Re: Oracle RAC thread
- From: Jeremy Schneider <jeremy.schneider@xxxxxxxxxxxxxx>
- To: oracle@xxxxxxxxxxx
- Date: Thu, 2 Jan 2014 09:55:24 -0600
Dave, I'm curious why you would opt for manual log ship and apply instead
of Data Guard? Also, why do you say that "Data Guard is expensive"? Do
you just mean that enterprise edition is expensive?
-Jeremy
--
http://about.me/jeremy_schneider
On Mon, Dec 30, 2013 at 1:15 PM, Dave Morgan <oracle@xxxxxxxxxxx> wrote:
> Ahh, the joys of digest mode and holidays together
>
> On Mon, Dec 23, 2013 at 8:07 PM, Chris King <ckaj111@xxxxxxxx> wrote:
>>
>> We're architecting a new system, and will need 99.5% availability.
>>> Looking
>>>
>>
> I believe this is the wrong metric to use. As others have pointed out it
> is equivalent to
> ~40hours/year. The correct question is what is the longest outage the
> business can afford
> for any single event?
>
> 15 minutes, 1 hour, 4 hours?
>
> If the business claims less than 15 minutes they should have real reasons,
> DataGuard is expensive.
>
> My standard is a simple automatic log ship and apply system from the old
> days. Train the
> sysadmins to do the failure-over and you can meet a 15 minute deadline
> during business hours.
>
> Cheap, easy, tested, robust, runs with 3-5 hours of scheduled downtime per
> year. Every year.
>
> YMMV
> Dave
>
> --
> Dave Morgan
> Senior Consultant, 1001111 Alberta Limited
> dave.morgan@xxxxxxxxxxx
> 403 399 2442
>
>
> --
> //www.freelists.org/webpage/oracle-l
>
>
>
Other related posts:
