数据库oracle RAC，磁阵路径改变，造成启动错误CRS-4535 CRS-4000
我是数据库架构+优化，不做运维哈
目前这套RAC是我在3月实施，一直运行正常，突然间5月down机一台，心想down机是件简单的事情（银行，证券除外）
在我重启数据库后，还是无法正常启动，查看日志也没有什么信息。
问题描述：
目前此省为双机rac，150,152 两台数据库，152正常，150 down机
异常原因：
152,150两台服务器，磁阵的映射路径不一致导致数据库启动错误（150为多路径，152为普通路径）
解决方案：
150这台机器，是不是项目有其他安排？怎么改变了磁阵映射路径？ 对应的接口人联系谁？
目前此省为双机rac，150,152 两台数据库，152正常，150 down机
异常原因：
152,150两台服务器，磁阵的映射路径不一致导致数据库启动错误（150为多路径，152为普通路径）
解决方案：
150这台机器，是不是项目有其他安排？怎么改变了磁阵映射路径？ 对应的接口人联系谁？
[root@DP2 ~]# multipath -ll [root@DP2 ~]# raw -qa /dev/raw/raw1: bound to major 8, minor 16 /dev/raw/raw2: bound to major 8, minor 48 /dev/raw/raw3: bound to major 8, minor 112 /dev/raw/raw4: bound to major 8, minor 144 [root@DP2 ~]#
[root@DP1 ~]# multipath -ll multipath.conf line 12, invalid keyword: devnode multipath.conf line 13, invalid keyword: wwid multipath.conf line 14, invalid keyword: } mpath2 (3690b11c00017bfed00000602511138b0) dm-1 DELL,MD32xx [size=1.8T][features=2 pg_init_retries 50][hwhandler=1 rdac][rw] \_ round-robin 0 [prio=100][active] \_ 7:0:1:1 sdh 8:112 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 7:0:0:1 sdc 8:32 [active][ghost] mpath1 (3690b11c00017c13400000644511069ed) dm-0 DELL,MD32xx [size=1.8T][features=2 pg_init_retries 50][hwhandler=1 rdac][rw] \_ round-robin 0 [prio=100][active] \_ 7:0:0:0 sdb 8:16 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 7:0:1:0 sdg 8:96 [active][ghost] mpath5 (3690b11c00017c134000005e151104912) dm-4 DELL,Universal Xport [size=20M][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=1][enabled] \_ 7:0:0:31 sdf 8:80 [failed][ready] \_ round-robin 0 [prio=1][enabled] \_ 7:0:1:31 sdk 8:160 [failed][ready] mpath4 (3690b11c00017bfed00000604511138c3) dm-3 DELL,MD32xx [size=1.8T][features=2 pg_init_retries 50][hwhandler=1 rdac][rw] \_ round-robin 0 [prio=100][active] \_ 7:0:1:3 sdj 8:144 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 7:0:0:3 sde 8:64 [active][ghost] mpath3 (3690b11c00017c1340000064751106a0a) dm-2 DELL,MD32xx [size=1.8T][features=2 pg_init_retries 50][hwhandler=1 rdac][rw] \_ round-robin 0 [prio=100][active] \_ 7:0:0:2 sdd 8:48 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 7:0:1:2 sdi 8:128 [active][ghost]
第2节点状态情况
[root@DP2 ~]# crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DG01DATA.dg
ONLINE ONLINE dp2
ora.LISTENER.lsnr
ONLINE ONLINE dp2
ora.asm
ONLINE ONLINE dp2 Started
ora.gsd
OFFLINE OFFLINE dp2
ora.net1.network
ONLINE ONLINE dp2
ora.ons
ONLINE ONLINE dp2
ora.registry.acfs
ONLINE ONLINE dp2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE dp2
ora.cvu
1 OFFLINE OFFLINE
ora.dp1.vip
1 OFFLINE OFFLINE
ora.dp2.vip
1 ONLINE ONLINE dp2
ora.oc4j
1 OFFLINE OFFLINE
ora.roam.dataclient.svc
1 ONLINE ONLINE dp2
ora.roam.dataldr.svc
1 ONLINE ONLINE dp2
ora.roam.db
1 OFFLINE OFFLINE
2 ONLINE ONLINE dp2 Open
ora.scan1.vip
1 ONLINE ONLINE dp2
[root@DP2 ~]# crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
第1节点状态：
[root@DP1 ~]# crsctl stat res -t CRS-4535: Cannot communicate with Cluster Ready Services CRS-4000: Command Status failed, or completed with errors. [root@DP1 ~]# crsctl check crs CRS-4638: Oracle High Availability Services is online CRS-4535: Cannot communicate with Cluster Ready Services CRS-4530: Communications failure contacting Cluster Synchronization Services daemon CRS-4534: Cannot communicate with Event Manager [root@DP1 ~]#
下午等IT部调整磁阵路径后，贴出结果
/etc/init.d/ohasd stop
root@localhost source /home/oracle/.bash_profile
为了磁阵损坏，带来不便，数据我已经备份好了。
[root@DP1 raw]# ls -l total 0 crw-rw---- 1 grid oinstall 162, 1 May 9 15:20 raw1 crw-rw---- 1 grid oinstall 162, 2 May 9 15:20 raw2 crw-rw---- 1 grid oinstall 162, 3 May 9 15:20 raw3 crw-rw---- 1 grid oinstall 162, 4 May 9 15:20 raw4 [root@DP1 raw]# [root@DP1 raw]# crsctl check crs CRS-4639: Could not contact Oracle High Availability Services [root@DP1 raw]# /etc/init.d/ohasd start Starting ohasd: CRS-4123: Oracle High Availability Services has been started. [root@DP1 raw]#
由普通路径，我已经换成了多路径方式
，请等待
在经过5分钟的等待，已经完成了，第一个节点已经好了，哎我们的等待是值得的
CRS-4123: Oracle High Availability Services has been started. [root@DP1 raw]# crsctl check crs CRS-4638: Oracle High Availability Services is online CRS-4537: Cluster Ready Services is online CRS-4529: Cluster Synchronization Services is online CRS-4533: Event Manager is online
下面继续，我们把第2个节点按传统的路径，加载试试
如果能启动起来，那我得修改blog了 ，哈哈。。。。。。
请等待...
CRS-4123: Oracle High Availability Services has been started.
启动成功，事实证明单路径和多路径可以共用
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE dp1
ora.cvu
1 ONLINE ONLINE dp1
ora.dp1.vip
1 ONLINE ONLINE dp1
ora.dp2.vip
1 ONLINE ONLINE dp2
ora.oc4j
1 OFFLINE OFFLINE
ora.xxx.dataclient.svc
1 ONLINE ONLINE dp1
ora.xxx.dataldr.svc
1 ONLINE ONLINE dp1
ora.xxx.db
1 ONLINE ONLINE dp1 Open
2 ONLINE ONLINE dp2 Open
ora.scan1.vip