Upgrade or downgrade Hologres instance specifications - Hologres

This topic guides you through upgrading or downgrading the specifications of an instance's computing and storage resources.

Prerequisites

Your Alibaba Cloud account has no unpaid orders or overdue payments. To view relevant information, you can go to the Account Overview page.
Your Hologres instance is running as expected. For more information about the status of a Hologres instance, see Instances.

Storage resources
- Pay-as-you-go instances: Storage capacity automatically scales and is billed on a pay-as-you-go basis.
- Subscription instances: Storage resources are billed according to subscription rates. Scaling the storage capacity does not affect data reads/writes on the instance.
Computing resources
- General-purpose instances: Increasing or reducing computing resources will lead to service downtime lasting 2 to 5 minutes.
- Virtual warehouse instances:
  - Adjusting reserved computing resources does not affect the running of each virtual warehouse.
  - Increasing or reducing the number of gateway nodes leads to transient disconnection in all virtual warehouses. Reconnection is needed.
  - For information about, see Manage virtual warehouses.
- The behavior is consistent between subscription and pay-as-you-go instances.

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

Log on to the Hologres console. In the left navigation pane, click Instances.
On the Instances page, click the name of your Hologres instance.
On the Instance Details page, click Upgrade.
In the dialog box, click Upgrade.
During instance scale-up, you cannot perform any operations on the instance. We recommend doing this during off-peak hours and ensure your application supports automatic reconnections.
On the page that appears, set computing and storage resources as needed.
Note
Changing storage capacity is restricted to subscription instances.
Click Buy Now.
Scaling up an instance involves computing resource reallocation and metadata change. Wait 2 to 5 minutes for the operations to complete.

Log on to the Hologres console. In the left navigation pane, click Instances.
On the Instances page, click the name of your Hologres instance.
On the Instance Details page, click Downgrade.
In the dialog box, click Downgrade.
During instance scale-down, you cannot perform any operations on the instance. We recommend doing this during off-peak hours and ensure your application supports automatic reconnections.
On the upgrade/downgrade page, set computing and storage resources as needed.
Note
Changing storage capacity is restricted to subscription instances.
Click Buy Now.
Scaling down an instance involves computing resource reallocation and metadata change. Wait 2 to 5 minutes for the operations to complete.