New to Oracle DBA

Recently I have been thrust into a role of DBA (kicking and screaming). My supervisor put me through the Oracle Sys Admin I & II workshops, but it's a starting point; It seems that many of the features that have been addressed are not used in our environment (ASM, AMM, RMAN, EM) that makes my life less funny!
My job now is to monitor the database for all performance issues, the prevention of proactive failure, the backup and restore (BU / R is managed by NetBackup/BCV with Symmetrix disk mirrored between).

I was an admin systems for many years, and I've been able to generate scripts a few sanitary controls outside the DB; at the level of the BONE. I'm starting to look at some of the views v$ that allow me to see what is happening in our system.
I have a few generalized questions, I would ask (if I need a separate thread for each of the questions let me know and I'll repost):
1. How can I determine what features are used by the database (outside the features mentioned above)?
2. what should be followed on a base < interval > (hourly, daily, monthly)?
3. what should I look for when I followed him? (right now I look at the alert log every day for entries "ORA" - and send alerts...)

I'm sure I'll have many more questions, but these are ones I have on my mind right now.
I apologize for the generality of my questions, I'm sure we'll get more accurate that the discussion continues.

We had the following:
Oracle 11 g 2 HA (Veritas Cluster NOT oracle cluster or grid control) mode running on Solaris 10...
Thanks in advance for helping me understand this complex beast!

Hello

1. How can I determine what features are used by the database (outside the features mentioned above)?
A >

Under query will give the features that are currently enabled on your database.
Select * option $ v where the VALUE = 'TRUE '.

This will give you the details usage report features db if used

Select * from DBA_FEATURE_USAGE_STATISTICS where CURRENTLY_USED = 'TRUE '.

2. what should be followed on a basis (hourly, daily, monthly)?
A >
S/n should be followed always schedule/carefully, but you can't be human control grid or cronjobs (with automatic e-mail alerts) should be programmed.
AWR/ADDM features are available that allows you to go back in time & see what was going on in DB giving excellent statistics of the DB

3. what should I look for when I followed him? (right now I look at the alert log every day for entries "ORA" - and send alerts...)
A >
As grid needs licenses the simplest to be a SYSTEM administrator is to make some shell scripts and place a few jobs long life in cron
This cron so captured ORA-, err, corrupted fail, warning, down, stop channels alerts log
Apart from this you can also have scripts in place for session locking/blocking in DB, cpu/memory/IO TOP consuming SQL at the request to ship you once use Server metrics goes high
One of the most important is alert, space free OS space, tablespace space free sql must always be runing in cron every min

Thank you
Ajay more
http://moreajays.blogspot.com

Tags: Database

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