一步一步教你更換 Oracle 11g RAC 共享儲存
該環境為本人測試環境，生產環境該方案仍可使用。
一、伺服器上新增新儲存，根據原來的裸裝置繫結方式對裸盤進行繫結。
KERNEL=="sd*", PROGRAM=="/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="1ATA_VBOX_HARDDISK_VB74b34d9d-2af737fa", NAME="newasm-diskb", OWNER="grid", GROUP="asmadmin", MODE="0660"驗證新儲存繫結狀態：
[[email protected] rules.d]# ll /dev/new*
brw-rw----. 1 grid asmadmin 8, 32 Jul 26 11:32 /dev/newasm-diskb
[[email protected] rules.d]# ll /dev/asm*
brw-rw----. 1 grid asmadmin 8, 16 Jul 26 11:34 /dev/asm-diskb
二、grid使用者asmca建立磁碟組
newdata為新增的磁碟組。
三、遷移spfile&控制檔案
3.1 srvctl stop database -d orcl關閉資料庫。
3.2 新增控制檔案到相應路徑
先nomount資料庫：
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 1603411968 bytes
Fixed Size 2228784 bytes
Variable Size 1090522576 bytes
Database Buffers 503316480 bytes
Redo Buffers 7344128 bytes然後：
[[email protected] ~]$ rman target / Recovery Manager: Release 11.2.0.3.0 - Production on Tue Jul 26 17:15:43 2016 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: ORCL (not mounted) RMAN> restore controlfile to '+NEWDATA' from '+data/orcl/controlfile/Current.260.918213121'; Starting restore at 26-JUL-16 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=36 instance=orcl1 device type=DISK channel ORA_DISK_1: copied control file copy Finished restore at 26-JUL-16 RMAN> restore controlfile to '+NEWDATA' from '+data/orcl/controlfile/Current.260.918213121'; Starting restore at 26-JUL-16 using channel ORA_DISK_1 channel ORA_DISK_1: copied control file copy Finished restore at 26-JUL-16
3.3 建立pfile，並修改其部分內容
SQL> create pfile='/home/oracle/initorcl.ora' from spfile;
File created.修改控制檔案位置：
*.control_files='+DATA/orcl/controlfile/current.261.918213119','+DATA/orcl/controlfile/current.260.918213121'
修改建立資料檔案預設位置：
*.db_create_file_dest='+DATA'
修改快速回復區路徑：
*.db_recovery_file_dest='+DATA'
如仍存在包含老磁碟組的引數一併修改掉。
修改完成的結果如下：
orcl1.__db_cache_size=503316480
orcl2.__db_cache_size=587202560
orcl1.__java_pool_size=16777216
orcl2.__java_pool_size=16777216
orcl1.__large_pool_size=16777216
orcl2.__large_pool_size=16777216
orcl1.__pga_aggregate_target=654311424
orcl2.__pga_aggregate_target=654311424
orcl1.__sga_target=956301312
orcl2.__sga_target=956301312
orcl1.__shared_io_pool_size=0
orcl2.__shared_io_pool_size=0
orcl1.__shared_pool_size=369098752
orcl2.__shared_pool_size=318767104
orcl1.__streams_pool_size=33554432
orcl2.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/orcl/adump'
*.audit_trail='db'
*.cluster_database=true
*.compatible='11.2.0.0.0'
*.control_files='+newdata/orcl/controlfile/current.256.918234967','+newdata/orcl/controlfile/current.257.918234949'
*.db_block_size=8192
*.db_create_file_dest='+NEWDATA'
*.db_domain=''
*.db_name='orcl'
*.db_recovery_file_dest='+NEWDATA'
*.db_recovery_file_dest_size=104856551424
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
orcl1.instance_number=1
orcl2.instance_number=2
*.log_archive_format='%t_%s_%r.dbf'
*.memory_target=1605369856
*.open_cursors=300
*.processes=150
*.remote_listener='hadoop-cluster:1521'
*.remote_login_passwordfile='exclusive'
orcl2.thread=2
orcl1.thread=1
orcl1.undo_tablespace='UNDOTBS1'
orcl2.undo_tablespace='UNDOTBS2'
3.4 在rac中的一個節點（此處用一號結點）指定pfile啟動資料庫到mount狀態以驗證pfile正確定，建立spfile。
SQL> startup force mount pfile='/home/oracle/initorcl.ora';
ORACLE instance started.
Total System Global Area 1603411968 bytes
Fixed Size 2228784 bytes
Variable Size 1090522576 bytes
Database Buffers 503316480 bytes
Redo Buffers 7344128 bytes
Database mounted.
mount成功，建立spfile
SQL> create spfile='+newdata/orcl/spfileorcl.ora' from pfile='/home/oracle/initorcl.ora';
File created.
3.5 srvctl修改資料庫引數檔案位置。
[[email protected] ~]$ srvctl modify database -d orcl -p +newdata/orcl/spfileorcl.ora
[[email protected] ~]$ srvctl config database -d orcl
Database unique name: orcl
Database name: orcl
Oracle home: /u01/app/oracle/product/11.2.0/dbhome_1
Oracle user: oracle
Spfile: +newdata/orcl/spfileorcl.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: orcl
Database instances: orcl1,orcl2
Disk Groups: DATA,NEWDATA
Mount point paths:
Services:
Type: RAC
Database is administrator managed
3.6 關閉資料庫用新的spfile以及controlfile啟動一遍，驗證正確性。
[[email protected] ~]$ srvctl start database -d orcl
[[email protected] ~]$
[[email protected] ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Jul 26 17:29:22 2016
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> show parameter spfile
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
spfile string +NEWDATA/orcl/spfileorcl.ora
SQL> show parameter control
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time integer 7
control_files string +NEWDATA/orcl/controlfile/curr
ent.256.918234967, +NEWDATA/or
cl/controlfile/current.257.918
234949
四、遷移資料檔案
保證資料庫處於歸檔模式。rman進行backup as copy 操作
[[email protected] ~]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Tue Jul 26 17:32:21 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1445993855)
RMAN> backup as copy database format '+NEWDATA';
Starting backup at 26-JUL-16
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=53 instance=orcl1 device type=DISK
channel ORA_DISK_1: starting datafile copy
input datafile file number=00001 name=+DATA/orcl/datafile/system.256.918213045
output file name=+NEWDATA/orcl/datafile/system.260.918235957 tag=TAG20160726T173235 RECID=2 STAMP=918235979
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile copy
input datafile file number=00002 name=+DATA/orcl/datafile/sysaux.257.918213045
output file name=+NEWDATA/orcl/datafile/sysaux.261.918235981 tag=TAG20160726T173235 RECID=3 STAMP=918236002
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile copy
input datafile file number=00005 name=+DATA/orcl/datafile/example.267.918213155
output file name=+NEWDATA/orcl/datafile/example.262.918236007 tag=TAG20160726T173235 RECID=4 STAMP=918236019
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
channel ORA_DISK_1: starting datafile copy
input datafile file number=00003 name=+DATA/orcl/datafile/undotbs1.258.918213045
output file name=+NEWDATA/orcl/datafile/undotbs1.263.918236023 tag=TAG20160726T173235 RECID=5 STAMP=918236026
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile file number=00006 name=+DATA/orcl/datafile/undotbs2.268.918213341
output file name=+NEWDATA/orcl/datafile/undotbs2.264.918236029 tag=TAG20160726T173235 RECID=6 STAMP=918236030
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting datafile copy
copying current control file
output file name=+NEWDATA/orcl/controlfile/backup.265.918236033 tag=TAG20160726T173235 RECID=7 STAMP=918236034
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=+DATA/orcl/datafile/users.259.918213045
output file name=+NEWDATA/orcl/datafile/users.266.918236035 tag=TAG20160726T173235 RECID=8 STAMP=918236035
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 26-JUL-16
channel ORA_DISK_1: finished piece 1 at 26-JUL-16
piece handle=+NEWDATA/orcl/backupset/2016_07_26/nnsnf0_tag20160726t173235_0.267.918236037 tag=TAG20160726T173235 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 26-JUL-16
[[email protected] ~]$ srvctl stop database -d orcl -o immediate
[[email protected] ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Jul 26 17:35:54 2016
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup mount
ORACLE instance started.
Total System Global Area 1603411968 bytes
Fixed Size 2228784 bytes
Variable Size 1090522576 bytes
Database Buffers 503316480 bytes
Redo Buffers 7344128 bytes
Database mounted.
SQL> Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
[[email protected] ~]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Tue Jul 26 17:36:28 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1445993855, not open)
RMAN> switch database to copy;
using target database control file instead of recovery catalog
datafile 1 switched to datafile copy "+NEWDATA/orcl/datafile/system.260.918235957"
datafile 2 switched to datafile copy "+NEWDATA/orcl/datafile/sysaux.261.918235981"
datafile 3 switched to datafile copy "+NEWDATA/orcl/datafile/undotbs1.263.918236023"
datafile 4 switched to datafile copy "+NEWDATA/orcl/datafile/users.266.918236035"
datafile 5 switched to datafile copy "+NEWDATA/orcl/datafile/example.262.918236007"
datafile 6 switched to datafile copy "+NEWDATA/orcl/datafile/undotbs2.264.918236029"
RMAN> switch完成後一定要recover一下
[[email protected] ~]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Tue Jul 26 17:40:51 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1445993855, not open)
RMAN> recover database;
Starting recover at 26-JUL-16
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=35 instance=orcl1 device type=DISK
starting media recovery
media recovery complete, elapsed time: 00:00:02
Finished recover at 26-JUL-16
RMAN> exit
Recovery Manager complete.
然後srvctl方式啟動資料庫。
[[email protected] ~]$ srvctl start database -d orcl
五、遷移臨時檔案
檢視臨時表空間
select * from dba_tablespaces where contents = 'TEMPORARY';檢視臨時檔案
select * from V$TEMPFILE;為臨時表空間新增臨時檔案
SQL> alter tablespace temp add tempfile size 18M;
Tablespace altered.
刪除老儲存上的臨時檔案。
[[email protected] ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Jul 26 17:50:16 2016
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> alter tablespace temp add tempfile size 18M;
Tablespace altered.
SQL> ALTER DATABASE TEMPFILE '+DATA/orcl/tempfile/temp.266.918213143' DROP INCLUDING DATAFILES;
Database altered.
六、遷移online redo log
ALTER DATABASE ADD LOGFILE THREAD 1 GROUP 5 SIZE 50M;
ALTER DATABASE ADD LOGFILE THREAD 1 GROUP 6 SIZE 50M;
ALTER DATABASE ADD LOGFILE THREAD 2 GROUP 7 SIZE 50M;
ALTER DATABASE ADD LOGFILE THREAD 2 GROUP 8 SIZE 50M;
ALTER DATABASE DROP LOGFILE GROUP 1;
ALTER DATABASE DROP LOGFILE GROUP 2;
ALTER DATABASE DROP LOGFILE GROUP 3;
ALTER DATABASE DROP LOGFILE GROUP 4; 遇到線上日誌或未回檔的日誌採用如下命令：
alter system switch logfile;
alter system checkpoint;
七、遷移OCR&voting disk&ASM spfile
[[email protected] ~]# crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 4b1a5effbe514f46bfd6a45c20c06935 (/dev/asm-diskb) [DATA]
Located 1 voting disk(s).
[[email protected] ~]# crsctl replace votedisk +newdata
Successful addition of voting disk 350eddf550034f2bbfb890dd05d80ed0.
Successful deletion of voting disk 4b1a5effbe514f46bfd6a45c20c06935.
Successfully replaced voting disk group with +newdata.
CRS-4266: Voting file(s) successfully replaced
[[email protected] ~]# crsctl query css votedisk
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 350eddf550034f2bbfb890dd05d80ed0 (/dev/newasm-diskb) [NEWDATA]
Located 1 voting disk(s).
voting disk 遷移完成。
[[email protected] ~]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 2864
Available space (kbytes) : 259256
ID : 1844481808
Device/File Name : +DATA
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
[[email protected] ~]# ocrconfig -add +newdata
[[email protected] ~]# ocrconfig -delete +data
[[email protected] ~]# ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 3
Total space (kbytes) : 262120
Used space (kbytes) : 2864
Available space (kbytes) : 259256
ID : 1844481808
Device/File Name : +newdata
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
如遇到CRS-4602，CRS-1638 錯誤，傳送門-->http://blog.csdn.net/u011478909/article/details/51972303
SQL> create pfile='/tmp/pfile.asm' from spfile;
File created.
SQL> create spfile='+NEWDATA' from pfile='/tmp/pfile.asm';
File created.
八、解除安裝老磁碟組
asmca dismount +data磁碟組 然後將其drop
至此，oracle rac儲存更換完成。
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