Backup size is increased after resync catalog

Hi everyone,
I have describe my problem, if anyone have a solution please provide me.
Rman catalog database version : 10.2.0.1.0, OS : red hat linux
Target database version : 10.2.0.5.0, OS : solaris 10
rman catalog database space is full, then i move my example tablespace to another location, but i forgot to change the ownership of new file.
And I have no backup of my rman catalog database. so i offline the datafile first for opening the rman catalog database after opening the database I have offline the whole example tablespace and this tablespace cannot contain any thing related the catalog.
after that I used the command : crosscheck archivelog all;
DELETE EXPIRED ARCHIVELOG ALL
then i run the command : CROSSCHECK BACKUP;
DELETE EXPIRED BACKUP;
then i run the command : report obsolete;
delete obsolete;
then i run the command : RESYNC CATALOG;
then i run the command : change archivelog all validate;
after doing all the thing when I am taking a backup of archive log by using following command :
run {allocate channel c1 device type disk format '/appl2/prodback_rman/prod_fullbackup/ARCH_%d_%s.bak';
backup archivelog all;
before performing all the above thing my archive backup of whole day is around 5gb but after the above thing my archive backup of one day is around : 126gb
and my level0 backup is alright after and before the above thing and the size is around : 139gb
the script for the full backup is :
run {allocate channel c1 device type disk format '/appl2/prodback_rman/prod_fullbackup/FULL_%d_%s_%c.bak';
backup incremental level 0 database skip offline;
after that I have perform the incremental level 1 backup by using the following script :
run {allocate channel c1 device type disk format '/appl2/prodback_rman/prod_fullbackup/INC1_%d_%s_%c.bak';
backup incremental level 1 database;
before the above activity the size of incremental backup is around : 4.5gb but after performing the above activity the incremental backup size is around : 120gb
it is very critical for me, if any one have the solution please provide me as early as possible.
Thanks & Regards
Rakesh Kumar

Hi Hemant K Chitale,
you said that I am using the COMPRESSED BACKUPSETs till 22-Jan, so I am posting
the rman configuration here that is used before all this happening and same
configuration is used right now.
but before resync catalog the archivelog is generated only one location then I used to archive log
dest for archive log generation then after 5 month I will resync my catalog. may be it is the
reason.
because there are no compressed backupset is defined in the rman configuration.
RMAN> show all;
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 2;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/appl2/prodback_rman/prod_fullbackup/ctrl_%F';
CONFIGURE DEVICE TYPE DISK PARALLELISM 2;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE CHANNEL 1 DEVICE TYPE DISK FORMAT '/appl2/prodback_rman/prod_fullbackup/prod_%d_%s_%c.bak', '/appl2/prodback_rman/usb/prod_%d_%s_%c.bak';
CONFIGURE MAXSETSIZE TO 20 G;
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/appl2/prodback_rman/prod_fullbackup/snapcf_PROD.f';
Archive log generation log on the daily basis.
SQL> select trunc(COMPLETION_TIME,'DD') Day, thread#,
round(sum(BLOCKS*BLOCK_SIZE)/1048576) MB,
count(*) Archives_Generated from v$archived_log
group by trunc(COMPLETION_TIME,'DD'),thread# order by 1;
DAY THREAD# MB ARCHIVES_GENERATED
04-FEB-13 1 2776 37
05-FEB-13 1 16767 220
06-FEB-13 1 16545 216
07-FEB-13 1 15772 208
08-FEB-13 1 15056 198
09-FEB-13 1 18486 244
10-FEB-13 1 17591 232
11-FEB-13 1 18163 238
12-FEB-13 1 15062 198
13-FEB-13 1 26383 342
14-FEB-13 1 36279 462
DAY THREAD# MB ARCHIVES_GENERATED
15-FEB-13 1 34010 432
16-FEB-13 1 32230 413
17-FEB-13 1 31904 408
18-FEB-13 1 33448 426
19-FEB-13 1 34639 444
20-FEB-13 1 36684 468
21-FEB-13 1 27547 352
right know the archive log backup size by rman is around 19gb per day.
so tell me how we reduce the size of my archive log backup according to
my rman configuration and how can i reduce the archive log generation on
my production server on daily basis.
Thanks & Regards
Rakesh Kumar

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