Re: Re: HCC in Pillar Storage

From: Martin Berger <>
Date: Tue, 20 Mar 2012 20:30:03 +0100
Message-ID: <>


As Tanel told, HCC Support is decided at the tablespace level. If you have any datafile on non HCC 'supported' Storage, Oracle tries its best to force you in non-HCC land.
The whole game is pure marketing: only Exadata can support HCC decompression. ANY other storage loads all tasks of HCC compression and de-compression onto database-CPUs. There is no difference between ZFS/Pillar and something else like your EVA - except Oracle Marketing decision <=> $$$


On Tue, Mar 20, 2012 at 18:46, Ls Cheng <> wrote:
> Thanks for the explanation
> So if a tablespace has 2 datafiles, one per array, and if a segment located
> in the tablespace spans in these two datafiles, can this segment have part
> of data in HCC and others parts not?

Received on Tue Mar 20 2012 - 14:30:03 CDT

Original text of this message