Deploying a Ceph Cluster

1. Install the tool. Perform this step only for CentOS 7.6. Skip it for openEuler 20.03.

   1	yum -y install createrepo

2. Create a /home/ecturbo_rpm directory and copy the created RPM packages to the directory.

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   mkdir /home/ecturbo_rpm cp /home/rpmbuild/RPMS/aarch64/* /home/ecturbo_rpm cp /home/rpmbuild/RPMS/noarch/* /home/ecturbo_rpm

3. Go to /home/ecturbo_rpm and generate repodata.

   1 2	cd /home/ecturbo_rpm createrepo ./

4. Go to /etc/yum.repos.d and create a my_ceph_local.repo file.

   1 2	cd /etc/yum.repos.d vim my_ceph_local.repo

5. Press i to enter the insert mode and edit the my_ceph_local.repo file. Add the information of Ceph and oath.
   • On CentOS 7.6:

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     [myceph] name=myceph baseurl=file:///home/ecturbo_rpm enabled=1 gpgcheck=0

   • On openEuler 20.03:

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     [myceph] name=myceph baseurl=file:///home/ecturbo_rpm enabled=1 gpgcheck=0 [local-oath] name=local-oath baseurl=file:///home/rpm/oath enabled=1 gpgcheck=0

6. Press Esc to exit the insert mode. Type :wq! and press Enter to save the file and exit.

7. Update the Yum cache.

   1 2	yum clean all yum makecache

For details, see Installing the Ceph Software in the Ceph Block Storage Deployment Guide (CentOS 7.6 & openEuler 20.03).

• In the Deployment Guide, the Ceph mirror is the official Ceph mirror, which is a Ceph RPM package that does not contain the EC Turbo feature. Therefore, you need to install Ceph using the local repository.
• Before installing Ceph, run the yum list | grep ceph command to ensure that Ceph is installed from the local repository. In the command, myceph is the name of the repository where Ceph components are installed.
• When installing Ceph, you may need to install other third-party software. Ensure that the network connection is normal.