# System Requirements for Amazon DynamoDB

To back up and restore DynamoDB data on an Amazon application, verify that your environment has the required software and a firewall.

## Software Requirements

- Packages that are required on access nodes:

  - Cloud apps

  - Virtual Server Agent

- For information on supported Amazon EC2 instances as access nodes, see Supported Amazon EC2 Instance Families.

- Access nodes that you run backup and restore operations on must have one of the following operating systems:

### Linux

Operating system | Processor architecture
--- | ---
Amazon Linux 2023 AMI | 64-bit (Arm) (recommended) 64-bit (x86)
Amazon Linux 2 AMI (HVM) - Kernel 5.10, SSD Volume Type | 64-bit (Arm) (recommended) 64-bit (x86)
CentOS 8.3, 8.2, 8.1, 8.0, 7.9, 7.8, 7.7, 7.6, 7.5, or 7.4 | x64 Compatible processors
Commvault Cloud Access Node ARM BYOL: Amazon Linux AWS Graviton | 64-bit (Arm)
Commvault Cloud Access Node BYOL: Red Hat Enterprise Linux AWS Graviton | 64-bit (Arm)
Red Hat Enterprise Linux (RHEL) 9.x, 8.3, 8.2, 8.1, 8.0, 7.9, 7.8, 7.7, 7.6, 7.5, or 7.4 | x64 Compatible processors
Rocky Linux 9.x, 8.x | x64 Compatible processors

Note

For CentOS 8.x or RHEL 8.x instances: To install operating system packages that must enable automatic installation of Mono, register the instances with CentOS or Red Hat, respectively.

### Windows

Operating system | Processor architecture
--- | ---
Windows Server 2019, 2016, and 2012 | x64 Compatible processors

## Hard Drive

A minimum of 100 GB of disk space is recommended. If a staging directory is required on the access node, the actual space needed will depend on the database being backed up and the configured settings.

## Network Connectivity

- Access nodes must have Layer 3 network connectivity to the upstream MediaAgent on port 8403. If the MediaAgent and the access node are in different accounts or in different Virtual Private Clouds (VPCs), you can configure Amazon VPC peering. For information, see VPC peering basics in the AWS documentation.

- Access nodes must have connectivity to regional and global AWS service endpoints. For information, see Requirements for Connectivity to AWS Service Endpoints.

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