As needs and demands change, you might need to increase or decrease the capacity of your Cassandra database. If a database is growing quickly or exceeding capacity, add Capacity Units (CU) to expand the storage and capabilities of the database. If a database is underutilized or you remove large amounts of data, shrink the database to a minimum of one CU to reduce costs.An email is sent indicating that the database is was successfully resized, including a link to the database.
Note: You must be the owner of a database to resize it. Currently databases can only be increased in size to add more CUs.
You can increase your database by a maximum of three CUs. Multiple resize operations are required to add more CUs beyond the maximum number.
Tip: When viewing details for a database, click the ellipsis next to the database name to access the Resize option.
- Open a browser, navigate to the DataStax Astra console, and log in.
- From the Welcome page, click View Existing Databases. This option is available even if you have not personally created any databases, but members of your team created databases.
- From the Databases page, under Actions, click the ellipsis for the database you want to resize and select Resize.
- In the Resize Database window, enter the number of CUs that you want to resize the database to.
The total amount of storage and estimated cost changes dynamically based on the number of CUs entered.Important: You cannot modify the compute size of existing databases.
- Click Expand to begin resizing the database.
An estimate of the time required to resize the database displays. The database remains active while resizing, and the database status changes to Modifying.