Oracle集群OCR磁盤組掉盤問題處理

問題描述

填寫問題的基礎信息。

系統名稱

-

IP地址

-

操作系統

HP-UNIX

數據庫

Oracle 11.2.0.4 兩節點RAC

癥狀表現

問題的癥狀表現如下

集群的OCR磁盤組掉了一塊盤(/dev/rdisk/disk52):

查詢集群仲裁盤發現只有兩塊（原來是有三塊）：

$ 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
$ crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------1. ONLINE   08338bbafc7a4fd5bffe759528ad58a0 (/dev/rdisk/disk51) [OCR_VOTE]2. ONLINE   311f8eb857bd4f18bf862055a7f22a0c (/dev/rdisk/disk53) [OCR_VOTE]
Located 2 voting disk(s).
$ ocrcheck
Status of Oracle Cluster Registry is as follows :Version                  :          3Total space (kbytes)     :     262120Used space (kbytes)      :       2952Available space (kbytes) :     259168ID                       :  112220174Device/File Name         :  +OCR_VOTEDevice/File integrity check succeededDevice/File not configuredDevice/File not configuredDevice/File not configuredDevice/File not configuredCluster registry integrity check succeededLogical corruption check bypassed due to non-privileged user$

查看ASM告警日志發現/dev/rdisk/disk52已經被offline drop了：

處理過程

處理過程推薦按照時間以列表形式，將處理過程時間點，處理內容。

現狀分析：

既然已經被offline_drop了，日常lsdg也不會看到對應磁盤組有offline disk計數信息：

在這樣的情況下，/dev/rhsidk/disk52雖然被踢出ocr磁盤組，但是該磁盤頭信息還有關于ocr_vote磁盤組的元數據信息，如果這個時候再把/dev/rhdisk/disk52添加到OCR_VOTE磁盤組，會報錯如下：

SQL> alter diskgroup OCR_VOTE add  disk '/dev/rhsidk/disk52';
alter diskgroup OCR_VOTE add  disk '/dev/rhsidk/disk52'
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15033: disk '/dev/rhsidk/disk52' belongs to diskgroup "OCR_VOTE"

如果嘗試強制添加該磁盤到OCR_VOTE磁盤組，可能會導致實例終止（來自網絡上的測試）：

ocr磁盤組掉盤故障處理 – 提供7*24專業數據庫(Oracle,SQL Server,MySQL,PostgreSQL等)恢復和技術支持@Tel:17813235971 - 惜分飛

解決思路：

1、將/dev/rdisk/hdisk52的磁盤頭信息清除之后再加入到OCR_VOTE磁盤組，保證集群仲裁三副本冗余。

2、存儲上再劃分一小塊大小相同的磁盤，添加進OCR_VOTE磁盤組中，保證集群仲裁三副本冗余。

問題原因

問題原因如下

由于磁盤或者操作系統IO故障導致/dev/rdisk/hdisk52被踢出OCR_VOTE磁盤組，目前集群仲裁盤不能保證三副本冗余。

問題解決

問題解決如下

建議選擇方案2，服務器上盡量不要做清理磁盤頭的操作（不怕萬一，就怕一萬）。等待新的磁盤加入到OCR_VOTE磁盤組后，磁盤組內部會自動進行refresh，新磁盤會被自動同步集群仲裁信息，以下是測試環境中的測試：

測試驗證

先找一個測試環境驗證一下流程

測試環境：Oracle 11.2.0.4 RAC Centos7

準備一個正常的環境：
[grid@centos73 ~]$ crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------1. ONLINE   2654cf6472314f07bfefab8fc83311e4 (/dev/raw/raw1) [OCR]2. ONLINE   9d3d26e93ac14fb2bf7c8b2e2df979bc (/dev/raw/raw2) [OCR]3. ONLINE   0ad3fa5c46874fc4bf5e3e70df47cd3a (/dev/raw/raw3) [OCR]
Located 3 voting disk(s).
[grid@centos73 ~]$ sqlplus / as sysasmSQL*Plus: Release 11.2.0.4.0 Production on Tue Jun 10 16:53:48 2025Copyright (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 optionsSQL> set lines 900
col path for a65
select g.name,d.header_status,g.state,d.path from v$asm_disk d,v$asm_diskgroup g where 
g.group_number=d.group_number order by g.name;SQL> SQL>   2  NAME			       HEADER_STATU STATE	PATH
------------------------------ ------------ ----------- -----------------------------------------------------------------
DATA			       MEMBER	    MOUNTED	/dev/raw/raw4
OCR			       MEMBER	    MOUNTED	/dev/raw/raw2
OCR			       MEMBER	    MOUNTED	/dev/raw/raw3
OCR			       MEMBER	    MOUNTED	/dev/raw/raw1

模擬OCR磁盤組掉盤

#正常情況下，磁盤組內磁盤第0個au和第510個au互為鏡像，asm實例主要通過第一個塊來判斷那塊盤屬于哪個磁盤組


[grid@centos73 ~]$ kfed read /dev/raw/raw2 blknum=510 |egrep 'ausize|dsknum|dskname|grpname|fgname|grpnum|dsksize|blksize'
kfdhdb.dsknum:                        1 ; 0x024: 0x0001
kfdhdb.dskname:                OCR_0001 ; 0x028: length=8
kfdhdb.grpname:                     OCR ; 0x048: length=3
kfdhdb.fgname:                 OCR_0001 ; 0x068: length=8
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.dsksize:                    2048 ; 0x0c4: 0x00000800
[grid@centos73 ~]$ kfed read /dev/raw/raw2 blknum=0 |egrep 'ausize|dsknum|dskname|grpname|fgname|grpnum|dsksize|blksize'
kfdhdb.dsknum:                        1 ; 0x024: 0x0001
kfdhdb.dskname:                OCR_0001 ; 0x028: length=8
kfdhdb.grpname:                     OCR ; 0x048: length=3
kfdhdb.fgname:                 OCR_0001 ; 0x068: length=8
kfdhdb.blksize:                    4096 ; 0x0ba: 0x1000
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.dsksize:                    2048 ; 0x0c4: 0x00000800

先將磁盤的前50個au進行備份：

dd if=/dev/raw/raw2 of=/tmp/raw2.dump bs=1048576 count=50

然后破壞一下該磁盤（記得使用conv=notrunc用法）：

dd if=/dev/zero of=/dev/raw/raw2 bs=1048576 count=50 conv=notrunc

問題復現：

重啟集群之后，ASM實例報告OCR掉了一塊盤(/dev/raw/raw2):

OTE: Diskgroup used for Voting files is:OCR
Diskgroup with spfile:OCR
Diskgroup used for OCR is:OCR
NOTE: cache registered group DATA number=1 incarn=0x8e3f07c5
NOTE: cache began mount (first) of group DATA number=1 incarn=0x8e3f07c5
NOTE: cache registered group OCR number=2 incarn=0x8e3f07c6
NOTE: cache began mount (first) of group OCR number=2 incarn=0x8e3f07c6
NOTE: Assigning number (1,0) to disk (/dev/raw/raw4)
NOTE: Assigning number (2,0) to disk (/dev/raw/raw1)
NOTE: Assigning number (2,2) to disk (/dev/raw/raw3)
WARNING: GMON has insufficient disks to maintain consensus. Minimum required is 2: updating 2 PST copies from a total of 3.
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: GMON heartbeating for grp 1
GMON querying group 1 at 4 for pid 23, osid 9601
NOTE: cache opening disk 0 of grp 1: DATA_0000 path:/dev/raw/raw4
NOTE: F1X0 found on disk 0 au 2 fcn 0.0
NOTE: cache mounting (first) external redundancy group 1/0x8E3F07C5 (DATA)
* allocate domain 1, invalid = TRUE 
NOTE: attached to recovery domain 1
NOTE: cache recovered group 1 to fcn 0.29494
NOTE: redo buffer size is 256 blocks (1053184 bytes)
NOTE: LGWR attempting to mount thread 1 for diskgroup 1 (DATA)
Process LGWR (pid 9581) is running at high priority QoS for Exadata I/O
NOTE: LGWR found thread 1 closed at ABA 25.4191
NOTE: LGWR mounted thread 1 for diskgroup 1 (DATA)
NOTE: LGWR opening thread 1 at fcn 0.29494 ABA 26.4192
NOTE: cache mounting group 1/0x8E3F07C5 (DATA) succeeded
NOTE: cache ending mount (success) of group DATA number=1 incarn=0x8e3f07c5
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: GMON heartbeating for grp 2
GMON querying group 2 at 6 for pid 23, osid 9601
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: Assigning number (2,1) to disk ()
GMON querying group 2 at 7 for pid 23, osid 9601
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: cache dismounting (clean) group 2/0x8E3F07C6 (OCR) 
NOTE: messaging CKPT to quiesce pins Unix process pid: 9601, image: oracle@centos73 (TNS V1-V3)
NOTE: dbwr not being msg'd to dismount
NOTE: lgwr not being msg'd to dismount
NOTE: cache dismounted group 2/0x8E3F07C6 (OCR) 
NOTE: cache ending mount (fail) of group OCR number=2 incarn=0x8e3f07c6
NOTE: cache deleting context for group OCR 2/0x8e3f07c6
GMON dismounting group 2 at 8 for pid 23, osid 9601
NOTE: Disk OCR_0000 in mode 0x7f marked for de-assignment
NOTE: Disk  in mode 0x7f marked for de-assignment
NOTE: Disk OCR_0002 in mode 0x7f marked for de-assignment
ERROR: diskgroup OCR was not mounted
NOTE: Instance updated compatible.asm to 11.2.0.0.0 for grp 1
SUCCESS: diskgroup DATA was mounted
WARNING: Disk Group OCR containing spfile for this instance is not mounted
WARNING: Disk Group OCR containing configured OCR is not mounted
WARNING: Disk Group OCR containing voting files is not mounted
ORA-15032: not all alterations performed
ORA-15040: diskgroup is incomplete
ORA-15042: ASM disk "1" is missing from group number "2"

這個時候集群是啟動失敗的，卡在了ocr啟動失敗：

[grid@centos73 ~]$ crsctl status res -t
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4000: Command Status failed, or completed with errors.
[grid@centos73 ~]$ crsctl status res -t -init
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.asm1        ONLINE  INTERMEDIATE centos73                 OCR not started     
ora.cluster_interconnect.haip1        ONLINE  ONLINE       centos73                                     
ora.crf1        ONLINE  ONLINE       centos73                                     
ora.crsd1        ONLINE  OFFLINE                                                   
ora.cssd1        ONLINE  ONLINE       centos73                                     
ora.cssdmonitor1        ONLINE  ONLINE       centos73                                     
ora.ctssd1        ONLINE  ONLINE       centos73                 ACTIVE:0            
ora.diskmon1        OFFLINE OFFLINE                                                   
ora.evmd1        ONLINE  INTERMEDIATE centos73                                     
ora.gipcd1        ONLINE  ONLINE       centos73                                     
ora.gpnpd1        ONLINE  ONLINE       centos73                                     
ora.mdnsd1        ONLINE  ONLINE       centos73

這個時候需要強制mount一下ocr磁盤組：

強制mount之后，集群會以兩個仲裁盤形式運行，同樣的ocr會掉一塊盤：

[grid@centos73 ~]$ crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------1. ONLINE   2654cf6472314f07bfefab8fc83311e4 (/dev/raw/raw1) [OCR]2. ONLINE   0ad3fa5c46874fc4bf5e3e70df47cd3a (/dev/raw/raw3) [OCR]
Located 2 voting disk(s).
[grid@centos73 ~]$ sqlplus / as sysasmSQL*Plus: Release 11.2.0.4.0 Production on Tue Jun 10 17:29:32 2025Copyright (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 optionsSQL> set lines 900
col path for a65
select g.name,d.header_status,g.state,d.path from v$asm_disk d,v$asm_diskgroup g where 
g.group_number=d.group_number order by g.name;SQL> SQL>   2  NAME			       HEADER_STATU STATE	PATH
------------------------------ ------------ ----------- -----------------------------------------------------------------
DATA			       MEMBER	    MOUNTED	/dev/raw/raw4
OCR			       MEMBER	    MOUNTED	/dev/raw/raw3
OCR			       MEMBER	    MOUNTED	/dev/raw/raw1

asm告警日志也會顯示先前故障磁盤被強制drop了

SUCCESS: diskgroup OCR was mounted
SUCCESS: alter diskgroup ocr mount force
Tue Jun 10 17:26:28 2025
ASM Health Checker found 1 new failures
Tue Jun 10 17:26:29 2025
WARNING: failed to online diskgroup resource ora.OCR.dg (unable to communicate with CRSD/OHASD)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 3 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
NOTE: Successful voting file relocation on diskgroup OCR
ERROR: failed to update diskgroup resource ora.OCR.dg
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
NOTE: Successful voting file relocation on diskgroup OCR
Tue Jun 10 17:26:45 2025
WARNING: PST-initiated drop of 1 disk(s) in group 2(.1618937807))
SQL> alter diskgroup OCR drop disk OCR_0001 force /* ASM SERVER */ 
NOTE: GroupBlock outside rolling migration privileged region
NOTE: requesting all-instance membership refresh for group=2
Tue Jun 10 17:26:48 2025
GMON updating for reconfiguration, group 2 at 23 for pid 26, osid 10010
NOTE: cache closing disk 1 of grp 2: (not open) OCR_0001
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: group 2 PST updated.
Tue Jun 10 17:26:48 2025
NOTE: membership refresh pending for group 2/0x607f07cf (OCR)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
NOTE: Successful voting file relocation on diskgroup OCR
GMON querying group 2 at 24 for pid 18, osid 9587
NOTE: cache closing disk 1 of grp 2: (not open) _DROPPED_0001_OCR
SUCCESS: refreshed membership for 2/0x607f07cf (OCR)
NOTE: starting rebalance of group 2/0x607f07cf (OCR) at power 1
SUCCESS: alter diskgroup OCR drop disk OCR_0001 force /* ASM SERVER */
SUCCESS: PST-initiated drop disk in group 2(1618937807))
Starting background process ARB0
Tue Jun 10 17:26:51 2025
ARB0 started with pid=27, OS id=10023 
NOTE: assigning ARB0 to group 2/0x607f07cf (OCR) with 1 parallel I/O
cellip.ora not found.
NOTE: F1X0 copy 2 relocating from 1:2 to 2:2 for diskgroup 2 (OCR)
NOTE: F1X0 copy 3 relocating from 2:2 to 65534:4294967294 for diskgroup 2 (OCR)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
Tue Jun 10 17:26:54 2025
NOTE: [crsd.bin@centos73 (TNS V1-V3) 10028] opening OCR file
Starting background process ASMB
Tue Jun 10 17:26:54 2025
ASMB started with pid=29, OS id=10042 
NOTE: Successful voting file relocation on diskgroup OCR
Tue Jun 10 17:26:54 2025
NOTE: client +ASM1:+ASM registered, osid 10044, mbr 0x0
Tue Jun 10 17:26:58 2025
NOTE: Rebalance has restored redundancy for any existing control file or redo log in disk group OCR
NOTE: stopping process ARB0
SUCCESS: rebalance completed for group 2/0x607f07cf (OCR)
Tue Jun 10 17:27:00 2025
NOTE: GroupBlock outside rolling migration privileged region
NOTE: requesting all-instance membership refresh for group=2
Tue Jun 10 17:27:03 2025
GMON updating for reconfiguration, group 2 at 25 for pid 27, osid 10142
NOTE: cache closing disk 1 of grp 2: (not open) _DROPPED_0001_OCR
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: group 2 PST updated.
SUCCESS: grp 2 disk _DROPPED_0001_OCR going offline 
GMON updating for reconfiguration, group 2 at 26 for pid 27, osid 10142
NOTE: cache closing disk 1 of grp 2: (not open) _DROPPED_0001_OCR
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: group 2 PST updated.
NOTE: membership refresh pending for group 2/0x607f07cf (OCR)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
NOTE: Successful voting file relocation on diskgroup OCR
GMON querying group 2 at 27 for pid 18, osid 9587
GMON querying group 2 at 28 for pid 18, osid 9587
NOTE: Disk _DROPPED_0001_OCR in mode 0x0 marked for de-assignment
SUCCESS: refreshed membership for 2/0x607f07cf (OCR)
Tue Jun 10 17:27:09 2025
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
NOTE: Successful voting file relocation on diskgroup OCR
Tue Jun 10 17:28:01 2025
ALTER SYSTEM SET local_listener=' (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.3.113)(PORT=1521))))' SCOPE=MEMORY SID='+ASM1';
Tue Jun 10 17:31:32 2025

這個時候我們再看一下v$asm_disk中的磁盤信息發現/dev/raw/raw2變成了CANDIDATE，這是因為我們先前是把/dev/raw/raw2磁盤頭信息都清除了。

SQL> set lines 900
col path for a65
select g.name,d.header_status,g.state,d.path from v$asm_disk d,v$asm_diskgroup g where 
g.group_number(+)=d.group_number order by g.name;SQL> SQL>   2  NAME			       HEADER_STATU STATE	PATH
------------------------------ ------------ ----------- -----------------------------------------------------------------
DATA			       MEMBER	    MOUNTED	/dev/raw/raw4
OCR			       MEMBER	    MOUNTED	/dev/raw/raw1
OCR			       MEMBER	    MOUNTED	/dev/raw/raw3CANDIDATE		/dev/raw/raw2

嘗試將/dev/raw/raw2的磁盤頭信息恢復試試，使用下面的方法恢復（一定記得用conv=notrunc）：

dd if=/tmp/raw2.dump of=/dev/raw/raw2 bs=1048576 count=50 conv=notrunc

再次查看/dev/raw/raw2對應的header_status變成member了，但是現在它已經不是ocr磁盤組的一部分了

SQL> set lines 900
col path for a65
select g.name,d.header_status,d.mount_status,g.state,d.path from v$asm_disk d,v$asm_diskgroup g where 
g.group_number(+)=d.group_number order by g.name;SQL> SQL>   2  NAME			       HEADER_STATU MOUNT_S STATE	PATH
------------------------------ ------------ ------- ----------- -----------------------------------------------------------------
DATA			       MEMBER	    CACHED  MOUNTED	/dev/raw/raw4
OCR			       MEMBER	    CACHED  MOUNTED	/dev/raw/raw1
OCR			       MEMBER	    CACHED  MOUNTED	/dev/raw/raw3MEMBER	    CLOSED		/dev/raw/raw2

嘗試添加/dev/raw/raw2到ocr磁盤組：
SQL> alter diskgroup ocr add disk '/dev/raw/raw2';
alter diskgroup ocr add disk '/dev/raw/raw2'
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15033: disk '/dev/raw/raw2' belongs to diskgroup "OCR"

直接報錯，因為該磁盤頭信息顯示該盤屬于ocr磁盤組。

解決方案：

1、將/dev/raw/raw2磁盤頭信息清除再嘗試加入，這個操作要格外小心，不能清除錯盤了。

2、使用add disk force命令強制添加，原理和1差不多，但是網上有強制添加導致實例crash的案例。

3、存儲再重新劃分一塊磁盤添加進去，回收之前的磁盤（比較推薦）。

最終解決效果：

最終選擇add disk force的方式將/dev/raw/raw2加入到ocr磁盤組，生產環境有條件最好還是選擇方案3。

添加完成之后，ocr自動做refresh，將新加入的盤上同步仲裁相關信息：

Wed Jun 11 09:58:50 2025
SQL> alter diskgroup ocr add disk '/dev/raw/raw2' force 
NOTE: GroupBlock outside rolling migration privileged region
NOTE: Assigning number (2,1) to disk (/dev/raw/raw2)
NOTE: requesting all-instance membership refresh for group=2
NOTE: initializing header on grp 2 disk OCR_0001
NOTE: requesting all-instance disk validation for group=2
Wed Jun 11 09:58:51 2025
NOTE: skipping rediscovery for group 2/0x8c294763 (OCR) on local instance.
NOTE: requesting all-instance disk validation for group=2
NOTE: skipping rediscovery for group 2/0x8c294763 (OCR) on local instance.
Wed Jun 11 09:58:51 2025
GMON updating for reconfiguration, group 2 at 19 for pid 31, osid 2491
NOTE: group 2 PST updated.
NOTE: initiating PST update: grp = 2
GMON updating group 2 at 20 for pid 31, osid 2491
NOTE: group OCR: updated PST location: disk 0000 (PST copy 0)
NOTE: group OCR: updated PST location: disk 0002 (PST copy 1)
NOTE: group OCR: updated PST location: disk 0001 (PST copy 2)
NOTE: PST update grp = 2 completed successfully 
NOTE: membership refresh pending for group 2/0x8c294763 (OCR)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
NOTE: Failed voting file relocation on diskgroup OCR
GMON querying group 2 at 21 for pid 18, osid 1742
NOTE: cache opening disk 1 of grp 2: OCR_0001 path:/dev/raw/raw2
GMON querying group 2 at 22 for pid 18, osid 1742
SUCCESS: refreshed membership for 2/0x8c294763 (OCR)
NOTE: starting rebalance of group 2/0x8c294763 (OCR) at power 1
SUCCESS: alter diskgroup ocr add disk '/dev/raw/raw2' force
Starting background process ARB0
Wed Jun 11 09:58:54 2025
ARB0 started with pid=28, OS id=4645 
NOTE: assigning ARB0 to group 2/0x8c294763 (OCR) with 1 parallel I/O
cellip.ora not found.
NOTE: F1X0 copy 3 relocating from 65534:4294967294 to 1:2 for diskgroup 2 (OCR)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 2 voting file(s).
NOTE: Voting file relocation is required in diskgroup OCR
NOTE: Attempting voting file relocation on diskgroup OCR
Wed Jun 11 09:59:01 2025
NOTE: voting file allocation on grp 2 disk OCR_0001
NOTE: Successful voting file relocation on diskgroup OCR
Wed Jun 11 09:59:06 2025
NOTE: GroupBlock outside rolling migration privileged region
NOTE: requesting all-instance membership refresh for group=2
NOTE: stopping process ARB0
SUCCESS: rebalance completed for group 2/0x8c294763 (OCR)
NOTE: membership refresh pending for group 2/0x8c294763 (OCR)
Wed Jun 11 09:59:12 2025
GMON querying group 2 at 23 for pid 18, osid 1742
Wed Jun 11 09:59:12 2025
SUCCESS: refreshed membership for 2/0x8c294763 (OCR)
NOTE: Attempting voting file refresh on diskgroup OCR
NOTE: Refresh completed on diskgroup OCR
. Found 3 voting file(s).

集群仲裁信息恢復三副本：

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