一步一步实现oracle data guard。
Oracle data guard 的实施目标,将主机 guohuiorcl2(IP 192.168.31.128)上的oracle archivelog日志传输到 主机 guohuiorcl1(IP 192.168.31.129)上。
期间用到的主机如下
1、主机guohuilinuxas31
rman 备份管理服务器,在其上建立 rman catalog,对其他主机进行rman 备份与恢复。
操作系统环境 Linux ES3-U9
IP 192.168.31.130
Netmark 255.255.255.0
Getway 192.168.31.1
主机名 guohuilinuxas31
实例名 orcl
Oracle 版本:Oracle Database 10gEnterprise Edition Release 10.2.0.1.0
主机 guohuiorcl1
2、备用数据库
操作系统环境 Linux ES5.4
IP 192.168.31.129
Netmark 255.255.255.0
Getway 192.168.31.1
主机名 guohuiorcl1
实例名 orcl
Oracle 版本:Oracle Database 10gEnterprise Edition Release 10.2.0.1.0
主机 guohuiorcl2
3、主用数据库
操作系统环境 Linux ES5.4
IP 192.168.31.128
Netmark 255.255.255.0
Getway 192.168.31.1
主机名 guohuiorcl2
实例名 orcl
Oracle 版本:Oracle Database 10gEnterprise Edition Release 10.2.0.1.0
准备主用数据库的环境变量
主机 guohuiorcl2 oracle 用户环境
[oracle@guohuiorcl2 ~]$ cat .bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
TMP=/tmp;export TMP
TMPDIR=$TMP;export TMPDIR
ORACLE_BASE=/home/oracle/oracle;export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1;export ORACLE_HOME
ORACLE_SID=orcl;export ORACLE_SID
ORACLE_TERM=xterm;export ORACLE_TERM
PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin
export PATH=$PATH:/sbin
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;
export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;export CLASSPATH
if [$USER = "oracle"]; then
if [$SHELL = "bin/ksh"]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1;export ORACLE_HOME
#xhost local:oracle
第一步:检查主用数据库 guohuiorcl2 上的oracle 是否开启了archive 。
[oracle@guohuiorcl2 ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sat Apr 16 07:10:33 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connected.
SQL> select dbid,name,log_mode from v$database;
DBID NAME LOG_MODE
---------- --------- ------------
1265371036 ORCL NOARCHIVELOG
系统显示没有开启 archive log 功能。
开启 archive。
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 243269632 bytes
Fixed Size 1218748 bytes
Variable Size 62916420 bytes
Database Buffers 176160768 bytes
Redo Buffers 2973696 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 3
Next log sequence to archive 5
Current log sequence 5
设置 archvelog 的日志保存地址。
用oracle 用户执行
SQL> host mkdir –p /home/oracle/oracle/oradata/orcl/archive
SQL> alter database force logging;
Database altered.
SQL>
SQL> alter system set log_archive_dest_1=” /home/oracle/oracle/oradata/orcl/archive”;
System altered.
SQL> show parameter log_archive_format;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
log_archive_format string %t_%s_%r.dbf
执行archive log 日志切换。
SQL> alter system switch logfile;
System altered.
SQL> /
System altered.
SQL> /
System altered.
SQL> /
System altered.
SQL> /
System altered.
检查一下 archive log。
SQL> host ls /home/oracle/oracle/oradata/orcl/archive
1_5_737590303.dbf 1_6_737590303.dbf 1_7_737590303.dbf 1_8_737590303.dbf 1_9_737590303.dbf
可以看到 archivelog 已经生成在指定目录下。
在主机 guohuiorcl2上创建pfile文件。
SQL> create pfile from spfile;
File created.
查看该pfile 文件
[oracle@guohuiorcl2 dbs]$ cat initorcl.ora
orcl.__db_cache_size=176160768
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__shared_pool_size=54525952
orcl.__streams_pool_size=0
*.audit_file_dest='/home/oracle/oracle/admin/orcl/adump'
*.background_dump_dest='/home/oracle/oracle/admin/orcl/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/home/oracle/oracle/oradata/orcl/control01.ctl','/home/oracle/oracle/oradata/orcl/control02.ctl','/home/oracle/oracle/oradata/orcl/control03.ctl'
*.core_dump_dest='/home/oracle/oracle/admin/orcl/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='orcl'
*.db_recovery_file_dest='/home/oracle/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.job_queue_processes=10
*.log_archive_dest_1='location=/home/oracle/oracle/oradata/orcl/archive'
*.open_cursors=300
*.pga_aggregate_target=80740352
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=243269632
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/home/oracle/oracle/admin/orcl/udump'
修改 initorcl.ora 如下
[oracle@guohuiorcl2 dbs]$ cat initorcl.ora
orcl.__db_cache_size=176160768
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__shared_pool_size=54525952
orcl.__streams_pool_size=0
*.audit_file_dest='/home/oracle/oracle/admin/orcl/adump'
*.background_dump_dest='/home/oracle/oracle/admin/orcl/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/home/oracle/oracle/oradata/orcl/control01.ctl','/home/oracle/oracle/oradata/orcl/control02.ctl','/home/oracle/oracle/oradata/orcl/control03.ctl'
*.core_dump_dest='/home/oracle/oracle/admin/orcl/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='orcl'
*.db_recovery_file_dest='/home/oracle/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.dg_broker_start=TRUE
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.fal_client='orcl'
*.fal_server='orclsby1'
*.job_queue_processes=10
*.log_archive_dest_1='location=/home/oracle/oracle/oradata/orcl/archive'
*.log_archive_dest_2='service=orclsby1 LGWR'
*.open_cursors=300
*.pga_aggregate_target=80740352
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=243269632
*.standby_archive_dest='/home/oracle/oracle/oradata/orcl/archive'
*.standby_file_management='AUTO'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/home/oracle/oracle/admin/orcl/udump'
[oracle@guohuiorcl2 dbs]$
注意:
以下是增加的参数
*.dg_broker_start=TRUE
*.fal_client=' orcl'
*.fal_server='orclsby1'
*.log_archive_dest_2='SERVICE='orclsby1 LGWR'
*.standby_archive_dest='/home/oracle/oracle/oradata/orcl/archive'
*.standby_file_management='AUTO'
[oracle@guohuiorcl2 dbs]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sun Apr 17 23:02:02 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect / as sysdba
Connected.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> create spfile from pfile;
File created.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 243269632 bytes
Fixed Size 1218748 bytes
Variable Size 62916420 bytes
Database Buffers 176160768 bytes
Redo Buffers 2973696 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> alter database open;
Database altered.
在 主机 guohuilinuxas31 上建立rman 的恢复管理目录,准备把 guoorcl2 上的 orcl 数据库备份到 guohuilinuxas31 ,再恢复到 guoorcl1 上
在主机guohuilinuxas31上 登入oracle
[oracle@guohuilinuxas31 oracle]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Apr 19 14:06:12 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 285212672 bytes
Fixed Size 1218968 bytes
Variable Size 92276328 bytes
Database Buffers 184549376 bytes
Redo Buffers 7168000 bytes
Database mounted.
Database opened.
SQL> create tablespace cattbs datafile '/u01/app/oracle/oradata/orcl/cattbs01.dbf' size 200M extent management local autoallocate;
Tablespace created.
SQL> create user rman817 identified by rman temporary tablespace temp default tablespace cattbs quota unlimited on cattbs;
User created.
SQL> grant connect,recovery_catalog_owner to rman817;
Grant succeeded.
以上指令在rman主机guohuilinuxas31上创建了rman账户。
在主机guohuilinuxas31上添加主用数据库 guohuiorcl2上oracle的tns链接
[oracle@guohuilinuxas31 network]$ cat tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.2.0/db_1/network/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = guohuilinuxas31)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
ORCLA =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.128)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
[oracle@guohuilinuxas31 network]$
验证tns可达。
[oracle@guohuilinuxas31 network]$ tnsping orcla
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 28-APR-2011 23:16:24
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/u01/app/oracle/product/10.2.0/db_1/network/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.128)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (0 msec)
[oracle@guohuilinuxas31 network]$
在主机guohuilinuxas31上注册主机 guohuiorcl2的oracle为目标数据库
首先改掉主机guohuilinuxas31上 的 .bash_profile 的path变量参数,因为linux有自己的rman指令,会卡住oracle的rman,把oracle的 指令目录前置。
PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin;export PATH
改成
PATH=$ORACLE_HOME/bin:$PATH:$HOME/bin;export PATH
然后 [oracle@guohuilinuxas31 oracle]$ source .bash_profile
让修改的参数生效。
验证一下:
oracle@guohuilinuxas31 oracle]$ rman
Recovery Manager: Release 10.2.0.1.0 - Production on Thu Apr 28 23:47:01 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN> connect catalog rman817/rman@orcl
connected to recovery catalog database
RMAN> create catalog tablespace cattbs;
recovery catalog created
退出rman,然后再次进入
[oracle@guohuilinuxas31 oracle]$ rman
Recovery Manager: Release 10.2.0.1.0 - Production on Thu Apr 28 23:58:10 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN> connect target sys/kelantas@orcla
connected to target database: ORCL (DBID=1265371036)
RMAN> connect catalog rman817/rman@orcl
connected to recovery catalog database
RMAN> register database
2> ;
database registered in recovery catalog
starting full resync of recovery catalog
full resync complete
RMAN> list incarnation;
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
1 8 ORCL 1265371036 PARENT 1 30-JUN-05
1 2 ORCL 1265371036 CURRENT 446075 12-DEC-10
RMAN> backup database format='/home/oracle/%U_%s.bak';
Starting backup at 29-APR-11
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=143 devtype=DISK
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/home/oracle/oracle/oradata/orcl/system01.dbf
input datafile fno=00003 name=/home/oracle/oracle/oradata/orcl/sysaux01.dbf
input datafile fno=00005 name=/home/oracle/oracle/oradata/orcl/example01.dbf
input datafile fno=00002 name=/home/oracle/oracle/oradata/orcl/undotbs01.dbf
input datafile fno=00004 name=/home/oracle/oracle/oradata/orcl/users01.dbf
channel ORA_DISK_1: starting piece 1 at 29-APR-11
channel ORA_DISK_1: finished piece 1 at 29-APR-11
piece handle=/home/oracle/01mavib9_1_1_1.bak tag=TAG20110429T065744 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:03:29
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 29-APR-11
channel ORA_DISK_1: finished piece 1 at 29-APR-11
piece handle=/home/oracle/02mavihq_1_1_2.bak tag=TAG20110429T065744 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:05
Finished backup at 29-APR-11
RMAN> Backup filesperset 10 ArchiveLog all format='/home/oracle/%U_%s.bak';
Starting backup at 29-APR-11
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=5 recid=1 stamp=748598287
input archive log thread=1 sequence=6 recid=2 stamp=748598288
input archive log thread=1 sequence=7 recid=3 stamp=748598294
input archive log thread=1 sequence=8 recid=4 stamp=748598296
input archive log thread=1 sequence=9 recid=5 stamp=748598297
input archive log thread=1 sequence=10 recid=6 stamp=748739337
input archive log thread=1 sequence=11 recid=7 stamp=749714659
input archive log thread=1 sequence=12 recid=8 stamp=749718437
channel ORA_DISK_1: starting piece 1 at 29-APR-11
channel ORA_DISK_1: finished piece 1 at 29-APR-11
piece handle=/home/oracle/03mavit7_1_1_3.bak tag=TAG20110429T070718 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:08
Finished backup at 29-APR-11
将备份集对应的文件从 主数据库guohuiorcl2 传到备用数据库guohuiorcl1。
[oracle@guohuiorcl2 ~]$ ftp guohuiorcl1
Connected to guohuiorcl1.
220 (vsFTPd 2.0.5)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (guohuiorcl1:oracle): oracle
331 Please specify the password.
Password:
230 Login successful.
ftp> pwd
257 "/home/oracle"
ftp> bin
200 Switching to Binary mode.
ftp> prompt off
Interactive mode off.
ftp> mput *.bak
local: 01mavib9_1_1_1.bak remote: 01mavib9_1_1_1.bak
227 Entering Passive Mode (192,168,31,129,203,54)
150 Ok to send data.
226 File receive OK.
637140992 bytes sent in 2.5e+02 seconds (2.5e+03 Kbytes/s)
local: 02mavihq_1_1_2.bak remote: 02mavihq_1_1_2.bak
227 Entering Passive Mode (192,168,31,129,145,184)
150 Ok to send data.
226 File receive OK.
7143424 bytes sent in 3.8 seconds (1.8e+03 Kbytes/s)
local: 03mavit7_1_1_3.bak remote: 03mavit7_1_1_3.bak
227 Entering Passive Mode (192,168,31,129,205,39)
150 Ok to send data.
226 File receive OK.
34118144 bytes sent in 5 seconds (6.7e+03 Kbytes/s)
ftp>
在备用数据库上guohuiorcl1上检查传输过来的文件集对应的文件:
[oracle@guohuiorcl1 ~]$ ls -la *.bak
-rw-r--r-- 1 oracle oinstall 637140992 04-30 09:21 01mavib9_1_1_1.bak
-rw-r--r-- 1 oracle oinstall 7143424 04-30 09:21 02mavihq_1_1_2.bak
-rw-r--r-- 1 oracle oinstall 34118144 04-30 09:21 03mavit7_1_1_3.bak
要求安装备用数据库的oracle 的主机 guohuiorcl1的主机分区环境和oracle相关的目录结构和主机 guohuiorcl2的完全相同。其实这个不是强制要求,只是这样做比较省事。否则,需要改pfile.ora 文件,把恢复主机所在目录结构改到 pfile.ora 里面。
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
以上的是主用数据库 guohuiorcl2 上的 主机分区结构。
$ORACLE_BASE=/home/oracle/oracle
数据文件、日志文件、控制文件的目录
$ORACLE_BASE/oradata/orcl
归档日志文件目录
$ORACLE_BASE/oradata/orcl/archive
[oracle@guohuiorcl2 admin]$ ls $ORACLE_BASE/admin/orcl
adump bdump cdump dpdump pfile udump
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
##############################################################################
以上的是主机 guohuiorcl1 上的 主机分区结构。
$ORACLE_BASE=/home/oracle/oracle
数据文件、日志文件、控制文件的目录
$ORACLE_BASE/oradata/orcl
归档日志文件目录(补建一下)
$ORACLE_BASE/oradata/orcl/archive
[oracle@guohuiorcl2 admin]$ ls $ORACLE_BASE/admin/orcl
adump bdump cdump dpdump pfile udump
##############################################################################
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
修改备用数据库guohuiorcl1的 环境变量与主用数据库 guohuiorcl2的完全相同。这样搞比较省事,真实的生产环境如果相同,两个库更容易管理。
主用数据库 guohuiorcl2的环境如下:
[oracle@guohuiorcl2 ~]$ cat .bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
#PATH=$PATH:$HOME/bin
#export PATH
TMP=/tmp;export TMP
TMPDIR=$TMP;export TMPDIR
ORACLE_BASE=/home/oracle/oracle;export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1;export ORACLE_HOME
ORACLE_SID=orcl;export ORACLE_SID
ORACLE_TERM=xterm;export ORACLE_TERM
PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin:/sbin:/usr/local/bin:/usr/local/sbin;export PATH
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;export CLASSPATH
if [$USER = "oracle"]; then
if [$SHELL = "bin/ksh"]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
#ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1;export ORACLE_HOME
#xhost local:oracle
[oracle@guohuiorcl2 ~]$
备用数据库 guohuiorcl1的oracle用户的环境如下
[oracle@guohuiorcl1 ~]$ cat .bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
#PATH=$PATH:$HOME/bin
#export PATH
TMP=/tmp;export TMP
TMPDIR=$TMP;export TMPDIR
ORACLE_BASE=/home/oracle/oracle;export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1;export ORACLE_HOME
ORACLE_SID=orcl;export ORACLE_SID
ORACLE_TERM=xterm;export ORACLE_TERM
PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin
export PATH=$PATH:/sbin
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;
export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;export CLASSPATH
if [$USER = "oracle"]; then
if [$SHELL = "bin/ksh"]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
#ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1;export ORACLE_HOME
#xhost local:oracle
主用数据库 guohuiorcl2 与 备用数据库 guohuiorcl1 的关于oracle的环境是一样的。其他的环境变量,稍有不同,但不影响我们做data guard。
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
创建主机guohuiorcl1备用数据库的参数文件
因为guoorcl1上已经安装过一个可以启动的orcl实例,所有有这个pfile.ora文件,如果guoorcl1上只是安装了软件,就需要重guoorcl2上把 pfile.ora 或者 spfile.ora 文件给传过了,而且还得改这个文件。
[oracle@guohuiorcl1 dbs]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sun May 1 08:25:56 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connected to an idle instance.
SQL> create pfile from spfile;
File created.
编辑 pfile initorcl.ora
得到如下结果
[oracle@guohuiorcl1 dbs]$ cat initorcl.ora
orcl.__db_cache_size=163577856
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__shared_pool_size=67108864
orcl.__streams_pool_size=0
*.audit_file_dest='/home/oracle/oracle/admin/orcl/adump'
*.background_dump_dest='/home/oracle/oracle/admin/orcl/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/home/oracle/oracle/oradata/orcl/control01.ctl','/home/oracle/oracle/oradata/orcl/control02.ctl','/home/oracle/oracle/oradata/orcl/control03.ctl'
*.core_dump_dest='/home/oracle/oracle/admin/orcl/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='orcl'
*.db_recovery_file_dest='/home/oracle/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.dg_broker_start=TRUE
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.fal_client='orclsby1'
*.fal_server='orcl'
*.job_queue_processes=10
*.log_archive_dest_1='location=/home/oracle/oracle/oradata/orcl/archive'
*.log_archive_dest_2='SERVICE=orcl LGWR'
*.open_cursors=300
*.pga_aggregate_target=80740352
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=243269632
*.standby_archive_dest='/home/oracle/oracle/oradata/orcl/archive'
*.standby_file_management='AUTO'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/home/oracle/oracle/admin/orcl/udump'
[oracle@guohuiorcl1 dbs]$
注意:
以下是增加的参数
*.dg_broker_start=TRUE
*.fal_client='orclsby1'
*.fal_server='orcl'
*.log_archive_dest_1='location=/home/oracle/oracle/oradata/orcl/archive'
*.log_archive_dest_2='SERVICE=orcl LGWR'
*.standby_archive_dest='/home/oracle/oracle/oradata/orcl/archive'
*.standby_file_management='AUTO'
把口令文件从主数据库主机 guohuiorcl2 ftp 到备用数据库主机 guohuiorcl1
ftp> open guohuiorcl1
Connected to guohuiorcl1.
220 (vsFTPd 2.0.5)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (guohuiorcl1:oracle): oracle
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> cd /home/oracle/oracle/product/10.2.0/db_1/dbs
250 Directory successfully changed.
ftp> lcd /home/oracle/oracle/product/10.2.0/db_1/dbs
Local directory now /home/oracle/oracle/product/10.2.0/db_1/dbs
ftp> bin
200 Switching to Binary mode.
ftp> put orapworcl
local: orapworcl remote: orapworcl
200 PORT command successful. Consider using PASV.
150 Ok to send data.
226 File receive OK.
1536 bytes sent in 0.021 seconds (70 Kbytes/s)
配置主服务器主机 guohuiorcl2的网络
[oracle@guohuiorcl2 admin]$ cat listener.ora
# listener.ora Network Configuration File: /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /home/oracle/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = guohuiorcl2)(PORT = 1521))
)
)
# 不要把 guohuiorcl2 改成IP,否则会无法连接到
[oracle@guohuiorcl2 admin]$ cat tnsnames.ora
# tnsnames.ora Network Configuration File: /home/oracle/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
#注意,这个参数需要和 pfile.ora 参数里面的*.fal_client 对应
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.128)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
GUOORCL1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
#注意,这个参数需要和 pfile.ora 参数里面的*.fal_server 对应
ORCLSBY1=
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
配置备用服务器主机 guohuiorcl1的网络
[oracle@guohuiorcl1 admin]$ cat listener.ora
# listener.ora Network Configuration File: /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /home/oracle/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = guohuiorcl1)(PORT = 1521))
)
)
#不要把guohuiorcl1改成ip。
[oracle@guohuiorcl2 admin]$ cat tnsnames.ora
# tnsnames.ora Network Configuration File: /home/oracle/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.128)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
GUOORCL1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
ORCLSBY1=
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
在主用机 guohuiorcl2上启动监听
[oracle@guohuiorcl1 admin]$ lsnrctl start
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 07:29:17
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting /home/oracle/oracle/product/10.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
Log messages written to /home/oracle/oracle/product/10.2.0/db_1/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.31.129)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 01-MAY-2011 07:29:18
Uptime 0 days 0 hr. 0 min. 1 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File /home/oracle/oracle/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.31.129)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
在备用机 guohuiorcl1上启动监听
[oracle@guohuiorcl2 admin]$ lsnrctl start
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 07:29:38
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting /home/oracle/oracle/product/10.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
Log messages written to /home/oracle/oracle/product/10.2.0/db_1/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.31.128)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 01-MAY-2011 07:29:39
Uptime 0 days 0 hr. 0 min. 1 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File /home/oracle/oracle/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.31.128)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
在主用机 guohuiorcl2上测试tns
[oracle@guohuiorcl1 admin]$ tnsping orcl
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 07:30:47
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/home/oracle/oracle/product/10.2.0/db_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.128)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (30 msec)
在备用机 guohuiorcl2上测试tns
[oracle@guohuiorcl1 admin]$ tnsping orclsby1
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 07:30:55
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/home/oracle/oracle/product/10.2.0/db_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (10 msec)
在备用机 guohuiorcl1上测试tns
[oracle@guohuiorcl2 admin]$ tnsping orcl
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 07:32:05
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/home/oracle/oracle/product/10.2.0/db_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.128)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (20 msec)
主用机 guohuiorcl2上测试tns
[oracle@guohuiorcl2 admin]$ tnsping orclsby1
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 07:32:19
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/home/oracle/oracle/product/10.2.0/db_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (20 msec)
在主数据库 guohuiorcl2 上创建备用服务器控制文件
[oracle@guohuiorcl2 admin]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sun May 1 07:39:56 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 243269632 bytes
Fixed Size 1218748 bytes
Variable Size 67110724 bytes
Database Buffers 171966464 bytes
Redo Buffers 2973696 bytes
Database mounted.
Database opened.
SQL> alter database create standby controlfile as '/home/oracle/standby.ctl';
Database altered.
将 standby.ctl 由guohuiorcl2传输到 guohuiorcl1 上。
[oracle@guohuiorcl2 ~]$ ftp 192.168.31.129
Connected to 192.168.31.129.
220 (vsFTPd 2.0.5)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (192.168.31.129:oracle): oracle
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> bin
200 Switching to Binary mode.
ftp> put standby.ctl
local: standby.ctl remote: standby.ctl
227 Entering Passive Mode (192,168,31,129,117,119)
150 Ok to send data.
226 File receive OK.
7061504 bytes sent in 0.28 seconds (2.4e+04 Kbytes/s)
ftp> ls
227 Entering Passive Mode (192,168,31,129,88,118)
150 Here comes the directory listing.
-rw-r--r-- 1 501 501 637140992 Apr 30 01:21 01mavib9_1_1_1.bak
-rw-r--r-- 1 501 501 7143424 Apr 30 01:21 02mavihq_1_1_2.bak
-rw-r--r-- 1 501 501 34118144 Apr 30 01:21 03mavit7_1_1_3.bak
drwxrwx--- 7 501 501 4096 Dec 12 14:10 oracle
-rw-r--r-- 1 501 501 7061504 May 01 00:00 standby.ctl
-rwxr-xr-x 1 501 501 72 Dec 12 15:48 startora.sh
-rwxr-xr-x 1 501 501 76 Dec 12 15:46 stopora.sh
226 Directory send OK.
在备用机 guohuiorcl1 上查证一下
[oracle@guohuiorcl1 ~]$ ls –la
drwx------ 9 oracle oinstall 4096 05-01 08:00 .
drwxr-xr-x 5 root root 4096 12-12 11:40 ..
-rw-r--r-- 1 oracle oinstall 637140992 04-30 09:21 01mavib9_1_1_1.bak
-rw-r--r-- 1 oracle oinstall 7143424 04-30 09:21 02mavihq_1_1_2.bak
-rw-r--r-- 1 oracle oinstall 34118144 04-30 09:21 03mavit7_1_1_3.bak
-rw------- 1 oracle oinstall 4009 04-30 10:40 .bash_history
-rw-r--r-- 1 oracle oinstall 33 12-12 11:27 .bash_logout
-rw-r--r-- 1 oracle oinstall 864 04-30 09:34 .bash_profile
-rw-r--r-- 1 oracle oinstall 860 12-12 22:44 .bash_profile~
-rw-r--r-- 1 oracle oinstall 124 12-12 11:27 .bashrc
-rw-r--r-- 1 oracle oinstall 515 12-12 11:27 .emacs
drwx------ 3 oracle oinstall 4096 12-12 22:42 .gconf
drwx------ 2 oracle oinstall 4096 12-12 22:44 .gconfd
drwx------ 3 oracle oinstall 4096 12-12 22:44 .gnome2
drwx------ 2 oracle oinstall 4096 12-12 11:57 .gnome2_private
drwxr-xr-x 3 oracle oinstall 4096 12-12 11:27 .kde
drwxr-xr-x 4 oracle oinstall 4096 12-12 11:27 .mozilla
drwxrwx--- 7 oracle oinstall 4096 12-12 22:10 oracle
-rw-r--r-- 1 oracle oinstall 775 12-12 22:44 .recently-used.xbel
-rw-r--r-- 1 oracle oinstall 7061504 05-01 08:00 standby.ctl
-rwxr-xr-x 1 oracle oinstall 72 12-12 23:48 startora.sh
-rwxr-xr-x 1 oracle oinstall 76 12-12 23:46 stopora.sh
-rw------- 1 oracle oinstall 6477 05-01 07:22 .viminfo
-rw-r--r-- 1 oracle oinstall 658 12-12 11:27 .zshrc
把备用机guoorcl1老的文件备份一下
[oracle@guohuiorcl1 ~]$ cd $ORACLE_BASE/
[oracle@guohuiorcl1 oracle]$ ls
admin flash_recovery_area oradata oraInventory product
[oracle@guohuiorcl1 oracle]$ tar –cvfz oradata.tar.20110430.gz oradata
用guoorcl2上新生成的控制文件覆盖guoorcl1的控制文件
[oracle@guohuiorcl1 oracle]$cd $HOME
[oracle@guohuiorcl1 ~]$ cp standby.ctl /home/oracle/oracle/oradata/orcl/control01.ctl
[oracle@guohuiorcl1 ~]$ cp standby.ctl /home/oracle/oracle/oradata/orcl/control02.ctl
[oracle@guohuiorcl1 ~]$ cp standby.ctl /home/oracle/oracle/oradata/orcl/control03.ctl
启动备用数据库guohuiorcl1到mount模式下
[oracle@guohuiorcl1 dbs]$ lsnrctl start
[oracle@guohuiorcl1 dbs]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sun May 1 09:20:21 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> create spfile from pfile;
SP2-0640: Not connected
SQL> connect /as sysdba
Connected to an idle instance.
SQL> create spfile from pfile;
File created.
SQL> startup mount
ORACLE instance started.
Total System Global Area 243269632 bytes
Fixed Size 1218748 bytes
Variable Size 75499332 bytes
Database Buffers 163577856 bytes
Redo Buffers 2973696 bytes
Database mounted.
SQL>
在rman数据库上加上guohuiorcl1 的tns地址
Tnsnames.ora 中添加
ORCLB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
Rman服务器上验证地址可达。
[oracle@guohuilinuxas31 network]$ tnsping ORCLB
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 01-MAY-2011 02:34:26
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/u01/app/oracle/product/10.2.0/db_1/network/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.129)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (0 msec)
恢复 备用数据库guohuiorcl1
[oracle@guohuilinuxas31 network]$ rman
Recovery Manager: Release 10.2.0.1.0 - Production on Sun May 1 02:56:43 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN> connect target sys/kelantas@orclb
connected to target database: ORCL (DBID=1265371036, not open)
RMAN> connect catalog rman817/rman@orcl
connected to recovery catalog database
RMAN> restore database;
Starting restore at 01-MAY-11
Starting implicit crosscheck backup at 01-MAY-11
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=151 devtype=DISK
Crosschecked 3 objects
Finished implicit crosscheck backup at 01-MAY-11
Starting implicit crosscheck copy at 01-MAY-11
using channel ORA_DISK_1
Finished implicit crosscheck copy at 01-MAY-11
searching for all files in the recovery area
cataloging files...
no files cataloged
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /home/oracle/oracle/oradata/orcl/system01.dbf
restoring datafile 00002 to /home/oracle/oracle/oradata/orcl/undotbs01.dbf
restoring datafile 00003 to /home/oracle/oracle/oradata/orcl/sysaux01.dbf
restoring datafile 00004 to /home/oracle/oracle/oradata/orcl/users01.dbf
restoring datafile 00005 to /home/oracle/oracle/oradata/orcl/example01.dbf
channel ORA_DISK_1: reading from backup piece /home/oracle/01mavib9_1_1_1.bak
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/01mavib9_1_1_1.bak tag=TAG20110429T065744
channel ORA_DISK_1: restore complete, elapsed time: 00:01:05
Finished restore at 01-MAY-11
RMAN> restore archivelog all;
Starting restore at 01-MAY-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log restore to default destination
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=5
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=6
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=7
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=8
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=9
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=10
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=11
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=12
channel ORA_DISK_1: reading from backup piece /home/oracle/03mavit7_1_1_3.bak
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/03mavit7_1_1_3.bak tag=TAG20110429T070718
channel ORA_DISK_1: restore complete, elapsed time: 00:00:28
Finished restore at 01-MAY-11
RMAN> recover database;
Starting recover at 01-MAY-11
using channel ORA_DISK_1
starting media recovery
archive log thread 1 sequence 12 is already on disk as file /home/oracle/oracle/oradata/orcl/archive/1_12_737590303.dbf
archive log filename=/home/oracle/oracle/oradata/orcl/archive/1_12_737590303.dbf thread=1 sequence=12
unable to find archive log
archive log thread=1 sequence=13
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 05/01/2011 03:06:06
RMAN-06054: media recovery requesting unknown log: thread 1 seq 13 lowscn 535329
备用数据库进入到后台管理恢复状态
[oracle@guohuiorcl1 admin]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sun May 1 10:02:51 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connected.
SQL> alter database recover managed standby database disconnect from session;
Database altered.
SQL>
采用Lgwr进程传递联日志机的最大性能模式
1. 在备用数据库上创建备用日志
(
alter database recover managed standby database cancel;
alter database add standby LOGFILE GROUP 5 ('/home/oracle/oracle/oradata/orcl/stdy_redo05.log') size 10m;
alter database add standby LOGFILE GROUP 6 ('/home/oracle/oracle/oradata/orcl/stdy_redo06.log') size 10m;
alter database add standby LOGFILE GROUP 7 ('/home/oracle/oracle/oradata/orcl/stdy_redo07.log') size 10m;
alter database add standby LOGFILE GROUP 8 ('/home/oracle/oracle/oradata/orcl/stdy_redo08.log') size 10m;
alter database recover managed standby database disconnect from session;
)
SQL> alter database recover managed standby database cancel;
Database altered.
SQL> alter database add standby LOGFILE GROUP 5 ('/home/oracle/oracle/oradata/orcl/stdy_redo05.log') size 10m;
Database altered.
SQL> alter database add standby LOGFILE GROUP 6 ('/home/oracle/oracle/oradata/orcl/stdy_redo06.log') size 10m;
Database altered.
SQL> alter database add standby LOGFILE GROUP 7 ('/home/oracle/oracle/oradata/orcl/stdy_redo07.log') size 10m;
Database altered.
SQL> alter database add standby LOGFILE GROUP 8 ('/home/oracle/oracle/oradata/orcl/stdy_redo08.log') size 10m;
Database altered.
SQL> alter database recover managed standby database disconnect from session;
Database altered.
2. 修改主库的归档路径
alter system set LOG_ARCHIVE_DEST_2='SERVICE=orclsby1 LGWR' scope=both;
另外,如果考虑到以后该库可能被切换到备用数据库,也可以创建同样的备用日志
组:
alter database add standby LOGFILE GROUP 5 ('/home/oracle/oracle/oradata/orcl/stdy_redo05.log') size 10m;
alter database add standby LOGFILE GROUP 6 ('/home/oracle/oracle/oradata/orcl/stdy_redo06.log') size 10m;
alter database add standby LOGFILE GROUP 7 ('/home/oracle/oracle/oradata/orcl/stdy_redo07.log') size 10m;
alter database add standby LOGFILE GROUP 8 ('/home/oracle/oracle/oradata/orcl/stdy_redo08.log') size 10m;
[oracle@guohuiorcl2 ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Sun May 1 10:23:24 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 243269632 bytes
Fixed Size 1218748 bytes
Variable Size 62916420 bytes
Database Buffers 176160768 bytes
Redo Buffers 2973696 bytes
Database mounted.
Database opened.
SQL> alter system set log_archive_dest_2='service=orclsby1 LGWR' scope=both;
System altered.
SQL> alter database add standby LOGFILE GROUP 5 ('/home/oracle/oracle/oradata/orcl/stdy_redo05.log') size 10m;
Database altered.
SQL> alter database add standby LOGFILE GROUP 6 ('/home/oracle/oracle/oradata/orcl/stdy_redo06.log') size 10m;
Database altered.
SQL> alter database add standby LOGFILE GROUP 7 ('/home/oracle/oracle/oradata/orcl/stdy_redo07.log') size 10m;
Database altered.
SQL> alter database add standby LOGFILE GROUP 8 ('/home/oracle/oracle/oradata/orcl/stdy_redo08.log') size 10m;
Database altered.
SQL>
四、验证备用服务器是否工作
在备库中查看日志
SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME, APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
在主库中执行
alter system switch logfile;
在备库中查看日志是否被传送过来
SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME, APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
备用数据库查询
SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME, APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# FIRST_TIM NEXT_TIME APP
---------- --------- --------- ---
5 15-APR-11 16-APR-11 YES
6 16-APR-11 16-APR-11 YES
7 16-APR-11 16-APR-11 YES
8 16-APR-11 16-APR-11 YES
9 16-APR-11 16-APR-11 YES
10 16-APR-11 17-APR-11 YES
11 17-APR-11 29-APR-11 YES
12 29-APR-11 29-APR-11 YES
13 29-APR-11 01-MAY-11 YES
14 01-MAY-11 01-MAY-11 YES
10 rows selected.
主用数据库执行
alter system switch logfile;
在备库中查看日志是否被传送过来
SQL> alter system switch logfile;
System altered.
执行时间明显变长,因为要传输日志。
备用数据库查询
SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME, APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# FIRST_TIM NEXT_TIME APP
---------- --------- --------- ---
5 15-APR-11 16-APR-11 YES
6 16-APR-11 16-APR-11 YES
7 16-APR-11 16-APR-11 YES
8 16-APR-11 16-APR-11 YES
9 16-APR-11 16-APR-11 YES
10 16-APR-11 17-APR-11 YES
11 17-APR-11 29-APR-11 YES
12 29-APR-11 29-APR-11 YES
13 29-APR-11 01-MAY-11 YES
14 01-MAY-11 01-MAY-11 YES
15 01-MAY-11 01-MAY-11 YES
11 rows selected.
可以看到,日志已从guohuiorcl2传输到guohuiorcl1.至此,oracle 的 data guard 配置完毕。