RHCS图形界面创建GFS共享下

咱们上面经过图形界面实现了GFS,咱们这里使用字符界面实现html

1.1.       系统基础配置

5台节点均采用相同配置。node

  1. 配置/etc/hosts文件linux

    # vi /etc/hosts网络

    127.0.0.1  localhost localhost.localdomain localhost4 localhost4.localdomain4app

    ::1        localhost localhost.localdomain localhost6 localhost6.localdomain6dom

    192.168.1.130 t-lg-kvm-001tcp

    192.168.1.132 t-lg-kvm-002ide

    192.168.1.134 t-lg-kvm-003oop

    192.168.1.138 t-lg-kvm-005url

    192.168.1.140 t-lg-kvm-006

  2. 网络设置

    关闭NetworkManager

    # service NetworkManager stop

    # chkconfig NetworkManager off

  3. 关闭SELinux

    修改/etc/selinux/config文件中设置SELINUX=disabled

    # cat /etc/selinux/config

     

    # This file hctrls the state of SELinux on the system.

    # SELINUX= can take one of these three values:

    #     enforcing - SELinux securitypolicy is enforced.

    #     permissive - SELinux printswarnings instead of enforcing.

    #     disabled - No SELinux policyis loaded.

    SELINUX=disabled

    # SELINUXTYPE= can take one of these two values:

    #     targeted - Targeted processesare protected,

    #     mls - Multi Level Securityprotection.

    SELINUXTYPE=targeted

    设置当前生效:

    # setenforce 0

  4. 配置时间同步

    5台节点已配置时间同步。

1.2.      配置yum

Gfs2相关软件直接存放在CentOS系统镜像中,按照如下步骤进行操做:

1、在192.168.1.130上挂载iso文件

#mount -o loop /opt/CentOS-6.5-x86_64-bin-DVD1.iso /var/www/html/DVD1

#mount -o loop /opt/CentOS-6.5-x86_64-bin-DVD2.iso /var/www/html/DVD2

2、在192.168.1.130修改/etc/yum.repos.d/CentOS-Media.repo:

#vi /etc/yum.repos.d/CentOS-Media.repo

[c6-media]

name=CentOS-$releasever - Media

baseurl=file:///var/www/html/DVD1

        file:///var/www/html/DVD2

gpgcheck=0

enabled=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

3、在192.168.1.130上启动httpd服务,以提供其余计算节点使用

# service httpd start

4、在其余4台计算节点上配置yum

#vi/etc/yum.repos.d/CentOS-Media.repo

[c6-media]

name=CentOS-$releasever - Media

baseurl=http://192.168.1.130/DVD1

        http://192.168.1.130/DVD2

gpgcheck=0

enabled=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

1.3.      安装gfs2相关软件

1.1.1.  安装gfs2相关软件

5台计算节点上分别执行如下命令安装gfs2软件:

安装cmanrgmanager

# yuminstall -y rgmanager cman

安装clvm

# yuminstall -y lvm2-cluster

安装gfs2

# yuminstall -y gfs*

1.1.2.  配置防火墙策略

5台计算节点上分别执行如下命令配置防火墙策略:

#iptables-A INPUT -p udp -m udp --dport 5404 -j ACCEPT

#iptables-A INPUT -p udp -m udp --dport 5405 -j ACCEPT

#iptables-A INPUT -p tcp -m tcp --dport 21064 -j ACCEPT

#serviceiptables save

以上过程执行完成后,建议从新启动计算节点,不然有可能会出现cman服务启动不成功的问题。

 

1.4.      配置cmanrgmanager 集群

配置集群在一台计算节点上执行便可,配置完成后同步到其余计算节点上,例如在192.168.1.130上进行配置:

1、建立集群

192.168.1.130上执行:

root@t-lg-kvm-001:/#ccs_toolcreate kvmcluster

2、配置集群节点

总共有5台计算节点,因1台网卡问题暂未使用,目前配置过程当中只有5台计算节点,将计算节点添加到集群中,在192.168.1.130上执行:

root@t-lg-kvm-001:/#ccs_tooladdnode -n 1 t-lg-kvm-001

root@t-lg-kvm-001:/#ccs_tooladdnode -n 2 t-lg-kvm-002

root@t-lg-kvm-001:/#ccs_tooladdnode -n 3 t-lg-kvm-003

root@t-lg-kvm-001:/#ccs_tooladdnode -n 4 t-lg-kvm-005

root@t-lg-kvm-001:/#ccs_tooladdnode -n 5 t-lg-kvm-006

查看集群:

root@t-lg-kvm-001:/root#ccs_toollsnode

 

Clustername: kvmcluster, config_version: 24

 

Nodename                        Votes Nodeid Fencetype

t-lg-kvm-001                       1    1   

t-lg-kvm-002                       1    2   

t-lg-kvm-003                       1    3   

t-lg-kvm-005                       1    4   

t-lg-kvm-006                       1    5 

3、同步192.168.1.130上的配置文件到各节点

root@t-lg-kvm-001:/#scp/etc/cluster/cluster.conf 192.168.1.132:/etc/cluster/

root@t-lg-kvm-001:/#scp/etc/cluster/cluster.conf 192.168.1.134:/etc/cluster/

root@t-lg-kvm-001:/#scp/etc/cluster/cluster.conf 192.168.1.138:/etc/cluster/

root@t-lg-kvm-001:/#scp/etc/cluster/cluster.conf 192.168.1.140:/etc/cluster/

4、启动各个节点上的cman服务

5台计算节点上均执行:

#servicecman start

集群配置完成,接下来配置clvm.

1.5.      配置CLVM

  1. 启用集群LVM

    在集群中的每一个节点上均执行如下命令开启集群lvm

    #lvmconf--enable-cluster

    验证集群lvm是否启用:

    #cat/etc/lvm/lvm.conf | grep "locking_type = 3"

    locking_type= 3

    有返回值locking_type = 3证实集群lvm已启动。

  2. 启动clvm服务

    在各节点上启动clvm服务:

    #serviceclvmd start

  3. 在集群节点上建立lvm

    此步骤在一台节点上执行便可,例如在192.168.1.130上执行:

    查看共享存储:

    #fdisk-l

     

    Disk/dev/sda: 599.0 GB, 598999040000 bytes

    255heads, 63 sectors/track, 72824 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x000de0e7

     

       Device Boot      Start         End      Blocks  Id  System

    /dev/sda1   *          1          66      524288  83  Linux

    Partition1 does not end on cylinder boundary.

    /dev/sda2              66       72825  584434688   8e  Linux LVM

     

    Disk/dev/mapper/vg01-lv01: 53.7 GB, 53687091200 bytes

    255heads, 63 sectors/track, 6527 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk/dev/mapper/vg01-lv_swap: 537.7 GB, 537676218368 bytes

    255heads, 63 sectors/track, 65368 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk /dev/sdb: 1073.7 GB, 1073741824000 bytes

    255heads, 63 sectors/track, 130541 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk /dev/sdc: 1073.7 GB, 1073741824000 bytes

    255heads, 63 sectors/track, 130541 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk /dev/sdd: 1073.7 GB, 1073741824000 bytes

    255heads, 63 sectors/track, 130541 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk /dev/sde: 1073.7 GB, 1073741824000 bytes

    255heads, 63 sectors/track, 130541 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk /dev/sdf: 1073.7 GB, 1073741824000 bytes

    255heads, 63 sectors/track, 130541 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk /dev/sdg: 1073.7 GB, 1073741824000 bytes

    255heads, 63 sectors/track, 130541 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

     

     

    Disk/dev/mapper/vg01-lv_bmc: 5368 MB, 5368709120 bytes

    255heads, 63 sectors/track, 652 cylinders

    Units= cylinders of 16065 * 512 = 8225280 bytes

    Sectorsize (logical/physical): 512 bytes / 512 bytes

    I/Osize (minimum/optimal): 512 bytes / 512 bytes

    Diskidentifier: 0x00000000

           6lun,每一个1TB

    建立集群物理卷:

    root@t-lg-kvm-001:/root#pvcreate/dev/sdb

    root@t-lg-kvm-001:/root#pvcreate/dev/sdc

    root@t-lg-kvm-001:/root#pvcreate/dev/sdd

    root@t-lg-kvm-001:/root#pvcreate/dev/sde

    root@t-lg-kvm-001:/root#pvcreate/dev/sdf

    root@t-lg-kvm-001:/root#pvcreate/dev/sdg

           建立集群卷组:

    root@t-lg-kvm-001:/root#vgcreatekvmvg /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg

      Clustered volume group "kvmvg"successfully created

    root@t-lg-kvm-001:/root#vgs

      VG   #PV #LV #SN Attr   VSize   VFree

      kvmvg  6   0   0 wz--nc  5.86t 5.86t

      vg01   1   3   0 wz--n- 557.36g 1.61g

           建立集群逻辑卷:

    root@t-lg-kvm-001:/root#lvcreate -L 5998G -n kvmlv kvmvg

      Logical volume "kvmlv" created

    root@t-lg-kvm-001:/root#lvs

      LV     VG    Attr       LSize  Pool Origin Data%  Move LogCpy%Sync Convert

      kvmlv  kvmvg -wi-a-----   5.86t                                            

      lv01    vg01 -wi-ao----  50.00g                                            

      lv_bmc vg01  -wi-ao----   5.00g                                            

      lv_swap vg01 -wi-ao---- 500.75g                   

    到此集群的逻辑卷建立完成,逻辑卷在一台节点上建立完成后,在其余节点上都能看到。

    可登录到其余节点上,使用lvs都能查看到该逻辑卷,验证是否成功。

1.6.      配置gfs2

1、将逻辑卷格式化成集群文件系统

仅在一台机器上执行便可,例如在192.168.1.130上执行:

root@t-lg-kvm-001:/root#mkfs.gfs2 -j 7 -p lock_dlm -t kvmcluster:sharedstorage/dev/kvmvg/kvmlv

Thiswill destroy any data on /dev/kvmvg/kvmlv.

Itappears to contain: symbolic link to `../dm-3'

 

Areyou sure you want to proceed? [y/n] y

 

Device:                    /dev/kvmvg/kvmlv

Blocksize:                 4096

DeviceSize                5998.00 GB(1572339712 blocks)

FilesystemSize:           5998.00 GB (1572339710blocks)

Journals:                  7

ResourceGroups:           7998

LockingProtocol:          "lock_dlm"

LockTable:               "kvmcluster:sharedstorage"

UUID:                     39f35f4a-e42a-164f-9438-967679e48f9f

2、将集群文件系统挂载到/openstack/instances目录下

   该步骤在集群中的每一个节点上都须要执行挂载命令:

#mount-t gfs2 /dev/kvmvg/kvmlv /openstack/instances/

查看挂载状况:

#df-h

Filesystem               Size  Used Avail Use% Mounted on

/dev/mapper/vg01-lv01     50G  12G   35G  26% /

tmpfs                    379G   29M 379G   1% /dev/shm

/dev/mapper/vg01-lv_bmc  5.0G 138M  4.6G   3% /bmc

/dev/sda1                504M   47M 433M  10% /boot

/dev/mapper/kvmvg-kvmlv 5.9T  906M  5.9T  1% /openstack/instances

设置开机自动挂载:

#echo"/dev/kvmvg/kvmlv /openstack/instances gfs2 defaults 0 0" >>/etc/fstab

启动rgmanager服务:

#servicergmanager start

设置开机自启动:

#chkconfigclvmd on

#chkconfigcman on

#chkconfigrgmanager on

#chkconfiggfs2 on

3、设置挂载目录权限

因挂载目录用于openstack存放虚拟机,目录的权限须要设置成nova:nova.

在集群中的任意节点上执行:

#chown -R nova:nova /openstack/instances/

在各节点上查看目录权限是否正确:

#ls-lh /openstack/

总用量 4.0K

drwxr-xr-x7 nova nova 3.8K 5  26 14:12 instances

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