Reference hardware configuration¶

The following hardware configuration is used as a reference to deploy Mirantis Container Cloud with bare metal Container Cloud clusters with Mirantis Kubernetes Engine.

Reference hardware configuration for Container Cloud management and managed clusters on bare metal¶
Server role	Management cluster	Managed cluster
# of servers 0	3 1	6 2
CPU sockets	1	1
RAM, GB	128	128
SSD system, GB 3	1x 960	1x 960
SSD/HDD storage, GB 4	1x 1900	2x 1900
Onboard LAN ports	2	2
Discrete NICs	2	2
Total LAN ports 5	6	6

0

The Container Cloud reference architecture uses the following hardware models:

Server - Supermicro 1U SYS-6018R-TDW
CPU - Intel Xeon E5-2620v4
Discrete NICs - Intel X520-DA2

1

Adding more than 3 nodes to a management or regional cluster is not supported.

2

Three manager nodes for HA and three worker storage nodes for a minimal Ceph cluster. For more details about Ceph requirements, see Management cluster storage.

3

A management cluster requires 2 volumes for Container Cloud (total 50 GB) and 5 volumes for StackLight (total 60 GB). A managed cluster requires 5 volumes for StackLight.

4

In total, at least 2 disks are required:

sda - minimum 120 GB for system
sdb - minimum 120 GB for LocalVolumeProvisioner

Before Container Cloud 2.20.0, third disk sdc with 1900 GB SSD/HDD storage is required dor Ceph OSD.

Ceph changes in Container Cloud 2.20

Since Container Cloud 2.20.0, the Ceph cluster does not deploy on management and regional clusters to reduce resource consumption.
Ceph cluster is automatically removed from existing management and regional clusters during the Container Cloud update to 2.20.0.
Managed clusters continue using Ceph as a distributed storage system.

For the default storage schema, see Default configuration of the host system storage

5

Only one PXE port per node is allowed. OOB management (IPMI) port is not included.