Increasing the virtual disk size of AWS virtual machines

Last Updated : Jun 05, 2026 |

About this task

Use this procedure to increase the size of on an existing Avaya Aura® Device Services virtual machine deployed on AWS.

The following table shows the three virtual disks and the block devices of these disks, which are used by Avaya Aura® Device Services virtual machines on AWS.

Disk number

Block device

Desciption

Disk 1

/dev/sda1

Stores operating system and application software.

Disk 2

/dev/xvdb

Stores application logs.

Disk 3

/dev/xvdc

Stores application data.
Note:

You cannot reduce the disk size.

Procedure

  1. On the AWS console, navigate to Services > Compute, and then click EC2.
  2. On the EC2 Management Console page, click Instances.
  3. Select the instance to which you want to add storage.

    AWS displays instance details.

  4. Click the Description tab.
  5. In the Block devices field, select a disk for which you want to increase the size.

    The options are:

    • disk1

    • disk2

    • disk3

    Note:

    Avaya Aura® Device Services restart is required when you change the size of disk1. If you do not modify disk1, Avaya Aura® Device Services restart is not required.

  6. In the EBS ID field, click the ID.

    AWS displays the Volumes page with only the selected device.

  7. To update the storage on the EBS disk volume, click Actions > Modify Volume.
  8. In the Modify Volume window, in the Size field, enter the required disk size.
  9. Click Modify.
  10. In the Confirmation window, click Yes.
  11. In the Status window, click Close.
  12. If you updated disk1, do the following to restart the system for the changes to take effect:
    1. Log in to the virtual machine as an administrative user using an SSH connection.
    2. Run the sudo reboot command.

      If Avaya Aura® Device Services is running when you run this command, then Avaya Aura® Device Services will be gracefully shut down.

    Note:

    The process of increasing the disk size might take some time to complete. Monitor the size of the virtual disks and only proceed with any other disk-related activities after the size changes take effect.

Next Steps

Distribute the allocated free space between the logical volumes as described in Allocating unused disk space to logical volumes.