基于 iscsi 存储的 kvm 动态迁移（V2V）
gpgcheck=0
三、安装虚拟化软件
yum groups install -y "Virtualization Platform "
yum groups install -y "Virtualization Hypervisor "
yum groups install -y "Virtualization Tools "
yum groups install -y "Virtualization Client "
SSH 互信
ALL: ssh-keygen -t rsa -P ''
ALL: ssh-copy-id -i ~/.ssh/id_rsa.pub root@node1
ALL: ssh-copy-id -i ~/.ssh/id_rsa.pub root@node2
ALL:mkdir /kvm-hosts/
在 vmware 的虚拟机中安装包
ALL: yum group install virtualization-client -y
ALL: yum group install gnome-desktop -y
ALL: yum install -y tigervnc-server tigervnc
ALL: systemctl stop firewalld
ALL: systemctl disable firewalld
群集软件包安装
ALL:yum install bash-completion ntpdate tigervnc-server iscsi-initiator-utils pacemaker corosync pcs psmisc policycoreutils-python fence-agents-all dlm lvm2-cluster gfs2-utils -y
ALL: systemctl start pcsd
ALL: systemctl enable pcsd
ALL:echo "a" | passwd --stdin hacluster
单(): pcs cluster auth node1 node2 -u hacluster -p a
单(): pcs cluster setup --name kvm-ha-cluster node1 node2
单(): pcs cluster start --all
单(): pcs cluster enable --all
查看 iscsi initiator 的 IQN
ALL:yum install iscsi-initiator-utils
ALL:vi /etc/iscsi/initiatorname.iscsi
获得 iqn.1994-05.com.redhat:node(x)
yum 配置
[centos]
name=centos
baseurl=file:///opt/centos
enabled=1
gpgcheck=0
网络配置
10.1.2.156 iscsiStorage
10.1.2.157 node1
10.1.2.158 node2
systemctl stop firewalld
systemctl disable firewalld
分两个区出来：
[root@localhost ~]# fdisk -l
Device Boot Start End Blocks Id System
/dev/sdb1 2048 83888127 41943040 83 Linux
/dev/sdb2 83888128 85985279 1048576 83 Linux
配置 iscsi
yum install -y targetcli
/targetcli 的对应目录下面/
/1、block/
create wang1 dev=/dev/sdb1
create wang2 dev=/dev/sdb2
/2、iscsi/
create iqn.2019-05.wangyu.name:tomstor1
/3、lun/
create /backstores/block/wang1
create /backstores/block/wang2
/4、acl/
create iqn.1994-05.com.redhat:node1
create iqn.1994-05.com.redhat:node2
cd /
/> ls
o- / ............................................................................... [...]
o- backstores .................................................................... [...]
| o- block ........................................................ [Storage Objects: 2]
| | o- caq1 ................................. [/dev/sdb1 (60.0GiB) write-thru activated]
| | | o- alua ......................................................... [ALUA Groups: 1]
| | | o- default_tg_pt_gp ............................. [ALUA state: Active/optimized]
| | o- caq2 ................................. [/dev/sdb2 (20.0GiB) write-thru activated]
| | o- alua ......................................................... [ALUA Groups: 1]
| | o- default_tg_pt_gp ............................. [ALUA state: Active/optimized]
| o- fileio ....................................................... [Storage Objects: 0]
| o- pscsi ........................................................ [Storage Objects: 0]
| o- ramdisk ...................................................... [Storage Objects: 0]
o- iscsi .................................................................. [Targets: 1]
| o- iqn.2020-05.caq.name:tomstor1 ........................................... [TPGs: 1]
| o- tpg1 ..................................................... [no-gen-acls, no-auth]
| o- acls ................................................................ [ACLs: 2]
| | o- iqn.1994-05.com.redhat:rs1 ................................. [Mapped LUNs: 2]
| | | o- mapped_lun0 ........................................ [lun0 block/caq1 (rw)]
| | | o- mapped_lun1 ........................................ [lun1 block/caq2 (rw)]
| | o- iqn.1994-05.com.redhat:rs2 ................................. [Mapped LUNs: 2]
| | o- mapped_lun0 ........................................ [lun0 block/caq1 (rw)]
| | o- mapped_lun1 ........................................ [lun1 block/caq2 (rw)]
| o- luns ................................................................ [LUNs: 2]
| | o- lun0 ............................ [block/caq1 (/dev/sdb1) (default_tg_pt_gp)]
| | o- lun1 ............................ [block/caq2 (/dev/sdb2) (default_tg_pt_gp)]
| o- portals .......................................................... [Portals: 1]
| o- 0.0.0.0:3260 ........................................................... [OK]
o- loopback ............................................................... [Targets: 0]
/>
saveconfig
exit
systemctl start target
systemctl enable target
ALL: iscsiadm --mode discovery --type sendtargets --portal 10.1.2.156
ALL: iscsiadm -m node -L all
ALL: fdisk -l
单(): ll /dev/disk/by-id/ |grep sd
#找最小(sdb)的 wwn 那个，做 stonith 隔离设备（防止脑裂现象）
pcs stonith create scsi-shooter fence_scsi pcmk_host_list="node1 node2" devices="/dev/disk/by-id/wwn-0x6001405a0dbafe526bc4a8484a66475b" meta provides=unfencing
单(): pcs resource create dlm ocf:pacemaker:controld op monitor interval=30s on-fail=fence clone interleave=true ordered=true
ALL:pcs status #可以在双节点看一下是否成功了
ALL:lvmconf --enable-cluster
ALL:reboot
重启后可以 pcs status 看到都启动的状态
向群集中添加资源，clvm，它是群集化的逻辑资源卷管理
单(): pcs resource create clvmd ocf:heartbeat:clvm op monitor interval=30s on-fail=fence clone interleave=true ordered=true
单():pcs constraint
order start dlm-clone then clvmd-clone
单():pcs constraint colocation add clvmd-clone with dlm-clone
fdisk /dev/sdc //分一个区，并指定为 8e 类型
ALL:partprobe ; multipath -r
单():pvcreate /dev/sdc1
单():vgcreate vmvg0 /dev/sdc1
//lvcreate -n lvvm0 -l 100%FREE vmvg0
单():lvcreate -n lvvm0 -L 20G vmvg0
单():mkfs.gfs2 -p lock_dlm -j 2 -t kvm-ha-cluster:kvm /dev/vmvg0/lvvm0
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