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Too many Rman Backup files generated while performing full database backup

user7993571Apr 1 2020 — edited Apr 8 2020

Hi

While performing rman full database backup with compression the backup generates small set of many files

even though the following configurations are used

Rman Configuration

CONFIGURE DEVICE TYPE DISK PARALLELISM 2 BACKUP TYPE TO BACKUPSET;

CONFIGURE CHANNEL DEVICE TYPE DISK MAXPIECESIZE 32 G;

CONFIGURE CHANNEL 1 DEVICE TYPE DISK MAXPIECESIZE 32 G;

CONFIGURE CHANNEL 2 DEVICE TYPE DISK MAXPIECESIZE 32 G;

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

Backup command

run {

backup as compressed backupset incremental level 0 tag DB_FULL_$TDAY format '$backup_dir/DB_INCFULL_%U_$TDAY.Bkp' database;

sql 'alter system archive log current';

backup as compressed backupset archivelog all tag = ARCH_FULL_$TDAY format '$backup_dir/ARCH_%U_$TDAY.Bkp' delete all input;

backup current controlfile tag = CTL_FULL_$TDAY format '$backup_dir/CTL_%d_DBID%I_%U_$TDAY.Bkp';

CROSSCHECK BACKUP;

DELETE FORCE NOPROMPT OBSOLETE DEVICE TYPE DISK;

DELETE NOPROMPT EXPIRED BACKUP;

delete noprompt archivelog until time 'sysdate-1/24';

}

Backup Files

DB_INCFULL_gqusgohh_1_1_31032020.Bkp,DB_INCFULL_gsusgot4_1_1_31032020.Bkp ... like 132 files

Could any one help to find the root cause for it

We require to keep backup piece in a large file up ,say 32GB in size that is easy manage the files.

Thanks

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Added on Apr 1 2020
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