Recovery of lost non-system datafile

Question

Hello All,
I have simulated a test environment where I have remove one of the non-sys datafile. For this first I have took the full database backup including archivelog and then remove the datafile from OS level. After that I manually created that datafile in mount state. I put the datafile in offline mode.
When I'm trying to recover the datafile, Oracle shows me error.
Please figure me out, where I was wrong.
Below are steps which I had did.
SQL> create tablespace TTS datafile '/u01/app/oracle/oradata/test/test.dbf' size 10M;
RMAN> backup database plus archivelog;
host $ rm /u01/app/oracle/oradata/test/test.dbf
sql>startup mount
sqll> alter database create datafile '/u01/app/oracle/oradata/test/test.dbf';
sql> alter database datafile '/u01/app/oracle/oradata/test/test.dbf' offline;
sql> recover datafile  '/u01/app/oracle/oradata/test/test.dbf';
ORA-00279: change 1080487 generated at 11/06/2012 11:51:50 needed for thread 1
ORA-00289: suggestion :
/u01/app/oracle/fast_recovery_area/TEST/archivelog/2012_11_06/o1_mf_1_13_%u_.arc
ORA-00280: change 1080487 for thread 1 is in sequence #13
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
AUTO
ORA-00308: cannot open archived log
*'/u01/app/oracle/fast_recovery_area/TEST/archivelog/2012_11_06/o1_mf_1_13_%u_.arc'*
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
Thanks,
rohit gupta
http://dbarohit.blogspot.in/

Answer 1

Hello John/Azar,
Thanks!
I can restore/recover the datafile from database full backup.
But in my test case, I want to recover the datafile by first creating it manually(that what I have showed).. and then trying to recover it.
I'm doing this because I have read about this steps.
John,
I've already tried to recover that datafile with RMAN, but no luck.
Below are the error message.
RMAN> recover datafile 6;
Starting recover at 06-NOV-12
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=39 device type=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: SID=38 device type=DISK
allocated channel: ORA_DISK_3
channel ORA_DISK_3: SID=40 device type=DISK
starting media recovery
archived log for thread 1 with sequence 17 is already on disk as file /u01/app/oracle/fast_recovery_area/TEST/archivelog/2012_11_06/o1_mf_1_17_89kdrhjx_.arc
archived log for thread 1 with sequence 18 is already on disk as file /u01/app/oracle/fast_recovery_area/TEST/archivelog/2012_11_06/o1_mf_1_18_89kphznq_.arc
unable to find archived log
archived log thread=1 sequence=13
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 11/06/2012 15:07:53
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 13 and starting SCN of 1080487
regards,
rohit gupta
http://dbarohit.blogspot.in/