RMAN-06023: no backup or copy of datafile

Question

Hi,
on 10g R2 on AIX, I want to recover my DB at the time of 26 of march. The backup files are available but I receive :
RMAN> Run {
2>         SET UNTIL TIME "to_date('26-03-2011 00:00:00','DD-MM-YYYY HH24:MI:SS')";
3>      allocate channel t1 type disk;
4>      restore database;
5>      recover database;
6>      sql "alter database open";
7> }
8>
executing command: SET until clause
allocated channel: t1
channel t1: sid=155 devtype=DISK
Starting restore at 01-APR-11
released channel: t1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 04/01/2011 11:13:42
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 216 found to restore
RMAN-06023: no backup or copy of datafile 215 found to restore
RMAN-06023: no backup or copy of datafile 214 found to restoreWhy RMAN can't find them ?
How to verify ?
Thank for help.

Answer 1

Hi,
Can you please make sure the restore mechanism you are following is correct or not?
Mechanics of Restore Operations
RMAN automates the procedure for restoring files. You do not need to go into the operating system, locate the backup that you want to use, and manually copy files into the appropriate directories. When you issue a RESTORE command, RMAN directs a server session to restore the correct backups to either:
* The default location, overwriting the files with the same name currently there
* A new location, which you can specify with the SET NEWNAME command
To restore a datafile, either mount the database or keep it open and take the datafile to be restored offline. When RMAN performs a restore, it creates the restored files as datafile image copies and records them in the repository.
refer the link for more information
http://download.oracle.com/docs/cd/B12037_01/server.101/b10734/rcmconc2.htm
Best regards,
Rafi.
http://rafioracledba.blogspot.com/