There’s a great note from MOS – Checklist for an RMAN Restore (Doc ID 1554636.1) but how many of you review this before performing a restore?
If you don’t then you are as guilty as I am.
RMAN> restore database until time "TO_DATE('2015-MAR-04 19:53:54','YYYY-MON-DD HH24:MI:SS')" preview summary;
Starting restore at 2015-MAR-05 18:03:28
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=9 device type=DISK
datafile 5 will be created automatically during restore operation
datafile 6 will be created automatically during restore operation
datafile 7 will be created automatically during restore operation
datafile 8 will be created automatically during restore operation
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 03/05/2015 18:03:28
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 4 found to restore
RMAN-06023: no backup or copy of datafile 3 found to restore
RMAN-06023: no backup or copy of datafile 2 found to restore
RMAN-06023: no backup or copy of datafile 1 found to restore
Let’s check backup for datafile 5,6,7,8 – looks good
RMAN> list backup of datafile 5,6,7,8 summary; List of Backups =============== Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag ------- -- -- - ----------- -------------------- ------- ------- ---------- --- 98 B 0 A DISK 2015-MAR-04 19:54:24 1 1 YES LEVEL0 99 B 0 A DISK 2015-MAR-04 19:54:26 1 1 YES LEVEL0 100 B 0 A DISK 2015-MAR-04 19:54:27 1 1 YES LEVEL0 101 B 0 A DISK 2015-MAR-04 19:54:29 1 1 YES LEVEL0 109 B 1 A DISK 2015-MAR-04 22:03:26 1 1 YES LEVEL1 110 B 1 A DISK 2015-MAR-04 22:03:28 1 1 YES LEVEL1 111 B 1 A DISK 2015-MAR-04 22:03:29 1 1 YES LEVEL1 112 B 1 A DISK 2015-MAR-04 22:03:30 1 1 YES LEVEL1 RMAN>
RMAN> list backup of datafile 1 summary; List of Backups =============== Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag ------- -- -- - ----------- -------------------- ------- ------- ---------- --- 94 B 0 A DISK 2015-MAR-04 19:54:13 1 1 YES LEVEL0 105 B 1 A DISK 2015-MAR-04 22:02:57 1 1 YES LEVEL1 RMAN>
The until time was not far enough to include backup for data 1 ..
RMAN> restore database until time "TO_DATE('2015-MAR-04 19:54:30','YYYY-MON-DD HH24:MI:SS')" preview summary;
Starting restore at 2015-MAR-05 18:35:56
using channel ORA_DISK_1
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- -------------------- ------- ------- ---------- ---
94 B 0 A DISK 2015-MAR-04 19:54:12 1 1 YES LEVEL0
96 B 0 A DISK 2015-MAR-04 19:54:19 1 1 YES LEVEL0
95 B 0 A DISK 2015-MAR-04 19:54:16 1 1 YES LEVEL0
97 B 0 A DISK 2015-MAR-04 19:54:22 1 1 YES LEVEL0
98 B 0 A DISK 2015-MAR-04 19:54:23 1 1 YES LEVEL0
99 B 0 A DISK 2015-MAR-04 19:54:26 1 1 YES LEVEL0
100 B 0 A DISK 2015-MAR-04 19:54:27 1 1 YES LEVEL0
101 B 0 A DISK 2015-MAR-04 19:54:29 1 1 YES LEVEL0
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- -------------------- ------- ------- ---------- ---
102 B A A DISK 2015-MAR-04 19:54:30 1 1 YES ARCHIVELOG
Media recovery start SCN is 342495
Recovery must be done beyond SCN 342508 to clear datafile fuzziness
Finished restore at 2015-MAR-05 18:35:56
Where on earth did I get the time “2015-MAR-04 19:54:30″ to begin with?
I used Low Time from ARCHIVELOG backup which was not sufficient for demonstration purpose.
RMAN> list backupset 102;
List of Backup Sets
===================
BS Key Size Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ --------------------
102 3.50K DISK 00:00:00 2015-MAR-04 19:54:30
BP Key: 102 Status: AVAILABLE Compressed: YES Tag: ARCHIVELOG
Piece Name: /oradata/backup/arc_HAWK_3130551611_20150304_37q10orm_1_1
List of Archived Logs in backup set 102
Thrd Seq Low SCN Low Time Next SCN Next Time
---- ------- ---------- -------------------- ---------- ---------
1 140 342477 2015-MAR-04 19:53:54 342514 2015-MAR-04 19:54:30
RMAN>
Instead, use “Next Time” which is also the same as “Completion Time” from list backup summary;
RMAN> list backup summary; List of Backups =============== Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag ------- -- -- - ----------- -------------------- ------- ------- ---------- --- 90 B A A DISK 2015-MAR-04 19:53:58 1 1 YES ARCHIVELOG 91 B A A DISK 2015-MAR-04 19:54:00 1 1 YES ARCHIVELOG 92 B A A DISK 2015-MAR-04 19:54:02 1 1 YES ARCHIVELOG 93 B A A DISK 2015-MAR-04 19:54:05 1 1 YES ARCHIVELOG 94 B 0 A DISK 2015-MAR-04 19:54:13 1 1 YES LEVEL0 95 B 0 A DISK 2015-MAR-04 19:54:16 1 1 YES LEVEL0 96 B 0 A DISK 2015-MAR-04 19:54:20 1 1 YES LEVEL0 97 B 0 A DISK 2015-MAR-04 19:54:22 1 1 YES LEVEL0 98 B 0 A DISK 2015-MAR-04 19:54:24 1 1 YES LEVEL0 99 B 0 A DISK 2015-MAR-04 19:54:26 1 1 YES LEVEL0 100 B 0 A DISK 2015-MAR-04 19:54:27 1 1 YES LEVEL0 101 B 0 A DISK 2015-MAR-04 19:54:29 1 1 YES LEVEL0 102 B A A DISK 2015-MAR-04 19:54:30 1 1 YES ARCHIVELOG 103 B F A DISK 2015-MAR-04 19:54:34 1 1 NO TAG20150304T195432 104 B A A DISK 2015-MAR-04 22:02:49 1 1 YES ARCHIVELOG 105 B 1 A DISK 2015-MAR-04 22:02:57 1 1 YES LEVEL1 106 B 1 A DISK 2015-MAR-04 22:03:04 1 1 YES LEVEL1 107 B 1 A DISK 2015-MAR-04 22:03:18 1 1 YES LEVEL1 108 B 1 A DISK 2015-MAR-04 22:03:24 1 1 YES LEVEL1 109 B 1 A DISK 2015-MAR-04 22:03:26 1 1 YES LEVEL1 110 B 1 A DISK 2015-MAR-04 22:03:28 1 1 YES LEVEL1 111 B 1 A DISK 2015-MAR-04 22:03:29 1 1 YES LEVEL1 112 B 1 A DISK 2015-MAR-04 22:03:30 1 1 YES LEVEL1 113 B A A DISK 2015-MAR-04 22:03:32 1 1 YES ARCHIVELOG 114 B F A DISK 2015-MAR-04 22:03:35 1 1 NO TAG20150304T220333 RMAN>
