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- Service Overview
- Getting Started
- User Guide
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Getting Started
-
API Description
-
VBS Backups
- Creating a VBS Backup
- Deleting a VBS Backup (Deprecated)
- Restoring a Disk Using a VBS Backup
- Creating a VBS Backup (Native OpenStack API) (Deprecated)
- Querying Summary Information About VBS Backups (Native OpenStack API) (Deprecated)
- Querying Details About VBS Backups (Native OpenStack API) (Deprecated)
- Querying Details About a VBS Backup (Native OpenStack API) (Deprecated)
- Querying the Job Status
- Deleting a VBS Backup (Native OpenStack API) (Deprecated)
- Restoring a Disk Using a VBS Backup (Native OpenStack API) (Deprecated)
- Sharing a Backup
- Canceling Sharing of a Backup
- Querying Backup Sharings
- Counting Backup Sharings
- Querying Details About a Backup Sharing
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Backup Policies
- Creating a Backup Policy
- Querying Backup Policies
- Modifying a Backup Policy
- Deleting a Backup Policy
- Associating Resources with a Backup Policy
- Disassociating Resources from a Backup Policy
- Executing a Backup Policy At Once
- Enabling or Disabling a Backup Policy
- Querying Backup Jobs Triggered by a Backup Policy
- Adding a Tag to a Backup Policy
- Removing a Tag from a Backup Policy
- Querying All Backup Policy Tags
- Querying Tags of a Backup Policy
- Batch Updating or Removing Tags of a Backup Policy
- Querying Backup Policies by Tag
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VBS Backups
- Permissions Policies and Supported Actions
- Appendix
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FAQs
- What Is Volume Backup Service?
- What Is a Backup Policy?
- What Are the Differences Between Backup and Disaster Recovery?
- How Do I Purchase and Renew VBS?
- What Are the Differences Between CSBS and VBS?
- Does VBS Support Simultaneous Backup of All EVS Disks on a Server?
- Do I Need to Stop the Server Before Backing Up EVS Disks on a Server Using VBS?
- How Long Does VBS Take to Back Up an EVS Disk?
- Does VBS Support Cross-Region Backup and Restoration?
- Do I Need to Stop the Server Before Restoring EVS Disk Data with a VBS Backup?
- What Is the Charging Mode of EVS Disks Created with a VBS Backup?
- Why Are CSBS Backups Displayed on the VBS Backup Page?
- Can a VBS Backup of a System Disk Be Used to Restore the System Disk of an ECS?
- Can I Use a VBS Backup to Restore an EVS Disk Whose Capacity Has Been Expanded?
- Is There a Quota Limit on the Number of Backups?
- What Can I Do In Case of Exceptions in VBS?
- Why Add Tags to a VBS Backup or Backup Policy?
- Does Backup Can Be Performed Several Times a Day?
- Can a Disk Only Be Associated With One Policy?
- What Are Full Backup and Incremental Backup?
- What Are the Differences Between Backups and Snapshots?
- Why Is the Remaining Space Not Changed After a Backup Is Deleted?
- Why Is the Disk Space Usage Displayed in the File System Different from the Backup Size?
- Why Does the Retention Rule Not Take Effect After Being Modified?
- How Do I Disable Automatic Backup?
- Videos
- Glossary
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More Documents
-
User Guide (Paris)
- Service Overview
- Getting Started
- Operation Guide
-
FAQs
- Does VBS Support Simultaneous Backup of All EVS Disks on a Server?
- Do I Need to Stop the Server Before Backing Up EVS Disks on a Server Using VBS?
- Does VBS Support Cross-Region Backup and Restoration?
- Do I Need to Stop the Server Before Restoring EVS Disk Data with a VBS Backup?
- What Is the Charging Mode of EVS Disks Created with a VBS Backup?
- Why Are CSBS Backups Displayed on the VBS Backup Page?
- Can a VBS Backup of a System Disk Be Used to Restore the System Disk of an ECS?
- Can I Use a VBS Backup to Restore an EVS Disk Whose Capacity Has Been Expanded?
- Is There a Quota Limit on the Number of Backups?
- What Can I Do In Case of Exceptions in VBS?
- Can a Disk Only Be Associated With One Policy?
- What Are Full Backup and Incremental Backup?
- What Are the Differences Between Backups and Snapshots?
- Why Is the Remaining Space Not Changed After a Backup Is Deleted?
- Troubleshooting Cases
- Change History
-
API Reference (Paris)
- Before You Start
- API Overview
- Calling APIs
- Getting Started
-
API Description
-
VBS Backups
- Creating a VBS Backup
- Deleting a VBS Backup (Deprecated)
- Restoring a Disk Using a VBS Backup
- Creating a VBS Backup (Native OpenStack API)
- Querying Summary Information About VBS Backups (Native OpenStack API)
- Querying Details About VBS Backups (Native OpenStack API)
- Querying Details About a VBS Backup (Native OpenStack API)
- Querying the Job Status
- Deleting a VBS Backup (Native OpenStack API)
- Restoring a Disk Using a VBS Backup (Native OpenStack API)
-
Backup Policies
- Creating a Backup Policy
- Querying Backup Policies
- Modifying a Backup Policy
- Deleting a Backup Policy
- Associating Resources with a Backup Policy
- Disassociating Resources from a Backup Policy
- Executing a Backup Policy At Once
- Enabling or Disabling a Backup Policy
- Querying Backup Jobs Triggered by a Backup Policy
-
VBS Backups
- Appendix
- Change History
-
User Guide (Paris)
- 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. Select a region and 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. Regions within the Chinese mainland provide the same infrastructure, BGP network quality, as well as resource operations and configurations. Therefore, if your target users are on the Chinese mainland, you do not need to consider the network latency differences when selecting a region.
- 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 Europe, select the EU-Paris 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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