linux dump命令 异机,Oracle 11.2.0.4 从单实例，使用RMAN 异机恢复到RAC
Oracle 11.2.0.4從單實例，使用RMAN異機恢復(fù)到RAC
注意：
(1)遷移的2個db版本版本要一致。包括小版本。
(2)RMAN異機恢復(fù)的時候，db_name必須相同。如果說要想改成其他的實例名，可以在恢復(fù)成功后，用nid命令修改。實例名的信息會記錄到控制文件里，所以如果在恢復(fù)的時候，如果實例名不一致，恢復(fù)的時候會報錯。
--源庫信息：平臺：Linux 6.5，單實例，版本如下：
SQL> select * from
v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g
Enterprise Edition Release 11.2.0.4.0 - 64bit Production
PL/SQL Release
11.2.0.4.0 - Production
CORE
11.2.0.4.0 Production
TNS for Linux: Version
11.2.0.4.0 - Production
NLSRTL Version
11.2.0.4.0 - Production
--目標(biāo)庫：11.2.0.4 RAC,平臺：Linux 6.5，版本如下：
SQL> set lin 160
pages 200
SQL> select * from
gv$version;
INST_ID
BANNER
----------
--------------------------------------------------------------------------------
1 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit
Production
1 PL/SQL Release 11.2.0.4.0 - Production
1 CORE 11.2.0.4.0 Production
1 TNS for Linux: Version 11.2.0.4.0 - Production
1 NLSRTL Version 11.2.0.4.0 - Production
2 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit
Production
2 PL/SQL Release 11.2.0.4.0 - Production
2 CORE 11.2.0.4.0 Production
2 TNS for Linux: Version 11.2.0.4.0 - Production
2 NLSRTL Version 11.2.0.4.0 - Production
10 rows selected.
我的RAC環(huán)境上已經(jīng)存在了實例orcl，而我們源庫的實例名是：neal。所以恢復(fù)完成后會有2個實例。
[root@rac1 ~]# crsctl
stat res -t
--------------------------------------------------------------------------------
NAME
TARGET? STATE
SERVER
STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.FRA.dg
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.LISTENER.lsnr
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.OCRVOTING.dg
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.asm
ONLINE? ONLINE
rac1
Started
ONLINE? ONLINE
rac2
Started
ora.gsd
OFFLINE OFFLINE
rac1
OFFLINE OFFLINE
rac2
ora.net1.network
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.ons
ONLINE? ONLINE
rac1
ONLINE
ONLINE
rac2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1??????? ONLINE
ONLINE
rac1
ora.cvu
1??????? ONLINE
ONLINE
rac1
ora.oc4j
1??????? ONLINE
ONLINE
rac1
ora.orcl.db
1??????? ONLINE
ONLINE
rac1
Open
2??????? ONLINE
ONLINE
rac2
Open
ora.rac1.vip
1??????? ONLINE? ONLINE
rac1
ora.rac2.vip
1??????? ONLINE
ONLINE
rac2
ora.scan1.vip
1??????? ONLINE
ONLINE
rac1
二.遷移步驟說明
2.1在源庫用RMAN進(jìn)行全備
源庫實例名：neal，為了確認(rèn)遷移成功，我們現(xiàn)在源庫上創(chuàng)建一個表test，并插入幾條記錄。
SQL> select * from
test;
A
----------
1
2
3
4
備份之后的信息：
RMAN> list backup
summary;
using target database
control file instead of recovery catalog
List of Backups
===============
Key
TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - -----------
--------------- ------- ------- ---------- ---
3
B? 0? A DISK
12-JUL-16
1?????? 1
NO???????? NEAL_LV0
5
B? 0? A DISK
12-JUL-16
1?????? 1
NO???????? NEAL_LV0
6
B? 0? A DISK
12-JUL-16?????? 1
1
NO???????? NEAL_LV0
7
B? 0? A DISK
12-JUL-16
1?????? 1
NO???????? NEAL_LV0
9
B? A? A DISK
12-JUL-16
1?????? 1
NO???????? ARC_BAK
10
B? A? A DISK
12-JUL-16
1?????? 1?????? NO
ARC_BAK
11
B? F? A DISK
12-JUL-16
1?????? 1
NO???????? CTLFILE_BAK
12
B? F? A DISK
12-JUL-16
1?????? 1
NO???????? SPFILE_BAK
2.2將備份文件SCP到RAC節(jié)點1的相同位置。
當(dāng)然也可以copy到不同位置，但那樣就需要注冊一下，我這里copy到相同的位置()：
[oracle@centos backup]$
scp /home/oracle/backup/* 192.168.8.221:~/backup/
oracle@192.168.8.221's
password:
neal_arch_0drah3bo_1_1_20160712
100% 4358KB?? 4.3MB/s?? 00:00
neal_arch_0erah3bo_1_1_20160712
100%
2560???? 2.5KB/s?? 00:00
neal_ctlfile_0frah3bq_1_1_20160712
100%
9568KB?? 9.3MB/s?? 00:00
neal_lv0_07rah391_1_1_20160712
100%
634MB? 25.4MB/s?? 00:25
neal_lv0_08rah391_1_1_20160712
100%? 375MB?? 9.9MB/s?? 00:38
neal_lv0_09rah391_1_1_20160712
100% 2912KB?? 2.8MB/s?? 00:00
neal_lv0_0brah399_1_1_20160712
100% 1344KB?? 1.3MB/s?? 00:00
neal_spfile_0grah3bs_1_1_20160712
100%
96KB? 96.0KB/s?? 00:00
2.3還原并修改初始化文件
2.3.1還原spfile到pfile
[oracle@rac1 ~]$ export
ORACLE_SID=neal1
[oracle@rac1 ~]$ rman
target /
Recovery Manager:
Release 11.2.0.4.0 - Production on Wed Jul 13 07:05:47 2016
Copyright (c) 1982,
2011, Oracle and/or its affiliates.? All rights reserved.
connected to target
database (not started)
RMAN> startup nomount
startup failed:
ORA-01078: failure in processing system parameters
LRM-00109: could not
open parameter file '/u01/app/oracle/11.2.0/db_1/dbs/initneal1.ora'
starting Oracle instance
without parameter file for retrieval of spfile
Oracle instance started
Total System Global
Area??? 1068937216 bytes
Fixed
Size
2260088 bytes
Variable
Size
281019272 bytes
Database
Buffers
780140544 bytes
Redo
Buffers
5517312 bytes
RMAN> restore spfile
to pfile '/u01/app/oracle/11.2.0/db_1/dbs/initneal1.ora' from
'/home/oracle/backup/neal_spfile_0grah3bs_1_1_20160712';
Starting restore at
2016/07/13 07:07:52
using target database
control file instead of recovery catalog
allocated channel:
ORA_DISK_1
channel ORA_DISK_1:
SID=25 device type=DISK
channel ORA_DISK_1:
restoring spfile from AUTOBACKUP
/home/oracle/backup/neal_spfile_0grah3bs_1_1_20160712
channel ORA_DISK_1:
SPFILE restore from AUTOBACKUP complete
Finished restore at
2016/07/13 07:07:57
2.3.2查看ASM實例的相關(guān)目錄信息
[grid@rac1 ~]$ asmcmd
lsdg
State
Type??? Rebal? Sector
Block?????? AU? Total_MB? Free_MB
Req_mir_free_MB? Usable_file_MB? Offline_disks
Voting_files? Name
MOUNTED
EXTERN? N???????? 512
4096? 1048576???? 10240
6798
0
6798
0
N? DATA/
MOUNTED
EXTERN? N???????? 512
4096? 1048576???? 10240
9152
0
9152
0
N? FRA/
MOUNTED
NORMAL? N???????? 512
4096? 1048576????? 3072???? 2146
1024
561
0
Y? OCRVOTING/
2.3.3修改初始化參數(shù)
注意事項：
(1)RMAN異機恢復(fù)的db_name必須和備份的一致，如果說想改成其他名稱，可以等還原之后，在用nid命令修改。
(2)控制文件需要指定到共享設(shè)備上
(3)檢查audit_file_dest，background_dump_dest，core_dump_dest，log_archive_dest_1，user_dump_dest等參數(shù)的位置。如果2個節(jié)點和共享位置沒有對應(yīng)的目錄，先把目錄建好。
--根據(jù)initneal1.ora文件中的參數(shù)創(chuàng)建節(jié)點的目錄，在所有節(jié)點所有檢查：
[oracle@rac1 ~]$ mkdir
-p /u01/app/oracle/admin/neal/adump
[oracle@rac2 ~]$ mkdir
-p /u01/app/oracle/admin/neal/adump
--最終我們修改之后的pfile文件如下：
[oracle@rac1 dbs]$ cat
initneal1.ora
*.audit_file_dest='/u01/app/oracle/admin/neal/adump'
*.audit_trail='db'
*.compatible='11.2.0.4.0'
*.control_files='+DATA','+FRA'
*.db_block_size=8192
*.db_domain=''
*.db_name='neal'
*.db_recovery_file_dest='+FRA'
*.db_recovery_file_dest_size=4385144832
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP)
(SERVICE=nealXDB)'
*.memory_target=524288000
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_management='AUTO'
*.cluster_database_instances=2
*.cluster_database=false
orcl2.thread=2
orcl1.thread=1
orcl2.undo_tablespace='UNDOTBS2'
orcl1.undo_tablespace='UNDOTBS1'
orcl2.instance_number=2
orcl1.instance_number=1
具體內(nèi)存根據(jù)實際情況進(jìn)行調(diào)整。
*.cluster_database=false
這里要先設(shè)置為flase，才能進(jìn)行RMAN恢復(fù)操作。恢復(fù)完成在改成true。
2.3.4用修改的pfile來創(chuàng)建spfile，注意放在共享設(shè)備上
--先創(chuàng)建這個目錄結(jié)構(gòu)：
ASMCMD> pwd
+data/NEAL/PARAMETERFILE
[oracle@rac1 ~]$ sqlplus
/ as sysdba
SQL> create
spfile='+DATA/NEAL/PARAMETERFILE/spfileneal.ora' from
pfile='/u01/app/oracle/11.2.0/db_1/dbs/initneal1.ora';
File created.
--驗證：
ASMCMD> pwd
+data/NEAL/PARAMETERFILE
ASMCMD> ls
spfileneal.ora
在所有節(jié)點上，修改pfile內(nèi)容，將其指向共享設(shè)備上的spfile：
--節(jié)點1：
[oracle@rac1 ~]# echo
"SPFILE='+DATA/NEAL/PARAMETERFILE/spfileneal.ora'" >
/u01/app/oracle/11.2.0/db_1/dbs/initneal1.ora
--節(jié)點2：
[oracle@rac2 dbs]$ echo
"SPFILE='+DATA/NEAL/PARAMETERFILE/spfileneal.ora'" >
/u01/app/oracle/11.2.0/db_1/dbs/initneal2.ora
2.4創(chuàng)建口令文件
在所有節(jié)點執(zhí)行，注意密碼要和原庫一樣：
[oracle@rac1 ~]# orapwd
file=?/dbs/orapwneal1 password=oracle
[oracle@rac2 ~]$ orapwd
file=?/dbs/orapwneal2 password=oracle
2.5還原控制文件
在其中一個節(jié)點上執(zhí)行。
2.5.1用spfile，將DB啟動到nomount狀態(tài)
SQL> shutdown
immediate;
ORA-01507: database not
mounted
ORACLE instance shut
down.
SQL> startup nomount
ORACLE instance started.
2.5.2 RMAN執(zhí)行對控制文件的恢復(fù)
RMAN> restore
controlfile from '/home/oracle/backup/neal_ctlfile_0frah3bq_1_1_20160712';
Starting restore at
2016/07/13 07:19:49
allocated channel:
ORA_DISK_1
channel ORA_DISK_1:
SID=1 device type=DISK
channel ORA_DISK_1:
restoring control file
channel ORA_DISK_1:
restore complete, elapsed time: 00:00:01
output file
name=+DATA/neal/controlfile/current.269.917075991
output file name=+FRA/neal/controlfile/current.285.917075991
Finished restore at
2016/07/13 07:19:51
--這個位置是我們在spfile里指定的。
2.6 restore數(shù)據(jù)庫
在其中一個節(jié)點執(zhí)行。我這里在節(jié)點1操作。個人習(xí)慣，相關(guān)操作都在節(jié)點1進(jìn)行。
2.6.1將數(shù)據(jù)庫啟動到MOUNT狀態(tài)
RMAN> alter database
mount;
database mounted
released channel: ORA_DISK_1
2.6.2查看源庫數(shù)據(jù)文件存儲位置信息
注意一點，我們單實例和RAC實例存儲數(shù)據(jù)文件的位置不同，如果我們使用rman的duplicate，那么我們使用log_file_name_convert和db_file_name_convert來進(jìn)行轉(zhuǎn)換，
在這個實驗中，我們使用的是RMAN的異機恢復(fù)，所以只能在restore的時候用set newname來進(jìn)行轉(zhuǎn)換。
在源庫執(zhí)行如下查詢：
SQL> set linesize 80
SQL> set lin 160
pages 200
SQL> col file_name
for a50
SQL> select 'set
newname for datafile '||file_id||' to '''||'+DATA'||''';' from dba_data_files;
'SETNEWNAMEFORDATAFILE'||FILE_ID||'TO'''||'+DATA'||''';'
-----------------------------------------------------------------------------
set newname for datafile
4 to '+DATA';
set newname for datafile
3 to '+DATA';
set newname for datafile
2 to '+DATA';
set newname for datafile
1 to '+DATA';
SQL> select 'set
newname for tempfile '||file_id||' to '''||'+DATA'||''';' from dba_temp_files;
'SETNEWNAMEFORTEMPFILE'||FILE_ID||'TO'''||'+DATA'||''';'
-----------------------------------------------------------------------------
set newname for tempfile
1 to '+DATA';
2.6.3在RAC上restore數(shù)據(jù)文件
腳本：
run {
set newname for datafile
4 to '+DATA';
set newname for datafile
3 to '+DATA';
set newname for datafile
2 to '+DATA';
set newname for datafile
1 to '+DATA';
set newname for tempfile
1 to '+DATA';
restore database;
switch datafile all;
switch tempfile all;
}
注意，對switch的說明：
對于nocatalog模式下，rman備份的信息是保存在控制文件里的，包括文件的路徑信息。這里的switch的作用，就是更新控制文件里的信息。
restore的時候不會對temp表空間進(jìn)行restore。所以等restore之后，我們需要手工創(chuàng)建temp表空間。
不過在這個測試?yán)?#xff0c;我們還是對tempfile進(jìn)行了指定。但是這個操作只更新控制文件，不恢復(fù)數(shù)據(jù)文件。
RMAN> run {
set newname for datafile
4 to '+DATA';
set newname for datafile
3 to '+DATA';
set newname for datafile
2 to '+DATA';
set newname for datafile
1 to '+DATA';
set newname for tempfile
1 to '+DATA';
restore database;
switch datafile all;
3> switch tempfile
all;
4> 5> 6> 7>
8> 9> 10> }
executing command: SET
NEWNAME
executing command: SET
NEWNAME
executing command: SET
NEWNAME
executing command: SET
NEWNAME
executing command: SET
NEWNAME
Starting restore at
2016/07/13 07:22:44
Starting implicit
crosscheck backup at 2016/07/13 07:22:44
allocated channel:
ORA_DISK_1
channel ORA_DISK_1:
SID=1 device type=DISK
Crosschecked 10 objects
Finished implicit
crosscheck backup at 2016/07/13 07:22:46
Starting implicit
crosscheck copy at 2016/07/13 07:22:46
using channel ORA_DISK_1
Finished implicit
crosscheck copy at 2016/07/13 07:22:46
searching for all files
in the recovery area
cataloging files...
no files cataloged
using channel ORA_DISK_1
channel ORA_DISK_1:
starting datafile backup set restore
channel ORA_DISK_1:
specifying datafile(s) to restore from backup set
channel ORA_DISK_1:
restoring datafile 00003 to +DATA
channel ORA_DISK_1:
reading from backup piece /home/oracle/backup/neal_lv0_09rah391_1_1_20160712
channel ORA_DISK_1:
piece handle=/home/oracle/backup/neal_lv0_09rah391_1_1_20160712 tag=NEAL_LV0
channel ORA_DISK_1:
restored backup piece 1
channel ORA_DISK_1:
restore complete, elapsed time: 00:00:03
channel ORA_DISK_1:
starting datafile backup set restore
channel ORA_DISK_1:
specifying datafile(s) to restore from backup set
channel ORA_DISK_1:
restoring datafile 00004 to +DATA
channel ORA_DISK_1:
reading from backup piece /home/oracle/backup/neal_lv0_0brah399_1_1_20160712
channel ORA_DISK_1:
piece handle=/home/oracle/backup/neal_lv0_0brah399_1_1_20160712 tag=NEAL_LV0
channel ORA_DISK_1:
restored backup piece 1
channel ORA_DISK_1:
restore complete, elapsed time: 00:00:01
channel ORA_DISK_1:
starting datafile backup set restore
channel ORA_DISK_1:
specifying datafile(s) to restore from backup set
channel ORA_DISK_1:
restoring datafile 00002 to +DATA
channel ORA_DISK_1:
reading from backup piece /home/oracle/backup/neal_lv0_08rah391_1_1_20160712
channel ORA_DISK_1:
piece handle=/home/oracle/backup/neal_lv0_08rah391_1_1_20160712 tag=NEAL_LV0
channel ORA_DISK_1:
restored backup piece 1
channel ORA_DISK_1:
restore complete, elapsed time: 00:01:15
channel ORA_DISK_1:
starting datafile backup set restore
channel ORA_DISK_1:
specifying datafile(s) to restore from backup set
channel ORA_DISK_1:
restoring datafile 00001 to +DATA
channel ORA_DISK_1:
reading from backup piece /home/oracle/backup/neal_lv0_07rah391_1_1_20160712
channel ORA_DISK_1:
piece handle=/home/oracle/backup/neal_lv0_07rah391_1_1_20160712 tag=NEAL_LV0
channel ORA_DISK_1:
restored backup piece 1
channel ORA_DISK_1:
restore complete, elapsed time: 00:00:55
Finished restore at
2016/07/13 07:25:03
datafile 1 switched to
datafile copy
input datafile copy
RECID=5 STAMP=917076307 file name=+DATA/neal/datafile/system.273.917076249
datafile 2 switched to
datafile copy
input datafile copy
RECID=6 STAMP=917076307 file name=+DATA/neal/datafile/sysaux.272.917076175
datafile 3 switched to
datafile copy
input datafile copy
RECID=7 STAMP=917076309 file name=+DATA/neal/datafile/undotbs1.270.917076169
datafile 4 switched to
datafile copy
input datafile copy
RECID=8 STAMP=917076309 file name=+DATA/neal/datafile/users.271.917076171
renamed tempfile 1 to
+DATA in control file
2.7 recover數(shù)據(jù)庫
在執(zhí)行restore的節(jié)點執(zhí)行，因為備份文件在該節(jié)點上。
RMAN> recover
database;
Starting recover at
2016/07/13 07:25:28
using channel ORA_DISK_1
starting media recovery
channel ORA_DISK_1:
starting archived log restore to default destination
channel ORA_DISK_1:
restoring archived log
archived log thread=1
sequence=6
channel ORA_DISK_1:
reading from backup piece /home/oracle/backup/neal_arch_0drah3bo_1_1_20160712
channel ORA_DISK_1:
piece handle=/home/oracle/backup/neal_arch_0drah3bo_1_1_20160712 tag=ARC_BAK
channel ORA_DISK_1:
restored backup piece 1
channel ORA_DISK_1:
restore complete, elapsed time: 00:00:02
archived log file
name=+FRA/neal/archivelog/2016_07_13/thread_1_seq_6.286.917076331 thread=1
sequence=6
channel default:
deleting archived log(s)
archived log file
name=+FRA/neal/archivelog/2016_07_13/thread_1_seq_6.286.917076331 RECID=3
STAMP=917076331
channel ORA_DISK_1:
starting archived log restore to default destination
channel ORA_DISK_1:
restoring archived log
archived log thread=1
sequence=7
channel ORA_DISK_1:
reading from backup piece /home/oracle/backup/neal_arch_0erah3bo_1_1_20160712
channel ORA_DISK_1:
piece handle=/home/oracle/backup/neal_arch_0erah3bo_1_1_20160712 tag=ARC_BAK
channel ORA_DISK_1:
restored backup piece 1
channel ORA_DISK_1:
restore complete, elapsed time: 00:00:01
archived log file
name=+FRA/neal/archivelog/2016_07_13/thread_1_seq_7.286.917076333 thread=1
sequence=7
channel default:
deleting archived log(s)
archived log file
name=+FRA/neal/archivelog/2016_07_13/thread_1_seq_7.286.917076333 RECID=4
STAMP=917076332
unable to find archived
log
archived log thread=1
sequence=8
RMAN-00571:
===========================================================
RMAN-00569:
=============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571:
===========================================================
RMAN-03002: failure of
recover command at 07/13/2016 07:25:40
RMAN-06054: media
recovery requesting unknown archived log for thread 1 with sequence 8 and
starting SCN of 1007315
這里是提醒恢復(fù)到一個未知的scn號。因為這部分SCN還在online redo里，可以在alter database mount之后，通過set until scn或者set until time命令設(shè)置恢復(fù)到的scn號或時間，
或者把源庫的這些文件在copy過來，在應(yīng)用一下。就可以避免這個錯誤。
2.8最重要一步：將源庫剩下的歸檔和online redo copy過來進(jìn)行recover
在數(shù)據(jù)量大的時候，用RMAN進(jìn)行數(shù)據(jù)遷移，能夠降低切換的時間。即先用之前的備份進(jìn)行恢復(fù)，然后把剩下的歸檔copy過來，進(jìn)行recover。
這里對業(yè)務(wù)的影響，僅僅是最后小部分歸檔的處理，數(shù)據(jù)庫可能很大，但最后決定我們停機時間的，就是最后一部分歸檔的處理。
2.8.1在源庫創(chuàng)建一張表，然后把數(shù)據(jù)庫實例停掉
SQL> alter system
switch logfile;
System altered.
SQL> /
System altered.
SQL> create table
sun(id number,name varchar2(100));
Table created.
SQL> insert into sun
values(1,'sun');
1 row created.
SQL> commit;
Commit complete.
--關(guān)閉數(shù)據(jù)庫，保證數(shù)據(jù)一致性：
SQL> shutdown
immediate;
Database closed.
Database dismounted.
ORACLE instance shut
down.
2.8.2將剩下的歸檔和online redo全部copy到RAC的備份目錄下
[oracle@centos 2016_07_12]$
scp /u01/oracle/fast_recovery_area/NEAL/archivelog/2016_07_12/*
192.168.8.221:~/backup/
oracle@192.168.8.221's
password:
o1_mf_1_8_cr9vhr6q_.arc
100%?? 12MB? 11.7MB/s?? 00:00
[oracle@centos
2016_07_13]$ scp /u01/oracle/fast_recovery_area/NEAL/archivelog/2016_07_13/*
192.168.8.221:~/backup/
oracle@192.168.8.221's
password:
o1_mf_1_10_crc2ss6g_.arc
100%
109KB 109.0KB/s?? 00:00
o1_mf_1_11_crc2ssy6_.arc
100%
1024???? 1.0KB/s?? 00:00
o1_mf_1_9_crc2h7j2_.arc
100%?? 55KB? 55.0KB/s?? 00:00
[oracle@centos neal]$
scp /u01/oracle/oradata/neal/redo0*.log 192.168.8.221:~/backup/
oracle@192.168.8.221's
password:
redo01.log
100%
50MB? 16.7MB/s?? 00:03
redo02.log
100%
50MB? 50.0MB/s?? 00:01
redo03.log
100%?? 50MB? 12.5MB/s?? 00:04
2.8.3重新注冊歸檔文件和online redo log，并同步數(shù)據(jù)
2.8.3.1注冊歸檔文件
如果有歸檔，我們需要從單機復(fù)制到RAC節(jié)點上，但RAC節(jié)點的數(shù)據(jù)庫并沒有相關(guān)記錄。所以我們需要先將歸檔文件注冊到控制文件里。然后才能使用。
RMAN> catalog
archivelog
'/home/oracle/backup/o1_mf_1_8_cr9vhr6q_.arc','/home/oracle/backup/o1_mf_1_10_crc2ss6g_.arc','/home/oracle/backup/o1_mf_1_11_crc2ssy6_.arc','/home/oracle/backup/o1_mf_1_9_crc2h7j2_.arc';
cataloged archived log
archived log file
name=/home/oracle/backup/o1_mf_1_8_cr9vhr6q_.arc RECID=8 STAMP=917077069
cataloged archived log
archived log file
name=/home/oracle/backup/o1_mf_1_10_crc2ss6g_.arc RECID=5 STAMP=917076646
cataloged archived log
archived log file
name=/home/oracle/backup/o1_mf_1_11_crc2ssy6_.arc RECID=6 STAMP=917076646
cataloged archived log
archived log file
name=/home/oracle/backup/o1_mf_1_9_crc2h7j2_.arc RECID=7 STAMP=917076646
2.8.3.2移動online redo log到對應(yīng)位置
--現(xiàn)在單實例進(jìn)行查詢：
SQL> select member
from v$logfile;
MEMBER
--------------------------------------------------------------------------------
/u01/oracle/oradata/neal/redo03.log
/u01/oracle/oradata/neal/redo02.log
/u01/oracle/oradata/neal/redo01.log
在RAC上把online redo log日志放入到對應(yīng)的位置(目錄位置必須還原來單實例目錄一致)：
[oracle@rac1 ~]$ mkdir
-p /u01/oracle/oradata/neal/
[oracle@rac1 ~]$ mv
/home/oracle/backup/redo*.log /u01/oracle/oradata/neal/
--再次執(zhí)行recover操作：
RMAN> recover
database;
Starting recover at
2016/07/13 07:37:50
using channel ORA_DISK_1
starting media recovery
archived log for thread
1 with sequence 8 is already on disk as file
/home/oracle/backup/o1_mf_1_8_cr9vhr6q_.arc
archived log for thread
1 with sequence 9 is already on disk as file
/home/oracle/backup/o1_mf_1_9_crc2h7j2_.arc
archived log for thread
1 with sequence 10 is already on disk as file
/home/oracle/backup/o1_mf_1_10_crc2ss6g_.arc
archived log for thread
1 with sequence 11 is already on disk as file
/home/oracle/backup/o1_mf_1_11_crc2ssy6_.arc
archived log file
name=/home/oracle/backup/o1_mf_1_8_cr9vhr6q_.arc thread=1 sequence=8
archived log file
name=/home/oracle/backup/o1_mf_1_9_crc2h7j2_.arc thread=1 sequence=9
archived log file
name=/home/oracle/backup/o1_mf_1_10_crc2ss6g_.arc thread=1 sequence=10
archived log file
name=/home/oracle/backup/o1_mf_1_11_crc2ssy6_.arc thread=1 sequence=11
archived log for thread
1 with sequence 12 is already on disk as file
/u01/oracle/oradata/neal/redo03.log
archived log file
name=/u01/oracle/oradata/neal/redo03.log thread=1 sequence=12
media recovery complete,
elapsed time: 00:00:00
Finished recover at
2016/07/13 07:44:27
--注意：這次我們是第二次進(jìn)行recover database，這里會我們copy過來的日志全部應(yīng)用了，并且，注意這里是完全恢復(fù)，也就說這里沒有數(shù)據(jù)丟失，我們不需要用open resetlogs來打開數(shù)據(jù)庫。
--重置歸檔位置：
[oracle@rac1 ~]$ sqlplus
/ as sysdba
SQL*Plus: Release
11.2.0.4.0 Production on Wed Jul 13 07:45:02 2016
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 Partitioning,
Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real
Application Testing options
SQL> alter system set
log_archive_dest_1='LOCATION=+FRA' SID='*';
System altered.
2.9處理online redo
--原來的redo存放位置：
SQL> select * from
v$logfile;
GROUP# STATUS? TYPE??? MEMBER
---------- -------
------- -----------------------------------
3
ONLINE
/u01/oracle/oradata/neal/redo03.log
2?? ???????? ONLINE
/u01/oracle/oradata/neal/redo02.log
1
ONLINE
/u01/oracle/oradata/neal/redo01.log
RAC的redo是需要存放在共享設(shè)備上的，所以我們這里需要進(jìn)行一些轉(zhuǎn)換操作。
SQL> alter database
rename file '/u01/oracle/oradata/neal/redo01.log' to '+DATA';
Database altered.
SQL> alter database
rename file '/u01/oracle/oradata/neal/redo02.log' to '+DATA';
Database altered.
SQL> alter database
rename file '/u01/oracle/oradata/neal/redo03.log' to '+DATA';
Database altered.
我們這里只是更改了online redo的記錄，實際上文件并沒有生成，當(dāng)我們open db的時候，會自動創(chuàng)建online redo log。
2.10 open resetlogs打開DB
雖然我們前面做的是完全恢復(fù)，確保沒有數(shù)據(jù)丟失，但我們的需要用resetlogs來打開數(shù)據(jù)庫，來重建我們的online redo log。
SQL> alter database
open resetlogs;
Database altered.
2.11檢查并修改幾個初始化參數(shù)
SQL> select * from
v$option where parameter = 'Real Application Clusters';
PARAMETER
----------------------------------------------------------------
VALUE
----------------------------------------------------------------
Real Application
Clusters
TRUE
SQL> show parameter
cluster
NAME
TYPE? VALUE
------------------------------------
----------- ------------------------------
cluster_database
boolean?? FALSE
cluster_database_instances
integer?? 1
cluster_interconnects
string
SQL> show parameter
thread
NAME
TYPE? VALUE
------------------------------------
----------- ------------------------------
parallel_threads_per_cpu
integer?? 2
thread
integer?? 0
SQL> show parameter
instance_number
NAME
TYPE? VALUE
------------------------------------
----------- ------------------------------
instance_number
integer?? 0
SQL> alter system set
cluster_database=true scope=spfile sid='*';
System altered.
SQL> alter system set
cluster_database_instances=2 scope=spfile sid='*';
System altered.
SQL> alter system set
instance_number=1 scope=spfile sid='neal1';
System altered.
SQL> alter system set
instance_number=2 scope=spfile sid='neal2';
System altered.
SQL> alter system set
thread=1 scope=spfile sid='neal1';
System altered.
SQL> alter system set
thread=2 scope=spfile sid='neal2';
System altered.
2.12創(chuàng)建節(jié)點2的undo表空間
SQL> show parameter
undo_tablespace
NAME
TYPE? VALUE
------------------------------------
----------- ------------------------------
undo_tablespace
string UNDOTBS1
SQL> create undo
tablespace UNDOTBS2 datafile '+DATA' size 100m;
Tablespace created.
SQL> alter system set
undo_tablespace='UNDOTBS2' scope=spfile sid='neal2';
System altered.
2.13添加rac2節(jié)點的redo文件
rac的redo是接其他節(jié)點來的，我們之前的rac1上已經(jīng)有3組，所以我們這里從4開始，在添加2組給rac2，使用thread 2.
SQL> alter database
add logfile thread 2 group 4 '+DATA' size 50m;
Database altered.
SQL> alter database
add logfile thread 2 group 5 '+DATA' size 50m;
Database altered.
SQL> alter database
add logfile thread 2 group 6 '+DATA' size 50m;
Database altered.
SQL> alter database
enable thread 2;
Database altered.
2.14將其他信息注冊到CRS里
--一定要用oracle來執(zhí)行
[oracle@rac1 ~]$ srvctl
add database -d neal -o $ORACLE_HOME -p +DATA/NEAL/PARAMETERFILE/spfileneal.ora
[oracle@rac1 ~]$ srvctl
add instance -d neal -i neal1 -n rac1
[oracle@rac1 ~]$ srvctl
add instance -d neal -i neal2 -n rac2
2.15重啟節(jié)點1和節(jié)點2上的實例，使相關(guān)參數(shù)生效
我們之前都只啟動了一個實例1，所以這里重啟實例1，在啟動實例2
[oracle@rac1 ~]$ sqlplus
/ as sysdba
SQL*Plus: Release
11.2.0.4.0 Production on Wed Jul 13 07:52:23 2016
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 Partitioning,
Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real
Application Testing options
SQL> shutdown
immediate;
Database closed.
Database dismounted.
ORACLE instance shut
down.
SQL> startup
ORACLE instance started.
Total System Global
Area? 521936896 bytes
Fixed
Size??? ??? 2254824 bytes
Variable
Size???? ? 419432472 bytes
Database Buffers
96468992 bytes
Redo
Buffers????? ??? 3780608 bytes
Database mounted.
Database opened.
[oracle@rac2 dbs]$ export ORACLE_SID=neal2
[oracle@rac2 dbs]$ sqlplus / as sysdba
SQL*Plus: Release
11.2.0.4.0 Production on Wed Jul 13 07:53:10 2016
Copyright (c) 1982,
2013, Oracle.? All rights reserved.
Connected to an idle
instance.
SQL> startup
ORACLE instance started.
Total System Global
Area? 521936896 bytes
Fixed
Size??? ??? 2254824 bytes
Variable
Size???? ? 423626776 bytes
Database Buffers
92274688 bytes
Redo
Buffers????? ??? 3780608 bytes
Database mounted.
Database opened.
2.16執(zhí)行catclust.sql腳本來創(chuàng)建相關(guān)視圖
執(zhí)行$ORACLE_HOME/rdbms/admin/catclust.sql腳本，創(chuàng)建cluster database的相關(guān)視圖。
SQL>@$ORACLE_HOME/rdbms/admin/catclust.sql
2.17重建Temp表空間
因為在restore的時候不會對temp表空間進(jìn)行restore。所以等restore之后，我們需要手工創(chuàng)建temp表空間。
不過在11g的ASM，查到了這個文件。
[grid@rac1 ~]$ asmcmd
lsof |grep temp
neal
neal1
+data/neal/tempfile/temp.274.917077561
orcl
orcl1
+data/orcl/tempfile/temp.263.917074137
2.18添加集群的監(jiān)聽
用grid用戶連接，在其中一個節(jié)點上用netca配置一下。
2.19驗證
[root@rac1 ~]# crsctl
stat res -t
--------------------------------------------------------------------------------
NAME
TARGET? STATE
SERVER
STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.FRA.dg
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.LISTENER.lsnr
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.OCRVOTING.dg
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.asm
ONLINE? ONLINE
rac1
Started
ONLINE? ONLINE?????? rac2
Started
ora.gsd
OFFLINE OFFLINE
rac1
OFFLINE OFFLINE
rac2
ora.net1.network
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
ora.ons
ONLINE? ONLINE
rac1
ONLINE? ONLINE
rac2
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1??????? ONLINE
ONLINE
rac1
ora.cvu
1??????? ONLINE
ONLINE
rac1
ora.neal.db
1??????? ONLINE
ONLINE
rac1
Open
2??????? ONLINE
ONLINE
rac2
Open
ora.oc4j
1??????? ONLINE
ONLINE
rac1
ora.orcl.db
1??????? ONLINE
ONLINE
rac1
Open
2??????? ONLINE
ONLINE
rac2
Open
ora.rac1.vip
1??????? ONLINE
ONLINE
rac1
ora.rac2.vip
1??????? ONLINE
ONLINE
rac2
ora.scan1.vip
1??????? ONLINE
ONLINE?????? rac1
總結(jié)
以上是生活随笔為你收集整理的linux dump命令 异机,Oracle 11.2.0.4 从单实例，使用RMAN 异机恢复到RAC的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。
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