6.Netbackup-Oracle数据库恢复演练报告(下)

1.1 Oracle数据库恢复

1 安装新的客户端
2 新建异机恢复文件
3 新建数据库实例
4 建立spfile文件
5 建立数据文件夹
6 启动数据库到nomount状态
7 列出备份信息
8 还原controlfile，并mount数据库
9 查找数据文件信息
10 数据文件恢复
11 归档日志恢复
12 联机日志路径修改
13 Recover并打开数据库
14 验证数据库

1.1.1 安装新的客户端

在备份服务器上添加hosts信息

10.110.10.74 backup-test

在客户端添加hosts信息

10.12.69.111 nbu-b

安装客户端

1.1.2 新建异机恢复文件

在备份服务器上建立支持异机恢复要求的文件。

备份服务器建立No.Restrictions空文件

UNIX platform: /usr/openv/netbackup/db/altnames/No.Restrictions

1.1.3 新建数据库实例

对于需要恢复的机器，需要新建立一个数据库实例进行数据恢复。

本次恢复针到的实例为test

1.1.4 建立spfile文件

原spfile导出文件为：

[root@backup-test testtest]# cat inittest1.ora.old

test2.__db_cache_size=7918845952

test1.__db_cache_size=6643777536

test2.__java_pool_size=134217728

test1.__java_pool_size=134217728

test2.__large_pool_size=167772160

test1.__large_pool_size=167772160

test1.__oracle_base='/oracle/'#ORACLE_BASE set from environment

test2.__oracle_base='/oracle/'#ORACLE_BASE set from environment

test2.__pga_aggregate_target=6442450944

test1.__pga_aggregate_target=5637144576

test2.__sga_target=9663676416

test1.__sga_target=10468982784

test2.__shared_io_pool_size=0

test1.__shared_io_pool_size=0

test2.__shared_pool_size=1342177280

test1.__shared_pool_size=3422552064

test2.__streams_pool_size=0

test1.__streams_pool_size=0

*.audit_file_dest='/oracle/admin/test/adump'

*.audit_trail='db'

*.cluster_database=true

*.compatible='11.2.0.4.0'

*.control_files='+DATA_DG/test/controlfile/current.256.834077963','+DATA_DG/test/controlfile/current.275.834330051','+FLASH_DG/test/controlfile/current.278.834330403'

*.db_block_size=8192

*.db_create_file_dest='+DATA_DG'

*.db_domain=''

*.db_name='test'

*.diagnostic_dest='/oracle'

*.dispatchers='(PROTOCOL=TCP) (SERVICE=testXDB)'

test1.instance_number=1

test2.instance_number=2

*.lock_sga=FALSE

*.log_archive_dest_1='LOCATION=+FLASH_DG'

*.log_archive_format='%t_%s_%r.dbf'

*.memory_max_target=16106127360

*.memory_target=16106127360

*.open_cursors=500

*.processes=1000

*.remote_listener='test-scan:1521'

*.remote_login_passwordfile='exclusive'

*.session_cached_cursors=100

*.sessions=1105

test2.thread=2

test1.thread=1

*.undo_retention=7200

test1.undo_tablespace='UNDOTBS1'

test2.undo_tablespace='UNDOTBS2'

由于需要恢复到单机，删除RAC相关信息。另外由于硬件资源的不同，删除需要恢复的资源配置。

新的配置文件为

[root@backup-test testtest]# cat inittest1.ora

*.__oracle_base='/oradata/testtest/'#ORACLE_BASE set from environment

*.__pga_aggregate_target=5637144576

*.__sga_target=10468982784

*.audit_file_dest='/oradata/testtest/adump'

*.audit_trail='db'

*.compatible='11.2.0.4.0'

*.control_files='/oradata/testtest/controlfile/current.256.834077963'

*.db_block_size=8192

*.db_create_file_dest='/oradata/testtest/'

*.db_domain=''

*.db_name='test'

*.diagnostic_dest='/oradata/testtest/'

*.dispatchers='(PROTOCOL=TCP) (SERVICE=testXDB)'

*.lock_sga=FALSE

*.log_archive_dest_1='LOCATION=/oradata/testtest/archive/'

*.log_archive_format='%t_%s_%r.dbf'

*.open_cursors=500

*.processes=1000

*.remote_login_passwordfile='exclusive'

*.session_cached_cursors=100

*.sessions=1105

*.undo_retention=7200

*.undo_tablespace='UNDOTBS1'

1.1.5 建立数据文件夹

根据spfile建立相关文件

[root@backup-test testtest]# ll -a

total 52

drwxrwxrwx 7 oracle oinstall 4096 Sep 25 16:26 .

drwxrwxr-x 29 oracle oinstall 12288 Sep 28 10:03 ..

drwxr-xr-x 2 oracle oinstall 4096 Sep 28 10:37 adump

drwxr-xr-x 2 oracle oinstall 4096 Sep 25 16:02 archive

drwxr-xr-x 2 oracle oinstall 4096 Sep 28 10:10 controlfile

drwxrwxr-x 3 oracle oinstall 4096 Sep 25 16:20 diag

-rwxrwxrwx 1 oracle oinstall 760 Sep 25 16:26 inittest1.ora

-rwxr-xr-x 1 oracle oinstall 1578 Sep 25 15:45 inittest1.ora.old

drwxrwxrwx 2 oracle oinstall 4096 Sep 25 12:04 testtest

-rwxrwxrwx 1 oracle oinstall 6520 Sep 25 14:44 utlpwdmg.sql

1.1.6 启动数据库到nomount状态

sqlplus /nolog

idle> conn / as sysdba

idle> startup nomount pfile='/oradata/testtest/inittest1.ora'

ORACLE instance started.

Total System Global Area 396726272 bytes

Fixed Size 2253504 bytes

Variable Size 318770496 bytes

Database Buffers 67108864 bytes

Redo Buffers 8593408 bytes

1.1.7 列出备份信息

在备份服务器上列出相关备份信息

bplist -C test-db01 -s 09/27/2015 -t 4 -R -b -l /

。。。。。。。

1.1.8 还原controlfile，并mount数据库

RMAN还原

RMAN>

RMAN>connect target /

RMAN> run{

2> allocate channel ch0 type 'sbt_tape';

3> send 'NB_ORA_CLIENT=test-db01';

4> send 'nb_ora_serv=nbu-b';

5> restore controlfile from '/cntrl_3175_1_891580028';

6> release channel ch0;

7> }

using target database control file instead of recovery catalog

allocated channel: ch0

channel ch0: SID=578 device type=SBT_TAPE

channel ch0: Veritas NetBackup for Oracle - Release 7.6 (2014102721)

sent command to channel: ch0

Starting restore at 2015-09-28 10:10:36

channel ch0: restoring control file

channel ch0: restore complete, elapsed time: 00:00:15

output file name=/oradata/testtest/controlfile/current.256.834077963

Finished restore at 2015-09-28 10:10:52

released channel: ch0

RMAN> alter database mount;

database mounted

1.1.9 查找数据文件信息

sqlplus /nolog

idle> conn / as sysdba

idle> select name from v$datafile;

NAME

----------------------------------------------------------------------------------------------------

+DATA_DG/test/datafile/system.259.834077963

+DATA_DG/test/datafile/sysaux.260.834077967

+DATA_DG/test/datafile/undotbs1.261.834077971

+DATA_DG/test/datafile/undotbs2.263.834077979

+DATA_DG/test/datafile/users.264.834077981

+DATA_DG/test/datafile/zhos_dataspace.268.889894605

+DATA_DG/test/datafile/zhos_dataspace.272.834956161

+DATA_DG/test/datafile/zhos_dataspace.271.834956199

+DATA_DG/test/datafile/spcred_dataspace.269.834956241

+DATA_DG/test/datafile/zhos_indexspace.273.834317857

+DATA_DG/test/datafile/audit_dataspace.280.846839715

11 rows selected.

idle> select member from v$logfile;

MEMBER

----------------------------------------------------------------------------------------------------

+DATA_DG/test/onlinelog/group_1.257.834077963

+DATA_DG/test/onlinelog/group_2.258.834077963

+DATA_DG/test/onlinelog/group_3.265.834080437

+DATA_DG/test/onlinelog/group_4.266.834080437

+DATA_DG/test/onlinelog/group_5.276.834332677

+DATA_DG/test/onlinelog/group_6.277.834332723

+DATA_DG/test/onlinelog/group_7.278.834332751

+DATA_DG/test/onlinelog/group_8.279.834332783

8 rows selected.

1.1.10 数据文件恢复

编辑还原脚本如下：

export ORACLE_SID=test

rman <<EOF

connect target /

run {

allocate channel ch0 type 'SBT_TAPE';

allocate channel ch1 type 'SBT_TAPE';

send 'nb_ora_serv=nbu-b';

send 'nb_ora_client=test-db01';

set newname for datafile '+DATA_DG/test/datafile/system.259.834077963' to '/oradata/testtest/system.259.834077963';

set newname for datafile '+DATA_DG/test/datafile/sysaux.260.834077967' to '/oradata/testtest/sysaux.260.834077967';

set newname for datafile '+DATA_DG/test/datafile/undotbs1.261.834077971' to '/oradata/testtest/undotbs1.261.834077971';

set newname for datafile '+DATA_DG/test/datafile/undotbs2.263.834077979' to '/oradata/testtest/undotbs2.263.834077979';

set newname for datafile '+DATA_DG/test/datafile/users.264.834077981' to '/oradata/testtest/users.264.834077981';

set newname for datafile '+DATA_DG/test/datafile/zhos_dataspace.268.889894605' to '/oradata/testtest/zhos_dataspace.268.889894605';

set newname for datafile '+DATA_DG/test/datafile/zhos_dataspace.272.834956161' to '/oradata/testtest/zhos_dataspace.272.834956161';

set newname for datafile '+DATA_DG/test/datafile/zhos_dataspace.271.834956199' to '/oradata/testtest/zhos_dataspace.271.834956199';

set newname for datafile '+DATA_DG/test/datafile/spcred_dataspace.269.834956241' to '/oradata/testtest/spcred_dataspace.269.834956241';

set newname for datafile '+DATA_DG/test/datafile/zhos_indexspace.273.834317857' to '/oradata/testtest/zhos_indexspace.273.834317857';

set newname for datafile '+DATA_DG/test/datafile/audit_dataspace.280.846839715' to '/oradata/testtest/audit_dataspace.280.846839715';

restore database;

switch datafile all;

release channel ch0;

release channel ch1;

}

exit

EOF

运行数据还原

恢复完成

1.1.11 归档日志恢复

idle> select THREAD#,SEQUENCE#,FIRST_TIME,COMPLETION_TIME from v$archived_log where COMPLETION_TIME>to_date('20150927 20:00:00','yyyymmdd hh24:mi:ss') and COMPLETION_TIME<to_date('20150928 6:00:00','yyyymmdd hh24:mi:ss') order by SEQUENCE#;

THREAD# SEQUENCE# FIRST_TIME COMPLETION_TIME

---------- ---------- ------------------- -------------------

1 27587 2015-09-27 19:59:31 2015-09-27 21:01:28

......

39 rows selected.

RMAN还原归档日志

节点1还原

RMAN> connect target /

connected to target database: test (DBID=825185095, not open)

RMAN> run{

set archivelog destination to '/oradata/testtest/archive';

2> 3> allocate channel ch0 type 'SBT_TAPE';

send 'NB_ORA_CLIENT=test-db01';

send 'nb_ora_serv=nbu-b';

restore archivelog sequence between 27587 and 27597 thread 1;

4> 5> 6> 7> release channel ch0;

8> }

executing command: SET ARCHIVELOG DESTINATION

......

released channel: ch0

节点2还原

RMAN> run{

set archivelog destination to '/oradata/testtest/archive';

2> 3> allocate channel ch0 type 'SBT_TAPE';

4> send 'NB_ORA_CLIENT=test-db01';

5> send 'nb_ora_serv=nbu-b';

6> restore archivelog sequence between 45287 and 45314 thread 2;

7> release channel ch0;

8> }

executing command: SET ARCHIVELOG DESTINATION

allocated channel: ch0

channel ch0: SID=673 device type=SBT_TAPE

channel ch0: Veritas NetBackup for Oracle - Release 7.6 (2014102721)

sent command to channel: ch0

Starting restore at 2015-09-28 14:14:04

channel ch0: starting archived log restore to user-specified destination

......

released channel: ch0

1.1.12 联机日志路径修改

Sqlplus 修改

idle>

alter database rename file '+DATA_DG/test/onlinelog/group_1.257.834077963' to'/oradata/testtest/group_1.257.834077963';

......

1.1.13 Recover并打开数据库

Sqlplus启动数据库

idle> recover database until cancel using backup controlfile;

ORA-00279: change 10315737932005 generated at 09/27/2015 22:03:45 needed for thread 1

ORA-00289: suggestion : /oradata/testtest/archive/1_27589_834077959.dbf

ORA-00280: change 10315737932005 for thread 1 is in sequence #27589

Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

AUTO

ORA-00308: cannot open archived log '/oradata/testtest/archive/1_27589_834077959.dbf'

ORA-27037: unable to obtain file status

Linux-x86_64 Error: 2: No such file or directory

Additional information: 3

..............

ORA-00308: cannot open archived log '/oradata/testtest/archive/2_45315_834077959.dbf'

ORA-27037: unable to obtain file status

Linux-x86_64 Error: 2: No such file or directory

Additional information: 3

idle>

idle> alter database open resetlogs;

Database altered.

1.1.14 验证数据库

idle> select open_mode from v$database;

OPEN_MODE

----------------------------------------

READ WRITE