Re: RMAN Compression experiences
- From: "Andrew Kerber" <andrew.kerber@xxxxxxxxx>
- To: jack@xxxxxxxxxxxx
- Date: Tue, 15 Jan 2008 14:04:22 -0600
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@xxxxxxxxxxxx> wrote:
> Nope, similar experience as you have
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> Jack
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> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:
> oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Juan Miranda
> *Sent:* Wednesday, January 16, 2008 4:18 AM
> *To:* oracle-l@xxxxxxxxxxxxx
> *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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