RE: Dataguard Exadata -> Database Appliance
- From: Amrit Pal. Singh [IT Shared Services – Hub] <singha@xxxxxxxxx>
- To: "Chris.Stephens@xxxxxxx" <Chris.Stephens@xxxxxxx>, "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 15 Apr 2014 18:19:44 +0300
Hi
We have a DR on exa to exa setup.
I think there will be issues if you have EHCC (Exadata Hybrid Columnar
Compression) is enabled on source machine.
Normal storage will not understand those blocks once you restore those using
rman. There are certain storages available by Oracle which understands EHCC but
not the regular ones.
So if you are not using EHCC; I don’t see any challenge.. but with EHCC I don’t
think it will go.
Thanks
amrit
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Stephens, Chris
Sent: Tuesday, April 15, 2014 6:09 PM
To: 'oracle-l@xxxxxxxxxxxxx'
Subject: Dataguard Exadata -> Database Appliance
I was just asked by management whether it would be possible to run Dataguard
from Exadata (Primary) to a Database Appliance (Standby). I can’t think of a
reason why that wouldn’t be possible.
I’m not sure that’s the question they are actually asking though which is:
Would it be justifiable for us to save some money and run our standby on
cheaper hardware (and consequently software licensing)?
I don’t think processing power differences will be a problem for quite some
time. The biggest drawback I can think of is that all of a sudden you have to
keep OS/GI (running RAC)/RDBMS versions and patching at the same level.
What else am I not thinking of? …how bad of an idea is it?
I would have even really considered it as a possibility but then I don’t pay
the bills or have to justify them either.
Thanks for any help with this.
Chris
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