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Resize an Amazon Elastic Block Store Instance | How To

Overview

If you need to resize an Amazon Elastic Block Store (EBS) instance for Alert Logic® because the instance that your product is on is not sized properly or you run out of disk space, follow the steps below.

You must stop your Amazon EBS–backed instance before you can change its instance type. Use the following procedure to resize an Amazon EBS–backed instance using the Amazon Web Services (AWS) Management Console.

Solution

  1. Log in to the Amazon EC2 console.

  2. Select Instances, and then select the instance.

  3. [EC2-Classic] If the instance has an associated Elastic IP address, write down the Elastic IP address and the instance ID shown in the details pane.

  4. Select Actions, select Instance State, and then click Stop.

  5. In the confirmation dialog box, choose Yes, Stop. It can take a few minutes for the instance to stop.
    [EC2-Classic] When the instance state becomes stopped, the Elastic IPPublic DNS (IPv4)Private DNS, and Private IPs fields in the details pane are blank to indicate that the old values are no longer associated with the instance.

  6. With the instance still selected, select Actions, select Instance Settings, and then choose Change Instance Type. Note that this action is disabled if the instance state is not stopped.

  7. In the Change Instance Type dialog box, do the following:

    a. From Instance Type, select the instance type that you want.

    b. (Optional) If the instance type that you selected supports EBS–optimization, select EBS.

    c. Choose Apply to accept the new settings.

  8. To restart the stopped instance, select the instance, choose Actions, select Instance State, and then click Start.

  9. In the confirmation dialog box, click Yes, Start.

  10. [EC2-Classic] When the instance state is running, the Public DNS (IPv4)Private DNS, and Private IPs fields in the details pane contain the new values that we assigned to the instance. If your instance had an associated Elastic IP address, you must re-associate it as follows:

    a. In the navigation pane, choose Elastic IPs.

    b. Select the Elastic IP address that you wrote down before you stopped the instance.

    c. Choose Actions and then choose Associate address.

    d. From Instance, select the instance ID that you wrote down before you stopped the instance, and then choose Associate.
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