Re: Routine Checks

  • From: "Charles Schultz" <sacrophyte@xxxxxxxxx>
  • To: niall.litchfield@xxxxxxxxx, oracle-l <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 16 Aug 2006 08:06:45 -0500

On the subject of EM10gR2:
We had an Oracle instructor who told us to forget about trying to use
EM10gR1, as it was "not ready" for public consumption. So we waited for R2
and were glad we did. Most things work quite well, and there are a few
quirks here and there (especially where the documentation says one thing and
EM says another). Due to EM's micromanagement style, we have not turned on
any of the email alerts until we have a good grasp of what exactly we want
to be notified of, but we do use it as a Monitor to gauge overall system
health and to drill down quickly on problem areas. I do not believe we have
come across any critical components that outright fail. We have a couple SRs
with Oracle Support about issues with the OMS and the agent core dumping or
hanging, but that does not directly affect the performance of the target
database, only the monitoring thereof.


On 8/16/06, Niall Litchfield <niall.litchfield@xxxxxxxxx> wrote: 

As some of you will have picked up I am in a relatively new position. One
of the things sadly lacking is any sort of pro-active monitoring routine.
This is something that I want to introduce, but my experience of, for
example, daily checks is that they tend not to happen after a while. So I
guess my question is what would you add to/remove from a list of daily
checks for all production databases that read.

1) database up
2) application up
3) alert.log errors
4) audit trails
5) backup success/failure
6) dr logs applied (where applicable)
7) failed jobs

and for a weekly list

1) db size
2) object size
3) availability
4) listener.log errors
5) redo/transaction volume


You'll see that I'm mainly coming at this from a security and availability
standpoint - I don't see that performance is amenable to routine system wide
checks.

A related question is how many of you are using, specifically, 10gR2 EM to
automate these sorts of things. We have a pretty dire EM10gR1 implementation
that I wish to redo and 10gR2 looks an order of magnitude better than R1,
but any gotchas - like it doesn't work - would be nice to know ahead of
time.


--
Niall Litchfield
Oracle DBA
http://www.orawin.info




--
Charles Schultz

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