Recovery Strategy - Need Some Information - Critical

Hello all,
I need help from you all to understand the following scenario:
1.We have a Production database which is running in ARCHIEVELOG mode.
2.This database is supported with FAILOVER Machenism.
3.The backup strategy is as follows
3.1 Sunday Level 0
3.2 Monday,
3.3 Tuesday Level 2
3.3 Wednesday Level 1
3.4 Thursday Level 2
3.5 Friday Level 1
3.6. Saturday Level 2
Now follows my question:
1. If I need to delete some of the old Archieve files, Can I delete them?
2. If I can delete them, up to which date can I delete them?
3. Consider on Sunday the date is 16, and my db is crashed on 20 i.e on Thursday and I have deleted the archieve files till 15 i.e. on Saturday. In this situation can I recover the database completely?
If you need any clarification, please revert.
This is very critical issue for me.
Your help will be appreciated.
Himanshu

Hi again Himanshu,
In fact you don't even need to restore the archived redo logs if you backup them!
For example in your backup scripts you can includeBACKUP ARCHIVE LOG ALL DELETE INPUT;This will include the in your backup sets, so they'll be targets for your backup retention policy.
Then, if it crashes on monday, you just RESTORE UNTIL "sunday";
RECOVER UNTIL "monday sometime";RMAN will find the necessary backupsets, including those for the archived redo logs and do it for you.
Or you can RESTORE ARCHIVE LOG also. Refer to RMAN guide for syntax.
HTH,
Yoann.
Message was edited by:
Yoann Mainguy
"sunday" and "monday sometime"are not RMAN keywords! (just to get it straight :) )

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