RMAN backup error

I have a 2 node RAC database which is using ASM. I am using RMAN to backup the database. For the RMAN backups we do not have a recovery catalog, we are using the controlfile. My 'control_file_record_keep_time' parameter is setup at 7 days. One of the DBAs went and cleaned out the ARCHIVELOG directory using 'asmcmd' He basically deleted the files using the 'rm' command to delete all archive logs that were older than 5 days. now my backups are filing with the follwoing errors:

RMAN-00571: ======================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ==========
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 10/28/2007 21:04:14
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
ORA-19625: error identifying file +ASMDG/prod/1_118839_624905386.dbf
ORA-17503: ksfdopn:2 Failed to open file +ASMDG/prod/1_118839_624905386.dbf
ORA-15173: entry '1_118839_624905386.dbf' does not exist in directory 'prod'

WHat do I do to get my backups to start working again?

Chintz

Take a full backup then put your DBA in 30 days provation.
At this point you cannot recover from the backup you have.

You will have to perform the following before you can do a full backup:

Code:

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RMAN> crosscheck archivelog all;
RMAN> delete expired archivelog all;

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then do as PAVB indicated, do a full backup and put the DBA on probation.