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搭建Ceph分布式存储

环境：

系统	IP地址	主机名（登录用户）	承载角色
Centos 7.4 64Bit 1611	10.199.100.170	dlp（yzyu） ceph-client（root）	admin-node ceph-client
Centos 7.4 64Bit 1611	10.199.100.171	node1（yzyu）添加一块硬盘	mon-node osd0-node mds-node
Centos 7.4 64Bit 1611	10.199.100.172	node2（yzyu）添加一块硬盘	mon-node osd1-node

配置基础环境

[root@dlp ~]# useradd yzyu
[root@dlp ~]# echo "dhhy" |passwd --stdin dhhy
[root@dlp ~]# cat <<END >>/etc/hosts
10.199.100.170 dlp
10.199.100.171 node1
10.199.100.172 node2
END
[root@dlp ~]# echo "yzyu ALL = (root) NOPASSWD:ALL" >> /etc/sudoers.d/yzyu
[root@dlp ~]# chmod 0440 /etc/sudoers.d/yzyu

[root@node1~]# useradd yzyu
[root@node1 ~]# echo "yzyu" |passwd --stdin yzyu
[root@node1 ~]# cat <<END >>/etc/hosts
10.199.100.170 dlp
10.199.100.171 node1
10.199.100.172 node2
END
[root@node1 ~]# echo "yzyu ALL = (root) NOPASSWD:ALL" >> /etc/sudoers.d/yzyu
[root@node1 ~]# chmod 0440 /etc/sudoers.d/yzyu


[root@node2 ~]# useradd yzyu
[root@node2 ~]# echo "yzyu" |passwd --stdin yzyu
[root@node2 ~]# cat <<END >>/etc/hosts
10.199.100.170 dlp
10.199.100.171 node1
10.199.100.172 node2
END
[root@node2 ~]# echo "yzyu ALL = (root) NOPASSWD:ALL" >> /etc/sudoers.d/yzyu
[root@node2 ~]# chmod 0440 /etc/sudoers.d/yzyu

配置ntp时间服务

[root@dlp ~]# yum -y install ntp ntpdate
[root@dlp ~]# sed -i '/^server/s/^/#/g' /etc/ntp.conf
[root@dlp ~]# sed -i '25aserver 127.127.1.0
fudge 127.127.1.0 stratum 8' /etc/ntp.conf
[root@dlp ~]# systemctl start ntpd
[root@dlp ~]# systemctl enable ntpd
[root@dlp ~]# netstat -lntup

[root@node1 ~]# yum -y install ntpdate
[root@node1 ~]# /usr/sbin/ntpdate 10.199.100.170
[root@node1 ~]# echo "/usr/sbin/ntpdate 10.199.100.170" >>/etc/rc.local
[root@node1 ~]# chmod +x /etc/rc.local


[root@node2 ~]# yum -y install ntpdate
[root@node2 ~]# /usr/sbin/ntpdate 10.199.100.170
[root@node2 ~]# echo "/usr/sbin/ntpdate 10.199.100.170" >>/etc/rc.local
[root@node2 ~]# chmod +x /etc/rc.local

分别在dlp节点、node1、node2节点上安装Ceph

[root@dlp ~]# yum -y install yum-utils
[root@dlp ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
[root@dlp ~]# yum -y install epel-release --nogpgcheck
[root@dlp ~]# cat <<END >>/etc/yum.repos.d/ceph.repo
[Ceph]
name=Ceph packages for $basearch
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/$basearch
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1

[Ceph-noarch]
name=Ceph noarch packages
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1

[ceph-source]
name=Ceph source packages
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/SRPMS
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1
END

[root@dlp ~]# ls /etc/yum.repos.d/　　##必须保证有默认的官网源，结合epel源和网易的ceph源，才可以进行安装；

bak CentOS-fasttrack.repo ceph.repo

CentOS-Base.repo CentOS-Media.repo dl.fedoraproject.org_pub_epel_7_x86_64_.repo

CentOS-CR.repo CentOS-Sources.repo epel.repo

CentOS-Debuginfo.repo CentOS-Vault.repo epel-testing.repo

[root@dlp ~]# su - yzyu
[dhhy@dlp ~]$ mkdir ceph-cluster    ##创建ceph主目录
[dhhy@dlp ~]$ cd ceph-cluster
[dhhy@dlp ceph-cluster]$ sudo yum -y install ceph-deploy    ##安装ceph管理工具
[dhhy@dlp ceph-cluster]$ sudo yum -y install ceph --nogpgcheck    ##安装ceph主程序

[root@node1 ~]# yum -y install yum-utils
[root@ node1 ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
[root@node1 ~]# yum -y install epel-release --nogpgcheck
[root@node1 ~]# cat <<END >>/etc/yum.repos.d/ceph.repo
[Ceph]
name=Ceph packages for $basearch
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/$basearch
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1

[Ceph-noarch]
name=Ceph noarch packages
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1

[ceph-source]
name=Ceph source packages
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/SRPMS
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1
END

[root@node1 ~]# su - yzyu
[dhhy@node1 ~]$ mkdir ceph-cluster
[dhhy@node1~]$ cd ceph-cluster
[dhhy@node1 ceph-cluster]$ sudo yum -y install ceph-deploy
[dhhy@node1 ceph-cluster]$ sudo yum -y install ceph --nogpgcheck
[dhhy@node1 ceph-cluster]$ sudo yum -y install deltarpm


[root@node2 ~]# yum -y install yum-utils
[root@ node1 ~]# yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/7/x86_64/
[root@node2 ~]# yum -y install epel-release --nogpgcheck
[root@node2 ~]# cat <<END >>/etc/yum.repos.d/ceph.repo
[Ceph]
name=Ceph packages for $basearch
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/$basearch
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1

[Ceph-noarch]
name=Ceph noarch packages
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/noarch
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1

[ceph-source]
name=Ceph source packages
baseurl=http://mirrors.163.com/ceph/rpm-jewel/el7/SRPMS
enabled=1
gpgcheck=0
type=rpm-md
gpgkey=https://mirrors.163.com/ceph/keys/release.asc
priority=1
END

[root@node2 ~]# su - yzyu
[dhhy@node2 ~]$ mkdir ceph-cluster
[dhhy@node2 ~]$ cd ceph-cluster
[dhhy@node2 ceph-cluster]$ sudo yum -y install ceph-deploy
[dhhy@node2 ceph-cluster]$ sudo yum -y install ceph --nogpgcheck
[dhhy@node2 ceph-cluster]$ sudo yum -y install deltarpm

在dlp节点管理node存储节点，安装注册服务，节点信息

[yzyu@dlp ceph-cluster]$ pwd 　　##当前目录必须为ceph的安装目录位置
/home/yzyu/ceph-cluster
[yzyu@dlp ceph-cluster]$ ssh-keygen -t rsa 　　##主节点需要远程管理mon节点，需要创建密钥对，并且将公钥复制到mon节点
[yzyu@dlp ceph-cluster]$ ssh-copy-id dhhy@dlp
[yzyu@dlp ceph-cluster]$ ssh-copy-id dhhy@node1
[yzyu@dlp ceph-cluster]$ ssh-copy-id dhhy@node2
[yzyu@dlp ceph-cluster]$ ssh-copy-id root@ceph-client
[yzyu@dlp ceph-cluster]$ cat <<END >>/home/dhhy/.ssh/config
Host dlp
   Hostname dlp
   User yzyu
Host node1
   Hostname node1
   User yzyu
Host node2
   Hostname node2
   User yzyu
END
[yzyu@dlp ceph-cluster]$ chmod 644 /home/yzyu/.ssh/config
[yzyu@dlp ceph-cluster]$ ceph-deploy new node1 node2 　　##初始化节点

[yzyu@dlp ceph-cluster]$ cat <<END >>/home/yzyu/ceph-cluster/ceph.conf
osd pool default size = 2
END
[yzyu@dlp ceph-cluster]$ ceph-deploy install node1 node2 ##安装ceph

配置Ceph的mon监控进程

[yzyu@dlp ceph-cluster]$ ceph-deploy mon create-initial 　　##初始化mon节点

注解：node节点的配置文件在/etc/ceph/目录下，会自动同步dlp管理节点的配置文件；

配置Ceph的osd存储

配置node1节点的osd1存储设备：

[yzyu@node1 ~]$ sudo fdisk /dev/sdc...sdc    ##格式化硬盘，转换为GPT分区
[yzyu@node1 ~]$ pvcreate /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1    ##创建pv
[yzyu@node1 ~]$ vgcreate vg1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1    ##创建vg
[yzyu@node1 ~]$ lvcreate -L 130T -n lv1 vg1    ##划分空间
[yzyu@node1 ~]$ mkfs.xfs /dev/vg1/lv1    ##格式化

[yzyu@node1 ~]$ sudo partx -a /dev/vg1/lv1
[yzyu@node1 ~]$ sudo mkfs -t xfs /dev/vg1/lv1
[yzyu@node1 ~]$ sudo mkdir /var/local/osd1
[yzyu@node1 ~]$ sudo vi /etc/fstab
/dev/vg1/lv1 /var/local/osd1 xfs defaults 0 0
:wq
[yzyu@node1 ~]$ sudo mount -a
[yzyu@node1 ~]$ sudo chmod 777 /var/local/osd1
[yzyu@node1 ~]$ sudo chown ceph:ceph /var/local/osd1/
[yzyu@node1 ~]$ ls -ld /var/local/osd1/
[yzyu@node1 ~]$ df -hT
[yzyu@node1 ~]$ exit

配置node2节点的osd1存储设备：

[yzyu@node2 ~]$ sudo fdisk /dev/sdc...sdc
[yzyu@node2 ~]$ pvcreate /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1
[yzyu@node2 ~]$ vgcreate vg2 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 /dev/sdp1 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 /dev/sdv1 /dev/sdw1 /dev/sdx1 /dev/sdy1 /dev/sdz1
[yzyu@node2 ~]$ lvcreate -L 130T -n lv2 vg2
[yzyu@node2 ~]$ mkfs.xfs /dev/vg2/lv2

[yzyu@node2 ~]$ sudo partx -a /dev/vg2/lv2
[yzyu@node2 ~]$ sudo mkfs -t xfs /dev/vg2/lv2
[yzyu@node2 ~]$ sudo mkdir /var/local/osd2
[yzyu@node2 ~]$ sudo vi /etc/fstab
/dev/vg2/lv2 /var/local/osd2 xfs defaults 0 0
:wq
[yzyu@node2 ~]$ sudo mount -a
[yzyu@node2 ~]$ sudo chmod 777 /var/local/osd2
[yzyu@node2 ~]$ sudo chown ceph:ceph /var/local/osd2/
[yzyu@node2 ~]$ ls -ld /var/local/osd2/
[yzyu@node2 ~]$ df -hT
[yzyu@node2 ~]$ exit

dlp管理节点注册node节点：

[yzyu@dlp ceph-cluster]$ ceph-deploy osd prepare node1:/var/local/osd1 node2:/var/local/osd2 　　##初始创建osd节点并指定节点存储文件位置

[yzyu@dlp ceph-cluster]$ chmod +r /home/yzyu/ceph-cluster/ceph.client.admin.keyring
[yzyu@dlp ceph-cluster]$ ceph-deploy osd activate node1:/var/local/osd1 node2:/var/local/osd2 　　##激活ods节点

[yzyu@dlp ceph-cluster]$ ceph-deploy admin node1 node2 　　##复制key管理密钥文件到node节点中

[yzyu@dlp ceph-cluster]$ sudo cp /home/dhhy/ceph-cluster/ceph.client.admin.keyring /etc/ceph/
[yzyu@dlp ceph-cluster]$ sudo cp /home/dhhy/ceph-cluster/ceph.conf /etc/ceph/
[yzyu@dlp ceph-cluster]$ ls /etc/ceph/
ceph.client.admin.keyring  ceph.conf  rbdmap
[yzyu@dlp ceph-cluster]$ ceph quorum_status --format json-pretty 　　##查看Ceph群集详细信息

验证查看ceph集群状态信息

[yzyu@dlp ceph-cluster]$ ceph health

HEALTH_OK

[yzyu@dlp ceph-cluster]$ ceph -s 　　##查看Ceph群集状态

cluster 24fb6518-8539-4058-9c8e-d64e43b8f2e2

health HEALTH_OK

monmap e1: 2 mons at {node1=10.199.100.171:6789/0,node2=10.199.100.172:6789/0}

election epoch 6, quorum 0,1 node1,node2

osdmap e10: 2 osds: 2 up, 2 in

flags sortbitwise,require_jewel_osds

pgmap v20: 64 pgs, 1 pools, 0 bytes data, 0 objects

10305 MB used, 30632 MB / 40938 MB avail 　　##已使用、剩余、总容量

64 active+clean

[dhhy@dlp ceph-cluster]$ ceph osd tree

ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY

-1 0.03897 root default

-2 0.01949 host node1

0 0.01949 osd.0 up 1.00000 1.00000

-3 0.01949 host node2

1 0.01949 osd.1 up 1.00000 1.00000

[yzyu@dlp ceph-cluster]$ ssh yzyu@node1 　　##验证node1节点的端口监听状态以及其配置文件以及磁盘使用情况

[yzyu@node1 ~]$ df -hT |grep lv1

/dev/vg1/lv1 xfs 20G 5.1G 15G 26% /var/local/osd1

[yzyu@node1 ~]$ du -sh /var/local/osd1/

5.1G /var/local/osd1/

[yzyu@node1 ~]$ ls /var/local/osd1/

activate.monmap active ceph_fsid current fsid journal keyring magic ready store_version superblock systemd type whoami

[yzyu@node1 ~]$ ls /etc/ceph/

ceph.client.admin.keyring ceph.conf rbdmap tmppVBe_2

[yzyu@node1 ~]$ cat /etc/ceph/ceph.conf

[global]

fsid = 0fcdfa46-c8b7-43fc-8105-1733bce3bfeb

mon_initial_members = node1, node2

mon_host = 10.199.100.171,10.199.100.172

auth_cluster_required = cephx

auth_service_required = cephx

auth_client_required = cephx

osd pool default size = 2

[yzyu@dlp ceph-cluster]$ ssh yzyu@node2 　　##验证node2节点的端口监听状态以及其配置文件及其磁盘使用情况

[yzyu@node2 ~]$ df -hT |grep lv2

/dev/vg2/lv2 xfs 20G 5.1G 15G 26% /var/local/osd2

[yzyu@node2 ~]$ du -sh /var/local/osd2/

5.1G /var/local/osd2/

[yzyu@node2 ~]$ ls /var/local/osd2/

activate.monmap active ceph_fsid current fsid journal keyring magic ready store_version superblock systemd type whoami

[yzyu@node2 ~]$ ls /etc/ceph/

ceph.client.admin.keyring ceph.conf rbdmap tmpmB_BTa

[yzyu@node2 ~]$ cat /etc/ceph/ceph.conf

[global]

fsid = 0fcdfa46-c8b7-43fc-8105-1733bce3bfeb

mon_initial_members = node1, node2

mon_host = 10.199.100.171,10.199.100.172

auth_cluster_required = cephx

auth_service_required = cephx

auth_client_required = cephx

osd pool default size = 2

配置Ceph的mds元数据进程

[yzyu@dlp ceph-cluster]$ ceph-deploy mds create node1
[yzyu@dlp ceph-cluster]$ ssh dhhy@node1
[yzyu@node1 ~]$ netstat -utpln |grep 68
(No info could be read for "-p": geteuid()=1000 but you should be root.)
tcp        0      0 0.0.0.0:6800            0.0.0.0:*               LISTEN      -                   
tcp        0      0 0.0.0.0:6801            0.0.0.0:*               LISTEN      -                   
tcp        0      0 0.0.0.0:6802            0.0.0.0:*               LISTEN      -                   
tcp        0      0 0.0.0.0:6803            0.0.0.0:*               LISTEN      -                   
tcp        0      0 0.0.0.0:6804            0.0.0.0:*               LISTEN      -                   
tcp        0      0 192.168.100.102:6789    0.0.0.0:*               LISTEN      -
[yzyu@node1 ~]$ exit

配置Ceph的client客户端

[yzyu@dlp ceph-cluster]$ ceph-deploy install ceph-client 　　##提示输入密码

[dhhy@dlp ceph-cluster]$ ceph-deploy admin ceph-client

[yzyu@dlp ceph-cluster]$ su -
[root@dlp ~]# chmod +r /etc/ceph/ceph.client.admin.keyring

[yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_data 128 　　##数据存储池
pool 'cephfs_data' created
[yzyu@dlp ceph-cluster]$ ceph osd pool create cephfs_metadata 128 　　##元数据存储池
pool 'cephfs_metadata' created
[yzyu@dlp ceph-cluster]$ ceph fs new cephfs cephfs_data cephfs_metadata 　　##创建文件系统
new fs with metadata pool 1 and data pool 2
 
[yzyu@dlp ceph-cluster]$ ceph fs ls 　　##查看文件系统
name: cephfs, metadata pool: cephfs_data, data pools: [cephfs_metadata ]
[yzyu@dlp ceph-cluster]$ ceph -s
    cluster 24fb6518-8539-4058-9c8e-d64e43b8f2e2
     health HEALTH_WARN
            clock skew detected on mon.node2
            too many PGs per OSD (320 > max 300)
            Monitor clock skew detected
     monmap e1: 2 mons at {node1=10.199.100.171:6789/0,node2=10.199.100.172:6789/0}
            election epoch 6, quorum 0,1 node1,node2
      fsmap e5: 1/1/1 up {0=node1=up:active}
     osdmap e17: 2 osds: 2 up, 2 in
            flags sortbitwise,require_jewel_osds
      pgmap v54: 320 pgs, 3 pools, 4678 bytes data, 24 objects
            10309 MB used, 30628 MB / 40938 MB avail
                 320 active+clean

测试Ceph的客户端存储

[root@ceph-client ~]# mkdir /mnt/ceph

[root@ceph-client ~]# grep key /etc/ceph/ceph.client.admin.keyring |awk '{print $3}' >>/etc/ceph/admin.secret

[root@ceph-client ~]# cat /etc/ceph/admin.secret

AQCd/x9bsMqKFBAAZRNXpU5QstsPlfe1/FvPtQ==

[root@ceph-client ~]# mount -t ceph 10.199.100.171:6789:/ /mnt/ceph/ -o name=admin,secretfile=/etc/ceph/admin.secret

[root@ceph-client ~]# df -hT |grep ceph

10.199.100.171:6789:/ ceph 40G 11G 30G 26% /mnt/ceph

[root@ceph-client ~]# dd if=/dev/zero of=/mnt/ceph/1.file bs=1G count=1

记录了1+0 的读入

记录了1+0 的写出

1073741824字节(1.1 GB)已复制，14.2938 秒，75.1 MB/秒

[root@ceph-client ~]# ls /mnt/ceph/

1.file
[root@ceph-client ~]# df -hT |grep ceph

10.199.100.171:6789:/ ceph 40G 13G 28G 33% /mnt/ceph

错误整理

1. 如若在配置过程中出现问题，重新创建集群或重新安装ceph，那么需要将ceph集群中的数据都清除掉，命令如下；

[dhhy@dlp ceph-cluster]$ ceph-deploy purge node1 node2

[dhhy@dlp ceph-cluster]$ ceph-deploy purgedata node1 node2

[dhhy@dlp ceph-cluster]$ ceph-deploy forgetkeys && rm ceph.*

2.dlp节点为node节点和客户端安装ceph时，会出现yum安装超时，大多由于网络问题导致，可以多执行几次安装命令；

3.dlp节点指定ceph-deploy命令管理node节点配置时，当前所在目录一定是/home/dhhy/ceph-cluster/，不然会提示找不到ceph.conf的配置文件；

4.osd节点的/var/local/osd*/存储数据实体的目录权限必须为777，并且属主和属组必须为ceph；

5. 在dlp管理节点安装ceph时出现以下问题

解决方法：

1.重新yum安装node1或者node2的epel-release软件包；

2.如若还无法解决，将软件包下载，使用以下命令进行本地安装；

6.如若在dlp管理节点中对/home/yzyu/ceph-cluster/ceph.conf主配置文件发生变化，那么需要将其主配置文件同步给node节点，命令如下：

node节点收到配置文件后，需要重新启动进程：

7.在dlp管理节点查看ceph集群状态时，出现如下，原因是因为时间不一致所导致；

将dlp节点的ntpd时间服务重新启动，node节点再次同步时间即可，如下所示：

8.在dlp管理节点进行管理node节点时，所处的位置一定是/home/yzyu/ceph-cluster/，不然会提示找不到ceph.conf主配置文件；

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原文地址：https://www.cnblogs.com/omgasw/p/11255224.html

搭建Ceph分布式存储

配置基础环境

配置ntp时间服务

分别在dlp节点、node1、node2节点上安装Ceph

在dlp节点管理node存储节点，安装注册服务，节点信息

配置Ceph的mon监控进程

配置Ceph的osd存储

验证查看ceph集群状态信息

配置Ceph的mds元数据进程

配置Ceph的client客户端

测试Ceph的客户端存储

错误整理