Re: OEM GC High Availability and Downtime
- From: Guillermo Alan Bort <cicciuxdba@xxxxxxxxx>
- To: RStorey@xxxxxxxxxxxxxxxxxx
- Date: Thu, 24 Jun 2010 12:44:51 -0300
Distributed RAC is supported for relatively close locations, and we are
deploying GC around the world. the DataGuard for repository is being
considered, however that only safeguards against emergency outage... what
about planned outage? is there a way to avoid it? (other than never applying
a patch, of course)
Alan.-
On Thu, Jun 24, 2010 at 12:21 PM, Storey, Robert (DCSO) <
RStorey@xxxxxxxxxxxxxxxxxx> wrote:
> What about using RAC or Dataguard to provide redundancy to the
> repository?
>
>
>
> Not sure there is anything that you can do for the agents, but, if you have
> multiple OMS’s talking to a repository that was covered by Dataguard, you
> could switchover to the other repository.
>
>
>
> Or, if you just want constant uptime on it, why not implement a RAC for the
> repository.
>
>
>
> Just first thoughts to pop in my head.
>
>
>
>
>
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Guillermo Alan Bort
> *Sent:* Thursday, June 24, 2010 9:55 AM
> *To:* oracle-l-freelists
> *Subject:* OEM GC High Availability and Downtime
>
>
>
> List,
>
> We are implementing GC for database monitoring for over 2500 databases,
> however there is concern of the possible downtimes of Grid, during which the
> databases will not be monitored.
>
> I can think of two possible scenarios:
>
> 1) Planned outage: in order to apply a patch, the entire OEM needs to be
> shut down.
> 2) Emergency outage: Media Failure, Hardware Failure, Power Failure, Oracle
> Bug, etc.
>
> The HA strategy is having several OMS across different locations (three,
> actually) however I am concerned about the repository.
>
> It is very unlikely that an emergency outage will affect all three OMS,
> however it might affect the repository... and the planned outage in several
> situations will require a full shutdown of all OMS, Agents and Repository.
>
> My question is: have you ever dealt with this issue? How did you solve
> it? did you just accept the outage? did you find an alternative?
>
> TIA
> Alan.-
>
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