Rman not completely deleting old backups

 

Hi Team,

We are seeing rman not completely deleting old backup pieces.

Below is retention policy we have set

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 1 DAYS;

Below we have total 3 days backups , in below scenario RMAN has deleted only 2 backup pieces of oct 20th ( Bolded) below, 3 pieces of Oct 20th still remains in the folder.

Why it was not deleting all the files of Oct 20th.

[oracle@orauatora101 ORAUAT01]$ ls -ltr

total 29114868

-rw-r----- 1 oracle oinstall 9549012992 Oct 20 01:49 mcomrbms_1_1

-rw-r----- 1 oracle oinstall     386048 Oct 20 01:49 meomrdla_1_1

-rw-r----- 1 oracle oinstall   11108352 Oct 20 01:49 c-3584944277-20131020-00

-rw-r----- 1 oracle oinstall  968689152 Oct 21 01:13 mgomtvnd_1_1

-rw-r----- 1 oracle oinstall 9538011136 Oct 21 01:47 mhomtvth_1_1