recovery (DR) and network latency.
- For high DR capability, deploy resources in different AZs within the same region.
- For lower network latency, deploy resources in the same AZ.
Regions and Endpoints
Before you use an API to call resources, specify its region and endpoint. For more details, see Regions and Endpoints.
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