Re: RMAN Compression experiences

Thats interesting. That suggests to me that on a restore, RMAN is decompressing the data on disk then writing to the destination (which would take two write operations), but during a backup they are compressing it in memory then writing to the destination (one write operation). Or do I misunderstand the implications?

On Jan 15, 2008 1:30 PM, Jack van Zanen <jack_at_vanzanen.com> wrote:

> Nope, similar experience as you have
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> Jack
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> *From:* oracle-l-bounce_at_freelists.org [mailto:
> oracle-l-bounce_at_freelists.org] *On Behalf Of *Juan Miranda
> *Sent:* Wednesday, January 16, 2008 4:18 AM
> *To:* oracle-l_at_freelists.org
> *Subject:* RMAN Compression experiences
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> Hi
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> I tried RMAN compression and it seems to work fast (if you use parallel
> channels) and very eficiently.
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> I get a compress ratio of 10 to 1.
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> Anyone have some negative experiences (bugs,etc.) working with it ??
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> Thanks.
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-- 
Andrew W. Kerber

'If at first you dont succeed, dont take up skydiving.'

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