RMAN script issue ....

Question

Oracle Server - Enterprise Edition - Version: 10.2.0.3
RMAN Catalog : 10.2.0.4
I am using the follwoing script for backup :
4> run
5> {
6>     allocate channel dev1 type disk format 'Z:\Rbackup\DMP\db_t%t_s%s_p%p';
7>     allocate channel dev2 type disk format 'Z:\Rbackup\DMP\db_t%t_s%s_p%p';
8>     backup database FILESPERSET 20 ;
9>     backup archivelog all archivelog until time 'sysdate-1' delete all input ;
10>     release channel dev1 ;   
11>     release channel dev2 ;   
12> }The issue is with backup archivelog all archivelog until time 'sysdate-1' delete all input ;
This command gives error
ORA-19588: Archived Log Recid Stamp Is No Longer Valid
even after doing crosscheck .
Referred Metalink ID : 1189883.1
which clearly indicates that the statement
backup archivelog all archivelog until time 'sysdate-1' delete all input ;
is wrong by logic and is the reason for the issue .
And suggests to use
backup archivelog until time 'sysdate-1' delete all input ;
or
backup archivelog all delete input ;
which definitely do not serve the purpose .
The logic that needs to be implemented is
I need to backup all archivelogs and delete archivelogs until sysdate-1  .....
How can I do this ? Please help ....
Regards
Renjith Madhavan

Answer 1

Of course. You have asked Oracle to backup files as of 1 day old. Your command is explicitly stating that it is not to backup files newer than 1 day old.
Read and understand "archivelogRecordSpecifier" at
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14194/rcmsynta008.htm#sthref121
UNTIL TIME "Specifies the end date for a sequence of archived redo log files"
It is actually used when doing RECOVER and RESTORE so as to do Point In Time Recovery.
Backups are not done with UNTIL TIME. The only scenario where someone would backup until TIME is when he is writing separate sets of backups deliberately to different backupsets (e.g. one backupset representing 01-Dec will subsequently be copied to another location or to Tape-1, the next backupset representing 02-Dec will be copied to a different location or to Tape-2 etc).
However, when you do a BACKUP DATABASE today, you have to ensure that you BACKUP ARCHIVELOG upto the latest archivelog else, you will NOT be able to use today's database backup for restore and recovery.
Hemant K Chitale
Edited by: Hemant K Chitale on Dec 6, 2010 2:57 PM