Re: 11gR2 rman compression algorithms
- From: Seth Miller <sethmiller.sm@xxxxxxxxx>
- To: Jeremy Schneider <jeremy.schneider@xxxxxxxxxxxxxx>
- Date: Thu, 4 Sep 2014 12:49:02 -0500
Jeremy,
No, I'm not sure. I copied that text verbatim from the book. The MOS
note 563427.1 is probably the closest you're going to get to an
explanation. But, I bet Fritz or Tanel could demonstrate conclusively
exactly which compression algorithm is being used for each level using OS
utilities.
Seth Miller
On Thu, Sep 4, 2014 at 12:43 PM, Jeremy Schneider <
jeremy.schneider@xxxxxxxxxxxxxx> wrote:
> On Thu, Sep 4, 2014 at 1:22 PM, Seth Miller <sethmiller.sm@xxxxxxxxx>
> wrote:
>
>>
>> *• HIGH: This level provides the best compression ratio, but consumes the
>> most CPU. (It corresponds to the GZIP compression.)*
>>
>
> Just noticed this - are you sure "gzip" is correct? I think the gzip
> program actually uses the zlib library to do the compression, so that
> doesn't really make sense.
>
> --
> http://about.me/jeremy_schneider
>
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