Content Comparison

EDC + DDC + DSPM

CPU cores (x86_64 processor with speed of 2.2 GHz or more)
⚠️ The CPU must support the instructions SSE4.1 SSE4.2 AVX AVX2 FMA

8

16

20

RAM

32GB

64GB

80GB

Free SSD disk space and available Inodes
⚠️ K3s will be installed in /var/lib/rancher so space should be allocated there. We also need 10-20 GB free space at / and /var.

Minimum disk size: 500GB
Minimum available inodes: 32,768,000 for ext4

Minimum disk size: 600GB
Minimum available inodes: 39,321,600 for ext4

Minimum disk size: 700GB
Minimum available inodes: 45,875,200 for ext4

OS

We recommend Ubuntu 20.04 LTS Server (Focal Fossa), but you can also use:

• Ubuntu 22.04, 24.04

• RHEL 8.6, 8.7, 8.8 or 9.2

• CentOS 7.9

• Suse Linux 15.3

Please ensure that the OS installed is the Server Edition, regardless of the flavor or version, and that no Desktop Environment is installed.

⚠️ If you are using CentOS or RHEL please refer to the official K3s documentation and our troubleshooting guide for additional setup.

Root access to the server is required during deployment process and may be required for support tickets / troubleshooting.

• Please ensure the service user account accessing the server, will be deploying the K3s installer has sudo privilege to access and run the installer from the root.

Firewall

• The K3s server needs port 443/TCP to be open to allow the clients to access Synergy/Focus dashboard and API.

• Outbound internet access: In order to download the application artifacts (Docker images and binaries), updates and configuration files, the cluster needs a public internet connection with download speed of 40 Mbps or more and upload speed of 8 Mbps or more. To speed up the initial setup process it is recommended to have a download speed of 100 Mbps or more.

K3s version support

1.23, 1.24, 1.26

Other Requirements

Disable SWAP,
For hardened systems, see: Deploying Product in CIS hardened OS or K3s