Home > Storage > PowerFlex > White Papers > Dell APEX Block Storage for AWS: MongoDB using Kubernetes and PowerFlex CSI > AWS EBS storage for PowerFlex configuration
Dell APEX Block Storage for AWS provides two options - EBS and Instance Store based deployment. This section describes the EBS option being used. This example uses a two-layer deployment architecture that is deployed in the US East (North Virginia) region with three AZs. An Amazon EC2 c5n.9xlarge instance type, which is used as storage optimized instance, is instantiated on each AZ using a Red Hat Enterprise Linux 8.4-based AMI. General purpose SSD based EBS (GP3) volumes back up these instances. Each c5n-9xlarge SDS instance is attached with five EBS volumes, each of which contributes 2 TB to the PowerFlex storage capacity. With Amazon EBS storage volumes, EC2 instances can be powered off and the data persists. The PowerFlex SDS nodes are configured across AZs in a single protection domain.
A single pool is created using all the storage devices in a protection domain. The PowerFlex SDC service is installed on the Amazon EC2 c5n.18xlarge instance type running on different AZs. The MongoDB databases run on SDC instances in a private subnet.
The following figure shows the placement of Amazon EC2 instances spanning across three AZs and the instance type used for this deployment:
The following figure shows five EBS volumes, each with a 2TB capacity attached to the Amazon EC2 instance serving as PowerFlex SDS:
For more information about EBS Instance configuration, see Table 5 and Table 6.