hi itry to do backup with rman

i want to backup the control file and the spfile evry time for this i cahange the configur to autoback on
and in the first tim thee backup succeess but in the second time i fail on this .


RMAN> connect ********
2> connect ********
3> run
4> {
5> allocate channel t1 type 'SBT_TAPE';
6> allocate channel t2 type 'SBT_TAPE';
7> allocate channel t3 type 'SBT_TAPE';
8> allocate channel t4 type 'SBT_TAPE';
9> send 'NSR_ENV=(NSR_SERVER=legato,NSR_PROXY_PFILE=/nsr/scripts/proxy.cfg)';
10> backup full proxy only format '/FULL_%d_%U/' (database);
11> crosscheck archivelog all;
12> backup archivelog all;
13> delete archivelog all completed before 'sysdate - 5';
14> release channel t1;
15> release channel t2;
16> release channel t3;
17> release channel t4;
18> }
19>
connected to target database: PSCP (DBID=3656927988)

connected to recovery catalog database

allocated channel: t1
channel t1: sid=307 devtype=SBT_TAPE
channel t1: NMO v4.2.0.0
sent command to channel: t1

allocated channel: t2
channel t2: sid=540 devtype=SBT_TAPE
channel t2: NMO v4.2.0.0
sent command to channel: t2

allocated channel: t3
channel t3: sid=754 devtype=SBT_TAPE
"msglogpscp.log" [Read only] 24464 lines, 1397082 characters
channel t2: backup set complete, elapsed time: 00:00:15
channel t3: finished piece 1 at 12-JUL-08
piece handle=0rjlan86_1_1 tag=TAG20080712T190957 comment=API Version 2.0,MMS Version 4.2.0.0
channel t3: backup set complete, elapsed time: 00:00:16
Finished backup at 12-JUL-08

Starting Control File and SPFILE Autobackup at 12-JUL-08
released channel: t1
released channel: t2
released channel: t3
released channel: t4
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Control File and SPFILE Autobackup command at 07/12/2008 19:10:17
RMAN-03014: implicit resync of recovery catalog failed
RMAN-03009: failure of partial resync command on default channel at 07/12/2008 19:10:17
RMAN-20098: invalid backup redo log low scn

Recovery Manager complete.


what is proble ?

what can cheange ?

thanks
~

This is an internal error, and you need to open an SR:

RMAN-20098 invalid backup redo log low scn.
Cause: This is an internal error.
Action: Contact Oracle Support Services

However, you might try unregistering the erregitering the database:

unregister database;
register database;

Hi

Thanks i do unregister and register and is work .