Home » RDBMS Server » Backup & Recovery » RMAN restore validate
| RMAN restore validate [message #305507] |
Tue, 11 March 2008 01:56  |
coolbalaga
Messages: 24
Registered: September 2006
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Junior Member |
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Hello,
I am using an rman restore database validate. Wanted to know how the validation is done by the oracle.
Does it restore to some location and verify it ? or what it does ?
Thanks in advance.
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| Re: RMAN restore validate [message #305512 is a reply to message #305507] |
Tue, 11 March 2008 02:13  |
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Michel Cadot
Messages: 68716
Registered: March 2007
Location: Saint-Maur, France, https...
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Senior Member
Account Moderator |
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From doc Database Backup and Recovery Reference, RESTORE command:
| Quote: | RESTORE... VALIDATE causes RMAN to select existing backups that it would use to perform a RESTORE operation, and scan them all to ensure that they are present and free of corruption.
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| Quote: | VALIDATE: Lets RMAN decide which backup sets, datafile copies, and archived logs need to be restored, and then scans them to verify their contents. No files are restored. Use VALIDATE to verify that the backups required to restore the specified files are intact and usable.
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Regards
Michel
[Updated on: Tue, 11 March 2008 02:15] Report message to a moderator |
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| Re: RMAN restore validate [message #305753 is a reply to message #305512] |
Tue, 11 March 2008 21:09 |
trantuananh24hg
Messages: 744
Registered: January 2007
Location: Ha Noi, Viet Nam
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Senior Member |
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One question, Michel..
What is the kind of archive logfile which the RMAN looks for if backup plus archivelog? The archive logfile in archive_destintion folder or the archive logfile within backup pieces? And can I delete/remove all of archive logfiles in archive folder after RMAN backup full plus archive logfile?
RMAN>run{
backup database plus archivelog;
delete noprompt obsolete;
}
Thank you for your clarification!
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| Re: RMAN restore validate [message #305835 is a reply to message #305799] |
Wed, 12 March 2008 03:00 |
trantuananh24hg
Messages: 744
Registered: January 2007
Location: Ha Noi, Viet Nam
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Senior Member |
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Thank you for your reply, Michel!
I am sorry for my obscure question. I meant that
1/ When I backup full with..
RMAN> run{
backup database plus archivelog;
}
It means that the RMAN would backup full plus all of available archive log files. However, when the DB crashs (assume that but I hope it never happen), I must use RMAN to restore and recovery DB. And, with the backup full at 10/02/2008, the DB crashs at 11/02/2008, what will happend if I delete all of archive log files at 10/02/2008 after I'd ran backup before?
To clarify, I make an example
SQL> archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 60
Next log sequence to archive 62
Current log sequence 62
SQL> show parameter log_archive_dest
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest string c:\archive_TEST
SQL>host
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\>rman catalog=rman/rman@meta target=sys/test@test
Recovery Manager: Release 10.2.0.1.0 - Production on Wed Mar 12 14:43:37 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: TEST (DBID=1943616714)
connected to recovery catalog database
RMAN> list archivelog all;
List of Archived Log Copies
Key Thrd Seq S Low Time Name
------- ---- ------- - --------- ----
4509 1 61 A 12-MAR-08 C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1
_MF_1_61_3XGP94N0_.ARC
4508 1 61 A 12-MAR-08 C:\ARCHIVE_TEST\ARC00061_0646915963.001
RMAN> run{
2> backup database plus archivelog;
3> delete noprompt obsolete;
4> }
Starting backup at 12-MAR-08
current log archived
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=150 devtype=DISK
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=61 recid=188 stamp=649163803
input archive log thread=1 sequence=62 recid=190 stamp=649176282
channel ORA_DISK_1: starting piece 1 at 12-MAR-08
channel ORA_DISK_1: finished piece 1 at 12-MAR-08
piece handle=C:\BACKUP_TEST\BACKUPTEST_DB_19JB396U_41_1 tag=TAG20080312T144445 c
omment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04
Finished backup at 12-MAR-08
Starting backup at 12-MAR-08
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00004 name=C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\USERS01.DBF
input datafile fno=00001 name=C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\SYSTEM01.DBF
input datafile fno=00005 name=C:\ORACLE\PRODUCT\10.2.0\ORADATA\EXPIRED.DBF
input datafile fno=00002 name=C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\UNDOTBS01.DB
F
input datafile fno=00003 name=C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\SYSAUX01.DBF
channel ORA_DISK_1: starting piece 1 at 12-MAR-08
channel ORA_DISK_1: finished piece 1 at 12-MAR-08
piece handle=C:\BACKUP_TEST\BACKUPTEST_DB_1AJB3974_42_1 tag=TAG20080312T144451 c
omment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:02:45
Finished backup at 12-MAR-08
Starting backup at 12-MAR-08
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=63 recid=192 stamp=649176458
channel ORA_DISK_1: starting piece 1 at 12-MAR-08
channel ORA_DISK_1: finished piece 1 at 12-MAR-08
piece handle=C:\BACKUP_TEST\BACKUPTEST_DB_1BJB39CD_43_1 tag=TAG20080312T144740 c
omment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 12-MAR-08
Starting Control File and SPFILE Autobackup at 12-MAR-08
piece handle=C:\FLASHBACK_TEST\TEST\AUTOBACKUP\2008_03_12\O1_MF_S_649176465_3XH2
O2XS_.BKP comment=NONE
Finished Control File and SPFILE Autobackup at 12-MAR-08
RMAN retention policy will be applied to the command
RMAN retention policy is set to recovery window of 7 days
using channel ORA_DISK_1
no obsolete backups found
RMAN> list backup of database;
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
4529 Full 1.05G DISK 00:02:39 12-MAR-08
BP Key: 4531 Status: AVAILABLE Compressed: NO Tag: TAG20080312T14445
1
Piece Name: C:\BACKUP_TEST\BACKUPTEST_DB_1AJB3974_42_1
List of Datafiles in backup set 4529
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- --------- ----
1 Full 18774326422 12-MAR-08 C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\SYSTE
M01.DBF
2 Full 18774326422 12-MAR-08 C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\UNDOT
BS01.DBF
3 Full 18774326422 12-MAR-08 C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\SYSAU
X01.DBF
4 Full 18774326422 12-MAR-08 C:\ORACLE\PRODUCT\10.2.0\ORADATA\TEST\USERS
01.DBF
5 Full 18773776232 27-FEB-08 C:\ORACLE\PRODUCT\10.2.0\ORADATA\EXPIRED.DB
F
OKie, I have one full backup with archive logfile right now.
What's happend if I delete all of archive logfile in c:\archive_TEST?
RMAN> exit
Recovery Manager complete.
C:\>dir c:\archive_TEST
Volume in drive C is ORADBA
Volume Serial Number is D44E-7DCA
Directory of c:\archive_TEST
03/12/2008 02:47 PM <DIR> .
03/12/2008 02:47 PM <DIR> ..
03/12/2008 11:16 AM 10,934,784 ARC00061_0646915963.001
03/12/2008 02:44 PM 2,016,256 ARC00062_0646915963.001
03/12/2008 02:47 PM 3,072 ARC00063_0646915963.001
01/31/2008 04:44 PM 143,360 ARC_00002_0645463556.ARC001
4 File(s) 13,097,472 bytes
2 Dir(s) 2,028,089,344 bytes free
C:\>delete c:\archive_test\*.*
'delete' is not recognized as an internal or external command,
operable program or batch file.
C:\>del c:\archive_test\*.*
c:\archive_test\*.*, Are you sure (Y/N)? y
C:\>dir c:\archive_test
Volume in drive C is ORADBA
Volume Serial Number is D44E-7DCA
Directory of c:\archive_test
03/12/2008 02:52 PM <DIR> .
03/12/2008 02:52 PM <DIR> ..
0 File(s) 0 bytes
2 Dir(s) 2,041,192,448 bytes free
C:\>rman catalog=rman/rman@meta target=sys/test@test
Recovery Manager: Release 10.2.0.1.0 - Production on Wed Mar 12 14:52:37 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: TEST (DBID=1943616714)
connected to recovery catalog database
RMAN> crosscheck archivelog all;
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=159 devtype=DISK
validation succeeded for archived log
archive log filename=C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1_MF_1_61_3XG
P94N0_.ARC recid=188 stamp=649163803
validation failed for archived log
archive log filename=C:\ARCHIVE_TEST\ARC00061_0646915963.001 recid=187 stamp=649
163803
validation succeeded for archived log
archive log filename=C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1_MF_1_62_3XH
2H9WS_.ARC recid=190 stamp=649176282
validation failed for archived log
archive log filename=C:\ARCHIVE_TEST\ARC00062_0646915963.001 recid=189 stamp=649
176282
validation failed for archived log
archive log filename=C:\ARCHIVE_TEST\ARC00063_0646915963.001 recid=191 stamp=649
176458
validation succeeded for archived log
archive log filename=C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1_MF_1_63_3XH
2NT4D_.ARC recid=192 stamp=649176458
Crosschecked 6 objects
RMAN> delete archivelog all;
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=159 devtype=DISK
List of Archived Log Copies
Key Thrd Seq S Low Time Name
------- ---- ------- - --------- ----
4509 1 61 A 12-MAR-08 C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1
_MF_1_61_3XGP94N0_.ARC
4508 1 61 X 12-MAR-08 C:\ARCHIVE_TEST\ARC00061_0646915963.001
4517 1 62 A 12-MAR-08 C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1
_MF_1_62_3XH2H9WS_.ARC
4516 1 62 X 12-MAR-08 C:\ARCHIVE_TEST\ARC00062_0646915963.001
4526 1 63 X 12-MAR-08 C:\ARCHIVE_TEST\ARC00063_0646915963.001
4527 1 63 A 12-MAR-08 C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1
_MF_1_63_3XH2NT4D_.ARC
Do you really want to delete the above objects (enter YES or NO)? y
deleted archive log
archive log filename=C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1_MF_1_61_3XG
P94N0_.ARC recid=188 stamp=649163803
deleted archive log
archive log filename=C:\ARCHIVE_TEST\ARC00061_0646915963.001 recid=187 stamp=649
163803
deleted archive log
archive log filename=C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1_MF_1_62_3XH
2H9WS_.ARC recid=190 stamp=649176282
deleted archive log
archive log filename=C:\ARCHIVE_TEST\ARC00062_0646915963.001 recid=189 stamp=649
176282
deleted archive log
archive log filename=C:\ARCHIVE_TEST\ARC00063_0646915963.001 recid=191 stamp=649
176458
deleted archive log
archive log filename=C:\FLASHBACK_TEST\TEST\ARCHIVELOG\2008_03_12\O1_MF_1_63_3XH
2NT4D_.ARC recid=192 stamp=649176458
Deleted 6 objects
RMAN>
Oap, sorry, I am stupid, instead of using RMAN to delete archivelog, I removed them by OS command, but it will be related the second and third question..
2/ Will the RMAN restore and recovery successfully if my DB will crash tomorrow?
3/ I delete all of archivelog files (or backup files) instead of using RMAN, the purpose that I did are decreasing my disk size (of course, I will copy them to the other storage), however, I did not really remove them. Some time in the future, if DB will be crashed, I think, I can copy them right back, and use the RMAN command crosscheck to determind all of backup and archive logfiles.
Am I wrong or right?
Thank you for your clarificaton!
[Updated on: Wed, 12 March 2008 03:02] Report message to a moderator |
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| Re: RMAN restore validate [message #308672 is a reply to message #306117] |
Tue, 25 March 2008 03:11 |
ora_zhp
Messages: 10
Registered: September 2007
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Junior Member |
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you can restore archived redo logs manually if you
wish, in order to save the time needed to restoroe these files later during the RECOVER command, or if you want to store the restored archived redo log files in some new location.
RUN
{
SET ARCHIVELOG DESTINATION TO '/oracle/temp_restore';
RESTORE ARCHIVELOG ALL;
# restore and recover datafiles as needed
.
.
.
}
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