Hologres:Upgrade or downgrade instance specifications

Usage notes

• For a pay-as-you-go or subscription instance, the instance is unavailable when you upgrade or downgrade the specifications of computing resources of the instance. We recommend that you upgrade or downgrade the specifications of computing resources of an instance during off-peak hours and make sure that your application supports automatic reconnections. The computing resource upgrade or downgrade involves operations such as computing resource reallocation and metadata change. You may need to wait 2 to 5 minutes for the upgrade or downgrade. The time may be longer in some special scenarios. For example, the amount of metadata is large, a large number of data definition language (DDL) statements are involved, or Data Security Guard is enabled. The upgrade duration differs based on the amount of data stored in Hologres instances. Service interruption caused by instance upgrades is not defined in the service level agreement (SLA).

• For a pay-as-you-go instance, you do not need to upgrade or downgrade the specifications of storage resources of the instance, and you are charged based on your actual storage resource usage.

• For a subscription instance, upgrading or downgrading the specifications of storage resources of the instance means increasing or reducing storage quotas of the instance. During the upgrade or downgrade, you can use the instance as expected, such as querying the instance and writing data to the instance.

Billing rules

For information about the billing rules of Hologres instances, see Billing overview.

Upgrade the specifications of a Hologres instance

1. Log on to the Hologres console. In the left-side navigation pane, click Instances.

2. On the Instances page, click the name of your Hologres instance.

3. On the Instance Details page, click Upgrade.

4. In the message that appears, click Upgrade.

   You cannot perform operations on the instance during the upgrade. We recommend that you upgrade the specifications of computing resources of an instance during off-peak hours and make sure that your application supports automatic reconnections. Upgrading the specifications of computing resources of an instance involves computing resource reallocation and metadata change. You may need to wait 2 to 5 minutes for the operations to complete.

5. On the Hologres ( Subscription ) | Upgrade/Downgrade page, configure the Computing Resources, Standard, and Infrequent Access parameters.

   Note

   You can configure the Standard and Infrequent Access parameters only for a subscription instance.

6. Read the terms of service, select the check box, and then click Buy Now.

Downgrade the specifications of a Hologres instance

1. Log on to the Hologres console. In the left-side navigation pane, click Instances.

2. On the Instances page, click the name of your Hologres instance.

3. On the Instance Details page, click Downgrade.

4. In the message that appears, click Downgrade.

   You cannot perform operations on the instance during the downgrade. We recommend that you downgrade the specifications of computing resources of an instance during off-peak hours and make sure that your application supports automatic reconnections. Downgrading the specifications of computing resources of an instance involves computing resource reallocation and metadata change. You may need to wait 2 to 5 minutes for the operations to complete.

5. On the Hologres ( Subscription ) | Upgrade/Downgrade page, configure the Computing Resources, Standard, and Infrequent Access parameters.

   Note

   You can configure the Standard and Infrequent Access parameters only for a subscription instance.

6. Read the terms of service, select the check box to confirm that you have read the terms of service, and then click Buy Now.