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Editor to share with you how to build Ceph in CentOS7, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Hardware environment preparation

3 CentOS7. The data disk is determined according to the need

Software environment preparation

Close SELINUX

# sed-I's etc/selinux/config# setenforce GN / etc/selinux/config# setenforce 0

Close iptables

# systemctl stop firewalld# systemctl disable firewalld

Each installation configuration source

# yum clean all# rm-rf / etc/yum.repos.d/*.repo# wget-O / etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/repo/Centos-7.repo# wget-O / etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo# sed-I'/ aliyuncs/d' / etc/yum.repos.d/CentOS-Base.repo# sed-I'/ aliyuncs / d' / etc/yum.repos.d/epel.repo

Synchronization time

Installation

# yum-y ntp ntpdate

Open the edit configuration file in node1

# vim / etc/ntp.confdriftfile / var/lib/ntp/driftrestrict default nomodifyrestrict your ip address mask 255.255.255.0 nomodifyserver 127.127.1.0fudge 127.127.1.0 stratum 10includefile / etc/ntp/crypto/pwkeys / etc/ntp/keysdisable monitor

Start

# systemctl start ntpd

Execute in the other two.

# ntpdate node1

Add a scheduled task

# crontab-eBay root ntpdate node1 10 * root ntpdate node1

Modify hostname separately

# hostname node1# echo node1 > / etc/hostname

Modify / etc/hosts separately

# cat / etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4::1 localhost localhost.localdomain localhost6 localhost6.localdomain6192.168.50.1 node1192.168.50.2 node2192.168.50.3 node3

Configure ssh password-free login separately

# ssh-keygen-t rsa-P''# ssh-copy-id node1# ssh-copy-id node2# ssh-copy-id node3Ceph deployment

Add ceph source (need to confirm before installation, re-source after purge)

# vim / etc/yum.repos.d/ceph.repo [ceph] name=cephbaseurl= http://mirrors.163.com/ceph/rpm-jewel/el7/x86_64/gpgcheck=0[ceph-noarch]name=cephnoarchbaseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch/gpgcheck=0

(optional) this step is to ensure that 163 sources are used

CentOS:# export CEPH_DEPLOY_REPO_URL= http://mirrors.163.com/ceph/rpm-jewel/el7# export CEPH_DEPLOY_GPG_URL= http://mirrors.163.com/ceph/keys/release.asc

Node1 install deploy

# yum install ceph-deploy-y

Create a directory

# mkdir ~ / ceph-cluster# cd ceph-cluster/

Create

# ceph-deploy new node1 node2 node3

Install ceph

# ceph-deploy install node1 node2 node3

Initialize mon

# ceph-deploy mon create-initial

Create osd

# ceph-deploy-overwrite-conf osd create mode1:/dev/sdb node2:/dev/sdb node3:/dev/sdb

Create admin

# ceph-deploy-overwrite-conf admin node1 node2 node3

View

# ceph healthHEALTH_OK

! If something goes wrong, everything can start all over again.

# ceph-deploy purge node1 node2 node3# ceph-deploy purgedata node1 node2 node3# ceph-deploy forgetkeysCeph usage

Create mds

# ceph-deploy mds create node1

Create data pool and metadata pool

# ceph osd pool create cephfs_data 128 128# ceph osd pool create cephfs_metadata 128 128

Create cephfs

# cephfs new cephfs cephfs_metadata cephfs_data

View cephfs

# ceph fs ls

Create a mount directory

# cd / mnt & & mkdir cephfs_mnt

Get key

# ceph auth get-key client.admin-o / etc/ceph/adminkey

Mounting

# mount-t ceph node1:/ cephfs_mnt-o name=admin,secretfile=/etc/ceph/adminkey above is all the content of this article "how to build Ceph in CentOS7". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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