Which configuration items can I adjust in TencentDB for SQL Server?
TencentDB for SQL Server supports quick adjustment of the instance architecture, version, and specifications in the console, providing flexible scaling operations. You can elastically adjust the configurations of SQL Server instances according to your actual business conditions (initial stage, rapid development, peak hours, off-peak hours), to better meet the needs of resource utilization and real-time cost optimization. For more information, see Overview of Instance Configuration Adjustment.
Can I expand/reduce the disk space of a TencentDB for SQL Server instance?
TencentDB for SQL Server two-node (formerly high-availability/cluster edition) local disk instance: The disk space can be expanded and reduced.
TencentDB for SQL Server two-node (formerly high-availability/cluster edition) cloud disk instance: The disk space can only be expanded.
TencentDB for SQL Server single-node (formerly basic edition) instance: The disk space can only be expanded.
Can I upgrade/downgrade the CPU/memory specifications of a TencentDB for SQL Server instance?
The CPU/memory specifications of TencentDB for SQL Server support upgrades and downgrades. For more information, see Adjusting Instance Specifications.
Is the service still available when the specification of a TencentDB for SQL Server single-node (formerly basic edition) instance is changed?
When the configuration of a single-node (formerly basic edition) instance is adjusted (CPU/memory specification upgrade/downgrade as well as disk space expansion), the instance will be restarted and remain unavailable for about three minutes. Therefore, perform this operation during off-peak hours.
Will the service be interrupted when the specification of a TencentDB for SQL Server two-node (formerly high-availability/cluster edition) is changed?
During the specification upgrade and disk space expansion process of a two-node (formerly high-availability/cluster edition) instance, if in-place update conditions are met, the service will not experience any momentary disconnections, and the adjustment will take effect immediately without impacting the business. If a migration upgrade is required, the configuration will be upgraded by migrating data. The more data, the longer the migration time. During the migration, the instance will remain accessible. After the migration, a switch will occur, causing a brief database connection disruption. Ensure that your business has a reconnection mechanism. During the connection disruption, most database, account, and network operations cannot be performed, so perform this operation during off-peak hours.
During the disk space reduction process of a two-node (formerly high-availability/cluster edition) instance, the service will not experience any momentary disconnections, and the adjustment will take effect immediately without impacting the business.
During the specification downgrade process of a two-node (formerly high-availability/cluster edition) instance, the instance will be unavailable for about one minute. Perform this operation during off-peak hours.
For more information on configuration adjustment scenarios and impacts, see Adjusting Instance Specifications.
How do I perform disk space expansion/reduction and specification upgrade/downgrade in TencentDB for SQL Server?
Disk space and specification adjustment refers to changing the current specifications of a TencentDB for SQL Server instance from Specification A to Specification B. Choose the corresponding instance in the SQL Server console, click Operation, and then click Adjust Configuration. On the configuration adjustment page, select the target specifications and effective time as needed, and pay the fees. The system will automatically update the instance specifications. For more information, see Adjusting Instance Specifications.
How are TencentDB for SQL Server disk space expansion/reduction and specification upgrade/downgrade fees calculated?
Monthly subscribed instance:
Upgrade fees: Payment amount = (price of target specification - price of original specification) x remaining validity period
Downgrade fees: Refund amount = Remaining value of original configuration - purchase price of new configuration
For a pay-as-you-go instance:
Upgrade fees: After upgrade, the instance will be billed based on the new instance specifications starting from the next billing cycle.
Downgrade costs: After downgrading, the instance will be billed based on the new specifications starting from the next billing cycle. For more information, see Adjustment of instance fee description.
Will the read-only instance configuration be upgraded automatically when the primary instance configuration is upgraded?
Read-only instances can only be upgraded manually.