Cloud Server Backup Service
Cloud Server Backup Service
- What's New
- Service Overview
- Getting Started
- User Guide
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Best Practices
- Using a Custom Script to Implement Consistent Backup for MySQL
- Using a Custom Script to Implement Consistent Backup for SAP HANA
- Using a Custom Script to Implement Consistent Backup for Other Linux Applications
- Troubleshooting a Custom Script Error
- Verifying the Application-Consistent Backup Result (Linux)
- Verifying the Application-Consistent Backup Result (Windows)
- Protecting SQL Server in Failover Cluster Mode
- Protecting SQL Server in Always on Availability Groups Mode
- Change History
- API Reference
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FAQs
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About Concepts
- What Is CSBS?
- What Are Full Backup and Incremental Backup?
- What Is Consistent Backup?
- What Are the Differences Between CSBS and VBS?
- What Is a Backup Policy?
- What Are the Differences Between Backup and Disaster Recovery?
- What Are the Differences Between Backup and Snapshot?
- Why Is the Disk Space Usage Displayed in the File System Different from the Backup Size?
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About Pricing
- How Is CSBS Billed?
- How Do Yearly/Monthly Resource Packages Function When I Have Bought More Than One?
- Are CSBS and VBS Resource Packages Interoperable Between CSBS and VBS?
- Why Am I Charged in Pay-per-use Mode Although I Have Purchased Resource Package?
- What Exactly Are the Function Package and the Storage Package?
- Will the CSBS Backups Displayed on the VBS Page Be Charged Repeatedly?
- How Do I Query CSBS Pay-Per-Use Billing Details?
- Why Is the Fee Deducted After a Backup Is Deleted?
- How Do I Disable CSBS?
- How Do I Stop CSBS from Charging?
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About Backup
- Does CSBS Support Backing Up All EVS Disks on an ECS?
- Do I Need to Stop the ECS Before Backing It Up?
- Can an ECS with Application Systems Be Backed Up?
- What Are the Minimum Backup Frequency and Maximum Number of Retained Backups Supported by CSBS?
- How Can I Distinguish Automatic Backups From Manual Backups?
- How Can I Configure a Backup Policy?
- Can I Choose to Back Up Only Some Partitions of a Disk?
- Does CSBS Support Cross-Region Backup for ECSs?
- Which Types of Databases Can Be Backed Up Using Database Server Backup?
- How Do I Select Among Database Server Backup, Cloud Server Backup, and Disk Backup?
- How Do I Migrate ECS Data Across Regions Using CSBS?
- Which Time Zone Is the Automatic Backup Time Based On?
- What Can I Do If a Backup Cannot Be Deleted?
- About Restoration
- Others
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About Concepts
- Troubleshooting
- Videos
- Glossary
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More Documents
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User Guide (Paris and Amsterdam Regions)
- Service Overview
- Getting Started
- Management Operations
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FAQs
- About Concepts
-
About Backup
- Does CSBS Support Backing Up All EVS Disks on an ECS?
- Do I Need to Stop the ECS Before Backing It Up?
- Can an ECS with Application Systems Be Backed Up?
- What Are the Minimum Backup Frequency and Maximum Number of Retained Backups Supported by CSBS?
- How Can I Distinguish Automatic Backups From Manual Backups?
- Does CSBS Support Cross-Region Backup for ECSs?
- About Restoration
- Others
- Troubleshooting Cases
- Change History
- API Reference (Paris and Amsterdam Regions)
-
User Guide (Paris and Amsterdam Regions)
- General Reference
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Help Center/
Cloud Server Backup Service/
User Guide (Paris and Amsterdam Regions) /
Service Overview/
Region and AZ
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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.
- A region is a physical data center, which is completely isolated to improve fault tolerance and stability. The region that is selected during resource creation cannot be changed after the resource is created.
- An AZ is a physical location where resources use independent power supplies and networks. A region contains one or more AZs that are physically isolated but interconnected through internal networks. Because AZs are isolated from each other, any fault that occurs in one AZ will not affect others.
Figure 1 shows the relationship between regions and AZs.
Selecting a Region
Select a region closest to your target users for lower network latency and quick access.
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.
Parent topic: Service Overview
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