securityGroupArns
Specifies the ARNs of the Amazon EC2 security groups that provide access to your file system's preferred subnet.
The security groups that you specify must be able to communicate with your file system's security groups. For information about configuring security groups for file system access, see the Amazon FSx for Windows File Server User Guide.
If you choose a security group that doesn't allow connections from within itself, do one of the following:
Configure the security group to allow it to communicate within itself.
Choose a different security group that can communicate with the mount target's security group.