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.
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Oracle channels and effects on deduplication efficiency
+4Best answer by Damian Andre
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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+23- Vaulter
- 1297 replies
- Answer
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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