现状
root@testdb1[+ASM1]/root$ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 3260
Available space (kbytes) : 258860
ID : 545177980
Device/File Name : +OCR_VOTE
Device/File integrity check succeeded
Device/File not configured
Device/File not configured
Device/File not configured
Device/File not configured
Cluster registry integrity check succeeded
Logical corruption check succeeded
root@testdb1[+ASM1]/root$crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 531089329c6e4fd7bf55527321648aeb (/dev/asm-diskm) [OCR_VOTE]
2. ONLINE 228bc2cc1a624f2bbff2ed7ed24d3a36 (/dev/asm-diski) [OCR_VOTE]
3. ONLINE 2ddb39eaa1a54ff0bf38c48b12a7315c (/dev/asm-diskg) [OCR_VOTE]
4. ONLINE 735db22d36d14f31bf446493c25cf1bc (/dev/asm-diskf) [OCR_VOTE]
5. ONLINE 5cc9d45f6ade4f98bf16c78be12fa786 (/dev/asm-diskd) [OCR_VOTE]
Located 5 voting disk(s).
root@testdb1[+ASM1]/root$
SQL> COLUMN PATH FORMAT A20;
COLUMN name FORMAT A20;
SET LINESIZE 500
select dg.NAME as disk_group,d.NAME,MOUNT_STATUS,HEADER_STATUS,MODE_STATUS,PATH from V$ASM_DISK d ,V$ASM_DISKGROUP dg
where d.GROUP_NUMBER=dg.GROUP_NUMBER
order by dg.NAME;
SQL> SQL> SQL> 2 3
DISK_GROUP NAME MOUNT_STATUS HEADER_STATUS MODE_STATUS PATH
------------------------------------------------------------ -------------------- -------------- ------------------------ -------------- --------------------
ACFS01 ACFS01_0000 CACHED MEMBER ONLINE /dev/asm-diskj
DGARCH DGARCH_0000 CACHED MEMBER ONLINE /dev/asm-diskl
DGDATA DGDATA_0000 CACHED MEMBER ONLINE /dev/asm-diske
DGSYS DGSYS_0000 CACHED MEMBER ONLINE /dev/asm-diskk
OCR_VOTE OCR_VOTE_0001 CACHED MEMBER ONLINE /dev/asm-diski
OCR_VOTE OCR_VOTE_0004 CACHED MEMBER ONLINE /dev/asm-diskd
OCR_VOTE OCR_VOTE_0002 CACHED MEMBER ONLINE /dev/asm-diskg
OCR_VOTE OCR_VOTE_0000 CACHED MEMBER ONLINE /dev/asm-diskm
OCR_VOTE OCR_VOTE_0003 CACHED MEMBER ONLINE /dev/asm-diskf
OCR_VOTE OCR_VOTE_0005 CACHED MEMBER ONLINE /dev/asm-diskc
OCR_VOTE2 OCR_VOTE2_0000 CACHED MEMBER ONLINE /dev/asm-diskh
模拟/dev/asm-diski被dd后的情况
dd if=/dev/zero of=/dev/asm-diski bs=1024k count=20
dd if=/dev/zero of=/dev/asm-diski bs=1024k count=20
root@testdb1[+ASM1]/root$dd if=/dev/zero of=/dev/asm-diski bs=1024k count=20
20+0 records in
20+0 records out
20971520 bytes (21 MB) copied, 0.016327 s, 1.3 GB/s
root@testdb1[+ASM1]/root$
SQL> /
DISK_GROUP NAME MOUNT_STATUS HEADER_STATUS MODE_STATUS PATH
------------------------------------------------------------ -------------------- -------------- ------------------------ -------------- --------------------
ACFS01 ACFS01_0000 CACHED MEMBER ONLINE /dev/asm-diskj
DGARCH DGARCH_0000 CACHED MEMBER ONLINE /dev/asm-diskl
DGDATA DGDATA_0000 CACHED MEMBER ONLINE /dev/asm-diske
DGSYS DGSYS_0000 CACHED MEMBER ONLINE /dev/asm-diskk
OCR_VOTE OCR_VOTE_0001 CACHED CANDIDATE ONLINE /dev/asm-diski
OCR_VOTE OCR_VOTE_0004 CACHED MEMBER ONLINE /dev/asm-diskd
OCR_VOTE OCR_VOTE_0002 CACHED MEMBER ONLINE /dev/asm-diskg
OCR_VOTE OCR_VOTE_0000 CACHED MEMBER ONLINE /dev/asm-diskm
OCR_VOTE OCR_VOTE_0003 CACHED MEMBER ONLINE /dev/asm-diskf
OCR_VOTE OCR_VOTE_0005 CACHED MEMBER ONLINE /dev/asm-diskc
OCR_VOTE2 OCR_VOTE2_0000 CACHED MEMBER ONLINE /dev/asm-diskh
11 rows selected.
可以看到这块磁盘对应的磁盘头已经成为CANDIDATE状态
强制关闭节点，再重启，发现已经启动不起来了
crsctl stop crs -f
查看后台日志
root@testdb1[+ASM1]/grid/grid_home/log/testdb1$tail -100 alerttestdb1.log
2021-05-26 20:23:37.862:
[ohasd(3005)]CRS-2767:Resource state recovery not attempted for 'ora.diskmon' as its target state is OFFLINE
2021-05-26 20:23:37.862:
[ohasd(3005)]CRS-2769:Unable to failover resource 'ora.diskmon'.
[client(3820)]CRS-10001:26-May-21 20:23 ACFS-9391: Checking for existing ADVM/ACFS installation.
[client(3825)]CRS-10001:26-May-21 20:23 ACFS-9392: Validating ADVM/ACFS installation files for operating system.
[client(3827)]CRS-10001:26-May-21 20:23 ACFS-9393: Verifying ASM Administrator setup.
[client(3830)]CRS-10001:26-May-21 20:23 ACFS-9308: Loading installed ADVM/ACFS drivers.
[client(3833)]CRS-10001:26-May-21 20:23 ACFS-9154: Loading 'oracleoks.ko' driver.
[client(3842)]CRS-10001:26-May-21 20:23 ACFS-9154: Loading 'oracleadvm.ko' driver.
[client(3867)]CRS-10001:26-May-21 20:23 ACFS-9154: Loading 'oracleacfs.ko' driver.
[client(3926)]CRS-10001:26-May-21 20:23 ACFS-9327: Verifying ADVM/ACFS devices.
[client(3931)]CRS-10001:26-May-21 20:23 ACFS-9156: Detecting control device '/dev/asm/.asm_ctl_spec'.
[client(3935)]CRS-10001:26-May-21 20:23 ACFS-9156: Detecting control device '/dev/ofsctl'.
[client(3940)]CRS-10001:26-May-21 20:23 ACFS-9322: completed
2021-05-26 20:23:44.167:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log"
2021-05-26 20:23:49.508:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log"
2021-05-26 20:24:10.920:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:24:11.099:
[ohasd(3005)]CRS-2807:Resource 'ora.crsd' failed to start automatically.
2021-05-26 20:24:12.096:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:24:42.115:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:25:12.146:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:25:42.186:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:26:12.216:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:26:42.241:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:27:12.253:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2021-05-26 20:27:42.263:
[/grid/grid_home/bin/oraagent.bin(3376)]CRS-5019:All OCR locations are on ASM disk groups [OCR_VOTE], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/grid/grid_home/log/testdb1/agent/ohasd/oraagent_grid/oraagent_grid.log".
强制MOUNT OCR_VOTE磁盘
先crsctl start crs，再进行crsctl check crs
发现并不能完全启动，
root@testdb1[+ASM1]/grid/grid_home/log/testdb1$crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4529: Cluster Synchronization Services is online
CRS-4534: Cannot communicate with Event Manager
但是能够通过grid进入sqlplus / as sysasm
由于我们采用了HIGH这种方式，只坏了一块盘，可以强制mount
alter diskgroup OCR_VOTE mount force;
再正常启动
crsctl start crs
查询集群状态，等的时间可能很长
root@testdb1[+ASM1]/grid/grid_home/log/testdb1$crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
查看集群的磁盘状态
grid@testdb1[+ASM1]/home/grid$sqlplus / as sysasm
SQL*Plus: Release 11.2.0.4.0 Production on Wed May 26 20:52:39 2021
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options
SQL> COLUMN PATH FORMAT A20;
COLUMN name FORMAT A20;
SET LINESIZE 500
select dg.NAME as disk_group,d.NAME,MOUNT_STATUS,HEADER_STATUS,MODE_STATUS,PATH from V$ASM_DISK d ,V$ASM_DISKGROUP dg
where d.GROUP_NUMBER=dg.GROUP_NUMBER
order by dg.NAME;SQL> SQL> SQL> 2 3
DISK_GROUP NAME MOUNT_STATUS HEADER_STATUS MODE_STATUS PATH
------------------------------------------------------------ -------------------- -------------- ------------------------ -------------- --------------------
ACFS01 ACFS01_0000 CACHED MEMBER ONLINE /dev/asm-diskj
DGARCH DGARCH_0000 CACHED MEMBER ONLINE /dev/asm-diskl
DGDATA DGDATA_0000 CACHED MEMBER ONLINE /dev/asm-diske
DGSYS DGSYS_0000 CACHED MEMBER ONLINE /dev/asm-diskk
OCR_VOTE OCR_VOTE_0002 CACHED MEMBER ONLINE /dev/asm-diskg
OCR_VOTE OCR_VOTE_0001 MISSING UNKNOWN OFFLINE
OCR_VOTE OCR_VOTE_0000 CACHED MEMBER ONLINE /dev/asm-diskm
OCR_VOTE OCR_VOTE_0005 CACHED MEMBER ONLINE /dev/asm-diskc
OCR_VOTE OCR_VOTE_0003 CACHED MEMBER ONLINE /dev/asm-diskf
OCR_VOTE OCR_VOTE_0004 CACHED MEMBER ONLINE /dev/asm-diskd
OCR_VOTE2 OCR_VOTE2_0000 CACHED MEMBER ONLINE /dev/asm-diskh
11 rows selected.
发现磁盘已经成为 MISSING UNKNOWN 状态。