RAC 11gR2模拟OCR和Votedisk损坏恢复过程
1）破坏前的ocr和votedisk信息检查检查ocr自动备份[root@rac1~]#ocrconfig-showbackuprac22013/10/1309:45:30/u01/grid/product/11.2.0/cdata/rac-cluster/backu
1）破坏前的ocr和votedisk信息检查
检查ocr自动备份
[root@rac1 ~]# ocrconfig -showbackup
rac2 2013/10/13 09:45:30 /u01/grid/product/11.2.0/cdata/rac-cluster/backup00.ocr
rac2 2013/10/13 05:45:29 /u01/grid/product/11.2.0/cdata/rac-cluster/backup01.ocr
rac2 2013/10/13 01:45:28 /u01/grid/product/11.2.0/cdata/rac-cluster/backup02.ocr
rac2 2013/10/12 01:45:26 /u01/grid/product/11.2.0/cdata/rac-cluster/day.ocr
rac2 2013/09/28 02:55:56 /u01/grid/product/11.2.0/cdata/rac-cluster/week.ocr
PROT-25: Manual backups for the Oracle Cluster Registry are not available
这里有一个PROT-25的提示信息，手工备份时无效，所以破坏后直接用自动备份恢复
检查ocr磁盘信息
[root@rac1 ~]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 2720
Available space (kbytes) : 259400
ID : 2026562699
Device/File Name : +OCRDATA
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
查看votedisk磁盘信息
[root@rac1 ~]# crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 5c190e6ab4c04facbfdd4ca0e836a798 (ORCL:OCR1) [OCRDATA]
2. ONLINE abcc18afe6214fbcbfa02fad1c41b21b (ORCL:OCR2) [OCRDATA]
3. ONLINE 31e0a9df91514f73bf50a4e0a344af3d (ORCL:OCR3) [OCRDATA]
Located 3 voting disk(s).
可以看到OCR磁盘和votedisk都通过ASM OCRDATA磁盘组管理
查看ASM磁盘组 OCRDATA信息，我的OCRDATA磁盘组是有OCR1-3组成所以直接通过下列命令查询
[root@rac1 ~]# /etc/init.d/oracleasm querydisk -d OCR1
Disk "OCR1" is a valid ASM disk on device /dev/sda1[8,1]
[root@rac1 ~]# /etc/init.d/oracleasm querydisk -d OCR2
Disk "OCR2" is a valid ASM disk on device /dev/sdh1[8,113]
[root@rac1 ~]# /etc/init.d/oracleasm querydisk -d OCR3
Disk "OCR3" is a valid ASM disk on device /dev/sdb1[8,17]
由于ASM参数文件保存在OCRDATA下，所以对备份一份spfile
SQL> show parameter spfile;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
spfile string +OCRDATA/rac-cluster/asmparame
terfile/registry.253.825083547
SQL> create pfile='/tmp/asmbak.ora' from spfile; --备份到/tmp/asmbak.ora
File created.
2）模拟损坏
使用dd命令破坏这几个磁盘,
[root@rac1 ~]# dd if=/dev/zero of=/dev/sda1 bs=1M count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB) copied, 0.005454 seconds, 1.9 GB/s
[root@rac1 ~]# dd if=/dev/zero of=/dev/sdh1 bs=1M count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB) copied, 0.00603 seconds, 1.7 GB/s
破坏后执行下面命令，发现各节点服务一切正常
[root@rac1 ~]# crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora.DATA.dg ora....up.type ONLINE ONLINE rac1
ora.FRA.dg ora....up.type ONLINE ONLINE rac1
ora....ER.lsnr ora....er.type ONLINE ONLINE rac1
ora....N1.lsnr ora....er.type ONLINE ONLINE rac1
ora.OCRDATA.dg ora....up.type ONLINE ONLINE rac1
ora.asm ora.asm.type ONLINE ONLINE rac1
ora.eons ora.eons.type ONLINE ONLINE rac1
ora.gsd ora.gsd.type OFFLINE OFFLINE
ora....network ora....rk.type ONLINE ONLINE rac1
ora.oc4j ora.oc4j.type OFFLINE OFFLINE
ora.ons ora.ons.type ONLINE ONLINE rac1
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application OFFLINE OFFLINE
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip ora....t1.type ONLINE ONLINE rac1
ora....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora.rac2.gsd application OFFLINE OFFLINE
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip ora....t1.type ONLINE ONLINE rac2
ora.ractest.db ora....se.type ONLINE ONLINE rac1
ora....ry.acfs ora....fs.type ONLINE ONLINE rac1
ora.scan1.vip ora....ip.type ONLINE ONLINE rac1
[root@rac1 ~]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 2720
Available space (kbytes) : 259400
ID : 2026562699
Device/File Name : +OCRDATA
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
[root@rac1 ~]# crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 5c190e6ab4c04facbfdd4ca0e836a798 (ORCL:OCR1) [OCRDATA]
2. ONLINE abcc18afe6214fbcbfa02fad1c41b21b (ORCL:OCR2) [OCRDATA]
3. ONLINE 31e0a9df91514f73bf50a4e0a344af3d (ORCL:OCR3) [OCRDATA]
Located 3 voting disk(s).
停止RAC1crs服务
[root@rac1 ~]# crsctl stop crs
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.crsd' on 'rac1'
CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'rac1'
CRS-2673: Attempting to stop 'ora.LISTENER_SCAN1.lsnr' on 'rac1'
CRS-2673: Attempting to stop 'ora.OCRDATA.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.ractest.db' on 'rac1'
CRS-2673: Attempting to stop 'ora.registry.acfs' on 'rac1'
CRS-2677: Stop of 'ora.registry.acfs' on 'rac1' succeeded
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.rac1.vip' on 'rac1'
CRS-2677: Stop of 'ora.LISTENER_SCAN1.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.scan1.vip' on 'rac1'
CRS-2677: Stop of 'ora.rac1.vip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.rac1.vip' on 'rac2'
CRS-2677: Stop of 'ora.scan1.vip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.scan1.vip' on 'rac2'
CRS-2676: Start of 'ora.rac1.vip' on 'rac2' succeeded
CRS-2676: Start of 'ora.scan1.vip' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.LISTENER_SCAN1.lsnr' on 'rac2'
CRS-2676: Start of 'ora.LISTENER_SCAN1.lsnr' on 'rac2' succeeded
CRS-2677: Stop of 'ora.OCRDATA.dg' on 'rac1' succeeded
CRS-2677: Stop of 'ora.ractest.db' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.DATA.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.FRA.dg' on 'rac1'
CRS-2677: Stop of 'ora.FRA.dg' on 'rac1' succeeded
CRS-2677: Stop of 'ora.DATA.dg' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.ons' on 'rac1'
CRS-2673: Attempting to stop 'ora.eons' on 'rac1'
CRS-2677: Stop of 'ora.ons' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.net1.network' on 'rac1'
CRS-2677: Stop of 'ora.net1.network' on 'rac1' succeeded
CRS-2677: Stop of 'ora.eons' on 'rac1' succeeded
CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'rac1' has completed
CRS-2677: Stop of 'ora.crsd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssdmonitor' on 'rac1'
CRS-2673: Attempting to stop 'ora.ctssd' on 'rac1'
CRS-2673: Attempting to stop 'ora.evmd' on 'rac1'
CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
CRS-2673: Attempting to stop 'ora.drivers.acfs' on 'rac1'
CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac1'
CRS-2677: Stop of 'ora.cssdmonitor' on 'rac1' succeeded
CRS-2677: Stop of 'ora.evmd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.mdnsd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.ctssd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.drivers.acfs' on 'rac1' succeeded
CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'rac1'
CRS-2677: Stop of 'ora.cssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac1'
CRS-2673: Attempting to stop 'ora.diskmon' on 'rac1'
CRS-2677: Stop of 'ora.gpnpd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.gipcd' on 'rac1'
CRS-2677: Stop of 'ora.gipcd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.diskmon' on 'rac1' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac1' has completed
CRS-4133: Oracle High Availability Services has been stopped.
3） 故障定位
在此启动发现已经无法正常启动了，跟踪alter日志，（由于系统日志没有发现什么重要信息，这里就没贴出来）
[root@rac1 ~]# tail -f /u01/grid/product/11.2.0/log/rac1/alertrac1.log
........
[ohasd(28327)]CRS-2765:Resource 'ora.cssdmonitor' has failed on server 'rac1'.
2013-10-13 11:22:46.094
[cssd(28791)]CRS-1713:CSSD daemon is started in clustered mode
2013-10-13 11:22:46.178
[cssd(28791)]CRS-1637:Unable to locate configured voting file with ID 5c190e6a-b4c04fac-bfdd4ca0-e836a798; details at (:CSSNM00020:) in /u01/grid/product/11.2.0/log/rac1/cssd/ocssd.log
2013-10-13 11:22:46.179
[cssd(28791)]CRS-1637:Unable to locate configured voting file with ID abcc18af-e6214fbc-bfa02fad-1c41b21b; details at (:CSSNM00020:) in /u01/grid/product/11.2.0/log/rac1/cssd/ocssd.log
2013-10-13 11:22:46.179