/dev/block/8:17:
/dev/disk/by-id/scsi-14f504e46494c455242553273306c2d4b72697a2d544e6b4f-part1:
/dev/disk/by-path/ip-192.168.0.187:3260-iscsi-iqn.2006-01.com.openfiler:tsn.dea898a36535-lun-0-part1:
/dev/sdb1:
Magic: eb7a62c2
Label: myqdisk
Created: Thu Jan 1 23:42:00 2015
Host: node02.abc.com
Kernel Sector Size: 512
Recorded Sector Size: 512
(3) 配置表决磁盘qdisk
# 进入管理界面Manage Clusters --> gfs --> Configure --> QDisk
Device : /dev/sdc1
Path to program : ping -c3 -t2 192.168.0.253
Interval : 3
Score : 2
TKO : 10
Minimum Score : 1
# 点击apply
(4) 启动qdisk服务
chkconfig qdiskd on
service qdiskd start
clustat -l
[root@node01 ~]# clustat -l
Cluster Status for gfs @ Thu Jan 1 23:50:53 2015
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
node01.abc.com 1 Online, Local
node02.abc.com 2 Online
/dev/sdb1 0 Online, Quorum Disk
[root@node01 ~]#
8. 测试GFS 1）node02节点上执行# echo c > /proc/sysrq-trigger
2）node01节点上查看日志记录# tail -f /var/log/messages
Jan 2 01:37:47 node01 ricci: startup succeeded
Jan 2 01:37:47 node01 rgmanager[2196]: I am node #1
Jan 2 01:37:47 node01 rgmanager[2196]: Resource Group Manager Starting
Jan 2 01:37:47 node01 rgmanager[2196]: Loading Service Data
Jan 2 01:37:49 node01 rgmanager[2196]: Initializing Services
Jan 2 01:37:49 node01 rgmanager[2196]: Services Initialized
Jan 2 01:37:49 node01 rgmanager[2196]: State change: Local UP
Jan 2 01:37:49 node01 rgmanager[2196]: State change: node02.abc.com UP
Jan 2 01:37:52 node01 polkitd[3125]: started daemon version 0.96 using authority implementation `local' version `0.96'
Jan 2 01:37:52 node01 rtkit-daemon[3131]: Sucessfully made thread 3129 of process 3129 (/usr/bin/pulseaudio) owned by '42' high priority at nice level -11.
Jan 2 01:40:52 node01 qdiskd[1430]: Assuming master role
Jan 2 01:40:53 node01 qdiskd[1430]: Writing eviction notice for node 2
Jan 2 01:40:54 node01 qdiskd[1430]: Node 2 evicted
Jan 2 01:40:55 node01 corosync[1378]: [TOTEM ] A processor failed, forming new configuration.
Jan 2 01:40:57 node01 corosync[1378]: [QUORUM] Members[1]: 1
Jan 2 01:40:57 node01 corosync[1378]: [TOTEM ] A processor joined or left the membership and a new membership was formed.
Jan 2 01:40:57 node01 kernel: dlm: closing connection to node 2
Jan 2 01:40:57 node01 corosync[1378]: [CPG ] chosen downlist: sender r(0) ip(192.168.0.181) ; members(old:2 left:1)
Jan 2 01:40:57 node01 corosync[1378]: [MAIN ] Completed service synchronization, ready to provide service.
Jan 2 01:40:57 node01 kernel: GFS2: fsid=gfs:gfs2.1: jid=0: Trying to acquire journal lock...
Jan 2 01:40:57 node01 fenced[1522]: fencing node node02.abc.com
Jan 2 01:40:57 node01 rgmanager[2196]: State change: node02.abc.com DOWN
Jan 2 01:41:11 node01 fenced[1522]: fence node02.abc.com success
Jan 2 01:41:12 node01 kernel: GFS2: fsid=gfs:gfs2.1: jid=0: Looking at journal...
Jan 2 01:41:12 node01 kernel: GFS2: fsid=gfs:gfs2.1: jid=0: Done
Jan 2 01:41:30 node01 corosync[1378]: [TOTEM ] A processor joined or left the membership and a new membership was formed.
Jan 2 01:41:30 node01 corosync[1378]: [QUORUM] Members[2]: 1 2
Jan 2 01:41:30 node01 corosync[1378]: [QUORUM] Members[2]: 1 2
Jan 2 01:41:30 node01 corosync[1378]: [CPG ] chosen downlist: sender r(0) ip(192.168.0.181) ; members(old:1 left:0)
Jan 2 01:41:30 node01 corosync[1378]: [MAIN ] Completed service synchronization, ready to provide service.
Jan 2 01:41:38 node01 qdiskd[1430]: Node 2 shutdown
Jan 2 01:41:50 node01 kernel: dlm: got connection from 2
Jan 2 01:41:59 node01 rgmanager[2196]: State change: node02.abc.com UP
说明：fence功能正常，期间GFS文件系统正常。
9. 配置文件cat /etc/cluster/cluster.conf