Environment Requirements

Hardware Requirements

A Ceph cluster can use the hybrid deployment mode of Kunpeng servers and x86 servers or the non-hybrid deployment mode of all Kunpeng servers. In a hybrid deployment, among the three Ceph nodes, two are Kunpeng servers and one is x86 server. Both OpenStack nodes are Kunpeng servers. Each server is equipped with four SAS HDDs, one of which is used as the OS drive, and the other three are used as storage drives. Table 1 describes the hardware environment.

**Table 1** Hardware environment in a hybrid deployment
Device Type	Model	Configuration
Ceph node 1	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
Ceph node 2	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
Ceph node 3	x86 server	28-core 2.1 GHz processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
OpenStack management node	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
OpenStack compute node	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4

In a non-hybrid deployment, all the three Ceph nodes are Kunpeng servers, and both OpenStack nodes are Kunpeng servers. Each server is equipped with four SAS HDDs, one of which is used as the OS drive, and the other three are used as storage drives. Table 2 describes the hardware environment.

**Table 2** Hardware environment in a non-hybrid deployment
Device Type	Model	Configuration
Ceph node 1	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
Ceph node 2	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
Ceph node 3	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
OpenStack management node	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4
OpenStack compute node	Kunpeng server	Kunpeng 920 5250 processor x 2, 32 GB DIMM x 4, 1.2 TB SAS HDD x 4

This document uses the hybrid deployment of Kunpeng and x86 servers as an example to describe how to deploy a Ceph cluster. When Ceph uses the non-hybrid deployment mode, the operations are the same as those in hybrid deployment mode.

Software Environment

Prerequisites:

Components such as Keystone, Placement, Neutron, Nova, Glance, Cinder, and Swift have been installed in the OpenStack environment. For details, see OpenStack Rocky & Stein Deployment Guide (CentOS 7.6) and OpenStack Queens Deployment Guide (openEuler 20.03).
The Ceph cluster has been set up, and the MON and OSD processes have been started.

Table 3 describes the software configuration.

**Table 3** Software configuration
Software	Version	How to Obtain	Installation Guide
OS	CentOS 7.6	Download and install them.	https://www.centos.org/download/
OS	openEuler 20.03	Download and install them.	https://www.openeuler.org/en/download/
OpenStack	Stein	Install the software from a Yum source.	https://docs.openstack.org/stein/install/index.html
	Rocky		https://docs.openstack.org/rocky/install/index.html
	Queens		https://docs.openstack.org/queens/install/index.html
Ceph	14.2.1	Install the software from a Yum source.	https://docs.ceph.com/en/latest/install/ Ceph Block Storage Deployment Guide (CentOS 7.6 & openEuler 20.03) Ceph Object Storage Deployment Guide (CentOS 7.6 & openEuler 20.03)

Cluster Environment

In this document, five servers are used to deploy the OpenStack+Ceph cluster. Three servers are used as the Ceph cluster, and two servers are used as the OpenStack environment and Ceph client nodes. For details, see Figure 1 and Table 4.

Figure 1 Cluster networking

**Table 4** Cluster environment IP address planning
Node	IP Address	Server Type	Description
ceph1	192.168.21.1	Kunpeng server	Ceph cluster Manager (MGR) node, storage node, and Monitor (MON) node.
ceph2	192.168.21.3	Kunpeng server	Ceph cluster storage node and MON node.
ceph3	192.168.21.68	x86 server	Ceph cluster storage node and MON node.
controller	192.168.21.11	Kunpeng server	OpenStack control node, Swift object storage node, and Ceph client node.
compute	192.168.21.12	Kunpeng server	OpenStack compute node, Cinder block storage node, and Ceph client node.

Parent topic: OpenStack and Ceph Integrated Deployment Guide (CentOS 7.6 and openEuler 20.03)