Ceph: Designing and Implementing Scalable Storage Systems

How to do it...

Use the following steps to configure the VSM environment:

1. Create the user, cephuser, on all the nodes that will be used for VSM deployment. For simplicity, we will set the password of this user as cephuser. You can always use a username of your choice. Also, provide sudo rights to this user:

        # useradd cephuser        # echo 'cephuser:cephuser' | chpasswd        # echo "cephuser ALL=(ALL) NOPASSWD: ALL" >>         /etc/sudoers

2. Ensure that the NTP is configured:

        # systemctl stop ntpd        # systemctl stop ntpdate        # ntpdate 0.centos.pool.ntp.org > /dev/null 2> /dev/null        # systemctl start ntpdate        # systemctl start ntpd

3. Install tree (optional), git, and the epel packages:

        # yum install -y tree git epel-release

4. Add host information to the /etc/hosts ...