why my archivelog deletion is not happening.

[oracle@dbadm ~]$ rman target /

Recovery Manager: Release - Production on Sat Jan 30 14:58:30 2016

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connected to target database: DDD (DBID=3695488924)


using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=215 instance=DDD device type=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: SID=1191 instance=DDD device type=DISK
allocated channel: ORA_DISK_3
channel ORA_DISK_3: SID=1489 instance=DDD device type=DISK
allocated channel: ORA_DISK_4
channel ORA_DISK_4: SID=6 instance=DDD device type=DISK
allocated channel: ORA_DISK_5
channel ORA_DISK_5: SID=205 instance=DDDD device type=DISK
allocated channel: ORA_DISK_6
channel ORA_DISK_6: SID=303 instance=DDD device type=DISK
allocated channel: ORA_DISK_7
channel ORA_DISK_7: SID=1099 instance=DDD device type=DISK
allocated channel: ORA_DISK_8
channel ORA_DISK_8: SID=1196 instance=DDD device type=DISK
specification does not match any archived log in the repository

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slightwv (䄆 Netminder) Commented:
Several possible reasons.

First possibility:
The connect you provided to RMAN was local and not for a catalog.

If the backups are done through a recovery catalog then they are managed from the catalog and not from the control files.

The archived redo logs you see on disk aren't part of the managed files from RMAN.

It may be possible they are still necessary for recovery and cannot be deleted.

Possibly a few other ways.

If you can, please post your RMAN backup scripts.

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