- Product Introduction
- Tutorial
- Release Notes and Announcements
- Public Image Updates
- Announcements
- Price Reduction in Selected Availability Zones
- WebShell Proxy IP Addresses Updates
- Windows Server 2003 System Images End of Support Announcement
- Pay-as-you-go Price Adjustments for Standard S3 CVMs in the Silicon Valley Region
- Vulnerability repairing for Linux images
- Windows Server 2008 R2 Enterprise Edition SP1 64-bit Images End of Support Announcement
- Upgrading Virtio network card drive for Windows CVMs
- Solution to Tomcat Start Failure on Ubuntu14.04
- Stopping supporting for Ubuntu 10.04 images
- About Configuration of Security Group Port 53
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Guide Overview
- Use Limits Overview
- Instances
- Creating Instances
- Batch Sequential Naming or Pattern String-Based Naming
- Generating API Explorer Reusable Scripts to Create Instances
- Resource Adjustment
- Query Info
- Renaming Instances
- Resetting Instance Password
- Management instance IP address
- Change Instance Subnet
- Change Security Group
- Search Instances
- Export Instances
- Renewing Instances
- Querying the Repossession Status of a Spot Instance
- Shutdown Instances
- Logging into Linux Instance
- Restarting Instances
- Logging into Windows instance
- Reinstalling System
- Terminating Instances
- Instance Repossession
- Spot Instances
- No Charges When Shut Down for Pay-as-You-Go Instances
- Managing Roles
- Starting Up Instances
- Reserved Instances
- Images
- Service Migration
- Online Migration
- Overview
- Online Migration Tool
- Tencent Cloud Migration Tutorial
- Migration Tutorial for Different Source Environments
- Migrating AWS EC2 Data to Tencent Cloud
- Migrating Alibaba Cloud ECS Data to Tencent Cloud
- Migrating Huawei Cloud ECS Data to Tencent Cloud
- Migrating UCloud UHost Data to Tencent Cloud
- Migrating Baidu Cloud BCC Data to Tencent Cloud
- Migrating VMWare Virtual Machine Data to Tencent Cloud
- Migrating China Telecom e-Cloud Cloud Server Data to Tencent Cloud
- Offline Migration
- Contact Us
- Online Migration
- Cloud Block Storage
- Network
- Security
- Security Groups
- Protection of Sensitive Operations
- Managing Login Password
- Managing SSH keys
- Spread Placement Group
- Unblocking Port 25
- Tags
- Monitoring and Alarms
- Console Example
- Best Practice
- Best Practices
- Migrating CVM Instances
- Setting up a Website
- Building an Environment
- Building a Website
- Building an Application
- Data Backup
- Uploading Local Files to CVM
- Copying Local Files to CVMs
- Uploading Files from MacOS to Windows CVM Using MRD
- Uploading Files from Linux to Windows CVM using RDP
- Uploading Files from Linux to a CVM Using FTP
- Uploading files via WinSCP to a Linux CVM from Windows
- Uploading Files from Windows to a CVM Using FTP
- Uploading Files from Linux or MacOS to Linux CVM via SCP
- Uploading Files from Windows to a Windows CVM via MSTSC
- Other CVM Operations
- Network Performance Test
- Recovering Data on Linux CVMs
- Building a Visual GUI
- Changing Kernel of a Linux Instance Manually
- Managing Disk Space on Windows CVMs
- Using RemoteFx to Redirect USB Devices in Windows
- Using USB/IP to Share USB Devices in Linux
- Using AVX-512 Instructions to Accelerate AI Applications on CVM
- OPS Guide
- Mount Data Disks
- Environment Configurations
- Installing Software
- Accelerating software package download and update with Tencent Cloud software source
- Install Software via Apt-get under Ubuntu Environment
- Install Software via YUM under CentOS Environment
- Install Software via zypper under SUSE Environment
- Switching CentOS 6 Source to YUM Repository
- Installing chronyd Service on CentOS 8
- User Data
- System-related
- Others
- Troubleshooting Methods
- Instance-Related Failures
- CVM Login Failures
- Windows Instance Login Failures
- Windows Instance Login Failures
- An authentication error occurred when you tried to log in to a Windows instance remotely
- Failed to Reset the CVM Password or the CVM Password Is Invalid
- Windows instance: no remote Desktop license server can provide license
- Requires network-level identity verification
- Problems occurred when you tried to log in to a Windows CVM remotely on Mac
- Failed to log in to a Windows CVM due to high CPU and memory usage
- Failed to connect to a remote computer through Remote Desktop
- Credentials Not Work
- Connection to a Windows CVM through Remote Desktop was denied
- Remote Login Failure Due To Port Issues
- Linux Instance Login Failures
- Linux Instance Login Failures
- Unable to Log in to a Linux Instance via SSH Key
- Failing to log in to a Linux CVM due to high CPU and memory usage
- Remote Login Failure due to Port Issues
- VNC Login Error (Module is Unknown)
- VNC Login Error (Account Locked due to XXX Failed Logins)
- VNC Login Error (Login Failed with Correct Password)
- VNC or SSH Login Error (Permission Denied)
- Login Failure Due to Server Isolation
- Login Failure Due to High Bandwidth Occupation
- Remote Connect Failure Due to Security Group Settings
- Failed to shut down or restart a CVM
- Network Namespace Creation Failure
- Linux CVM Memory Issues
- Network Related Failures
- Downloading Remote Desktop for Mac
- Instance-Related Failures
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Region APIs
- Instance APIs
- DescribeInstances
- DescribeInstanceFamilyConfigs
- DescribeZoneInstanceConfigInfos
- DescribeInstanceTypeConfigs
- DescribeInstancesOperationLimit
- DescribeInstanceVncUrl
- InquiryPriceRunInstances
- InquiryPriceResetInstance
- InquiryPriceResetInstancesType
- InquiryPriceResizeInstanceDisks
- RunInstances
- StartInstances
- RebootInstances
- StopInstances
- ResetInstance
- TerminateInstances
- ResetInstancesType
- ResizeInstanceDisks
- ResetInstancesPassword
- ModifyInstancesAttribute
- ModifyInstancesProject
- InquirePricePurchaseReservedInstancesOffering
- DescribeReservedInstancesConfigInfos
- DescribeInstancesStatus
- Placement Group APIs
- Image APIs
- Key APIs
- Security Group APIs
- Network APIs
- Data Types
- Error Codes
- FAQs
- Service Agreement
- Glossary
- Product Introduction
- Tutorial
- Release Notes and Announcements
- Public Image Updates
- Announcements
- Price Reduction in Selected Availability Zones
- WebShell Proxy IP Addresses Updates
- Windows Server 2003 System Images End of Support Announcement
- Pay-as-you-go Price Adjustments for Standard S3 CVMs in the Silicon Valley Region
- Vulnerability repairing for Linux images
- Windows Server 2008 R2 Enterprise Edition SP1 64-bit Images End of Support Announcement
- Upgrading Virtio network card drive for Windows CVMs
- Solution to Tomcat Start Failure on Ubuntu14.04
- Stopping supporting for Ubuntu 10.04 images
- About Configuration of Security Group Port 53
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Guide Overview
- Use Limits Overview
- Instances
- Creating Instances
- Batch Sequential Naming or Pattern String-Based Naming
- Generating API Explorer Reusable Scripts to Create Instances
- Resource Adjustment
- Query Info
- Renaming Instances
- Resetting Instance Password
- Management instance IP address
- Change Instance Subnet
- Change Security Group
- Search Instances
- Export Instances
- Renewing Instances
- Querying the Repossession Status of a Spot Instance
- Shutdown Instances
- Logging into Linux Instance
- Restarting Instances
- Logging into Windows instance
- Reinstalling System
- Terminating Instances
- Instance Repossession
- Spot Instances
- No Charges When Shut Down for Pay-as-You-Go Instances
- Managing Roles
- Starting Up Instances
- Reserved Instances
- Images
- Service Migration
- Online Migration
- Overview
- Online Migration Tool
- Tencent Cloud Migration Tutorial
- Migration Tutorial for Different Source Environments
- Migrating AWS EC2 Data to Tencent Cloud
- Migrating Alibaba Cloud ECS Data to Tencent Cloud
- Migrating Huawei Cloud ECS Data to Tencent Cloud
- Migrating UCloud UHost Data to Tencent Cloud
- Migrating Baidu Cloud BCC Data to Tencent Cloud
- Migrating VMWare Virtual Machine Data to Tencent Cloud
- Migrating China Telecom e-Cloud Cloud Server Data to Tencent Cloud
- Offline Migration
- Contact Us
- Online Migration
- Cloud Block Storage
- Network
- Security
- Security Groups
- Protection of Sensitive Operations
- Managing Login Password
- Managing SSH keys
- Spread Placement Group
- Unblocking Port 25
- Tags
- Monitoring and Alarms
- Console Example
- Best Practice
- Best Practices
- Migrating CVM Instances
- Setting up a Website
- Building an Environment
- Building a Website
- Building an Application
- Data Backup
- Uploading Local Files to CVM
- Copying Local Files to CVMs
- Uploading Files from MacOS to Windows CVM Using MRD
- Uploading Files from Linux to Windows CVM using RDP
- Uploading Files from Linux to a CVM Using FTP
- Uploading files via WinSCP to a Linux CVM from Windows
- Uploading Files from Windows to a CVM Using FTP
- Uploading Files from Linux or MacOS to Linux CVM via SCP
- Uploading Files from Windows to a Windows CVM via MSTSC
- Other CVM Operations
- Network Performance Test
- Recovering Data on Linux CVMs
- Building a Visual GUI
- Changing Kernel of a Linux Instance Manually
- Managing Disk Space on Windows CVMs
- Using RemoteFx to Redirect USB Devices in Windows
- Using USB/IP to Share USB Devices in Linux
- Using AVX-512 Instructions to Accelerate AI Applications on CVM
- OPS Guide
- Mount Data Disks
- Environment Configurations
- Installing Software
- Accelerating software package download and update with Tencent Cloud software source
- Install Software via Apt-get under Ubuntu Environment
- Install Software via YUM under CentOS Environment
- Install Software via zypper under SUSE Environment
- Switching CentOS 6 Source to YUM Repository
- Installing chronyd Service on CentOS 8
- User Data
- System-related
- Others
- Troubleshooting Methods
- Instance-Related Failures
- CVM Login Failures
- Windows Instance Login Failures
- Windows Instance Login Failures
- An authentication error occurred when you tried to log in to a Windows instance remotely
- Failed to Reset the CVM Password or the CVM Password Is Invalid
- Windows instance: no remote Desktop license server can provide license
- Requires network-level identity verification
- Problems occurred when you tried to log in to a Windows CVM remotely on Mac
- Failed to log in to a Windows CVM due to high CPU and memory usage
- Failed to connect to a remote computer through Remote Desktop
- Credentials Not Work
- Connection to a Windows CVM through Remote Desktop was denied
- Remote Login Failure Due To Port Issues
- Linux Instance Login Failures
- Linux Instance Login Failures
- Unable to Log in to a Linux Instance via SSH Key
- Failing to log in to a Linux CVM due to high CPU and memory usage
- Remote Login Failure due to Port Issues
- VNC Login Error (Module is Unknown)
- VNC Login Error (Account Locked due to XXX Failed Logins)
- VNC Login Error (Login Failed with Correct Password)
- VNC or SSH Login Error (Permission Denied)
- Login Failure Due to Server Isolation
- Login Failure Due to High Bandwidth Occupation
- Remote Connect Failure Due to Security Group Settings
- Failed to shut down or restart a CVM
- Network Namespace Creation Failure
- Linux CVM Memory Issues
- Network Related Failures
- Downloading Remote Desktop for Mac
- Instance-Related Failures
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Region APIs
- Instance APIs
- DescribeInstances
- DescribeInstanceFamilyConfigs
- DescribeZoneInstanceConfigInfos
- DescribeInstanceTypeConfigs
- DescribeInstancesOperationLimit
- DescribeInstanceVncUrl
- InquiryPriceRunInstances
- InquiryPriceResetInstance
- InquiryPriceResetInstancesType
- InquiryPriceResizeInstanceDisks
- RunInstances
- StartInstances
- RebootInstances
- StopInstances
- ResetInstance
- TerminateInstances
- ResetInstancesType
- ResizeInstanceDisks
- ResetInstancesPassword
- ModifyInstancesAttribute
- ModifyInstancesProject
- InquirePricePurchaseReservedInstancesOffering
- DescribeReservedInstancesConfigInfos
- DescribeInstancesStatus
- Placement Group APIs
- Image APIs
- Key APIs
- Security Group APIs
- Network APIs
- Data Types
- Error Codes
- FAQs
- Service Agreement
- Glossary
Overview
Reserved instance (RI) is a billing discount applied to the use of pay-as-you-go CVM instances under your account. These CVM instances must exactly match attributes of the RI you purchased to benefit from the billing discount during the RI term. RI provide you with a significant discount compared to pay-as-you-go billing.
Note：
RI is currently in beta. Prices published here are for reference only. Refer to your bills for final prices. Contact sales if you need further help.
Currently, RIs are non-refundable.
Configurations of an RI cannot be changed after purchase. The RI billing discount will no longer apply to the matched instance if you change its configurations.
The RI billing discount will still apply to matched CVM instances even after they are proactively or forcibly shut down.
Release schedule
Currently, RIs are only offered to beta users. To use it, submit an application to be an RI beta user.
Attributes
- Region: the physical location of an IDC, such as Silicon Valley.
- Availability zone: a Tencent Cloud IDC with independent power supply and network in the above region, such as Silicon Valley Zone 1.
- Instance type: a Tencent Cloud CVM instance family type, such as Standard.
- Specification: RI specifications, such as S4.SMALL.
- Operating system: Linux OS
Note：
The pay-as-you-go CVM instances must exactly match RI attributes to benefit from the billing discount during the RI term.
Concept comparison
| Item | RI | Pay-as-you-go instance |
|---|---|---|
| Concept | A discount for pay-as-you-go instances. | An instance purchased using the pay-as-you-go billing option, i.e., a running virtual machine. |
| Usage | RIs cannot be used separately; instead, it can only be used with matched pay-as-you-go instances to offset part of the pay-as-you-go bill. | CVMs can be managed and configured independently as a simple web server or as part of a powerful cloud solution together with other Tencent Cloud products. |
Use limits
To check availability zones that support RIs, please use the DescribeReservedInstancesOfferings API.
Operating system: currently, RI only supports Linux CVM instances.
Payment method: there are three payment options, namely All Upfront, Partial Upfront, and No Upfront.
Terms: 1 year
Quota: each user can have up to 20 RIs in one availability zone.
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