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Is there any downside to using multiple channels (data streams) for Oracle RMAN backups when client-side deduplication is configured? i.e. is deduplication negatively impacted vs using a single channel.
Thank you.
Best answer by Damian Andre
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+23
Hi
Talking with one of our oracle experts, he says it should not affect deduplication as by default it will only assign one database file to a channel - so the data stream integrity for purposes of deduplication should be the same. If you change the section size for datafile there could be an impact, but that is not a default option.
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